{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (inaki@blueleaf.cc)

@GDateTime@ is an opaque structure whose members
cannot be accessed directly.

/Since: 2.26/
-}

#define ENABLE_OVERLOADING (MIN_VERSION_haskell_gi_overloading(1,0,0) \
       && !defined(__HADDOCK_VERSION__))

module GI.GLib.Structs.DateTime
    ( 

-- * Exported types
    DateTime(..)                            ,
    noDateTime                              ,


 -- * Methods
-- ** add #method:add#

#if ENABLE_OVERLOADING
    DateTimeAddMethodInfo                   ,
#endif
    dateTimeAdd                             ,


-- ** addDays #method:addDays#

#if ENABLE_OVERLOADING
    DateTimeAddDaysMethodInfo               ,
#endif
    dateTimeAddDays                         ,


-- ** addFull #method:addFull#

#if ENABLE_OVERLOADING
    DateTimeAddFullMethodInfo               ,
#endif
    dateTimeAddFull                         ,


-- ** addHours #method:addHours#

#if ENABLE_OVERLOADING
    DateTimeAddHoursMethodInfo              ,
#endif
    dateTimeAddHours                        ,


-- ** addMinutes #method:addMinutes#

#if ENABLE_OVERLOADING
    DateTimeAddMinutesMethodInfo            ,
#endif
    dateTimeAddMinutes                      ,


-- ** addMonths #method:addMonths#

#if ENABLE_OVERLOADING
    DateTimeAddMonthsMethodInfo             ,
#endif
    dateTimeAddMonths                       ,


-- ** addSeconds #method:addSeconds#

#if ENABLE_OVERLOADING
    DateTimeAddSecondsMethodInfo            ,
#endif
    dateTimeAddSeconds                      ,


-- ** addWeeks #method:addWeeks#

#if ENABLE_OVERLOADING
    DateTimeAddWeeksMethodInfo              ,
#endif
    dateTimeAddWeeks                        ,


-- ** addYears #method:addYears#

#if ENABLE_OVERLOADING
    DateTimeAddYearsMethodInfo              ,
#endif
    dateTimeAddYears                        ,


-- ** compare #method:compare#

    dateTimeCompare                         ,


-- ** difference #method:difference#

#if ENABLE_OVERLOADING
    DateTimeDifferenceMethodInfo            ,
#endif
    dateTimeDifference                      ,


-- ** equal #method:equal#

    dateTimeEqual                           ,


-- ** format #method:format#

#if ENABLE_OVERLOADING
    DateTimeFormatMethodInfo                ,
#endif
    dateTimeFormat                          ,


-- ** getDayOfMonth #method:getDayOfMonth#

#if ENABLE_OVERLOADING
    DateTimeGetDayOfMonthMethodInfo         ,
#endif
    dateTimeGetDayOfMonth                   ,


-- ** getDayOfWeek #method:getDayOfWeek#

#if ENABLE_OVERLOADING
    DateTimeGetDayOfWeekMethodInfo          ,
#endif
    dateTimeGetDayOfWeek                    ,


-- ** getDayOfYear #method:getDayOfYear#

#if ENABLE_OVERLOADING
    DateTimeGetDayOfYearMethodInfo          ,
#endif
    dateTimeGetDayOfYear                    ,


-- ** getHour #method:getHour#

#if ENABLE_OVERLOADING
    DateTimeGetHourMethodInfo               ,
#endif
    dateTimeGetHour                         ,


-- ** getMicrosecond #method:getMicrosecond#

#if ENABLE_OVERLOADING
    DateTimeGetMicrosecondMethodInfo        ,
#endif
    dateTimeGetMicrosecond                  ,


-- ** getMinute #method:getMinute#

#if ENABLE_OVERLOADING
    DateTimeGetMinuteMethodInfo             ,
#endif
    dateTimeGetMinute                       ,


-- ** getMonth #method:getMonth#

#if ENABLE_OVERLOADING
    DateTimeGetMonthMethodInfo              ,
#endif
    dateTimeGetMonth                        ,


-- ** getSecond #method:getSecond#

#if ENABLE_OVERLOADING
    DateTimeGetSecondMethodInfo             ,
#endif
    dateTimeGetSecond                       ,


-- ** getSeconds #method:getSeconds#

#if ENABLE_OVERLOADING
    DateTimeGetSecondsMethodInfo            ,
#endif
    dateTimeGetSeconds                      ,


-- ** getTimezone #method:getTimezone#

#if ENABLE_OVERLOADING
    DateTimeGetTimezoneMethodInfo           ,
#endif
    dateTimeGetTimezone                     ,


-- ** getTimezoneAbbreviation #method:getTimezoneAbbreviation#

#if ENABLE_OVERLOADING
    DateTimeGetTimezoneAbbreviationMethodInfo,
#endif
    dateTimeGetTimezoneAbbreviation         ,


-- ** getUtcOffset #method:getUtcOffset#

#if ENABLE_OVERLOADING
    DateTimeGetUtcOffsetMethodInfo          ,
#endif
    dateTimeGetUtcOffset                    ,


-- ** getWeekNumberingYear #method:getWeekNumberingYear#

#if ENABLE_OVERLOADING
    DateTimeGetWeekNumberingYearMethodInfo  ,
#endif
    dateTimeGetWeekNumberingYear            ,


-- ** getWeekOfYear #method:getWeekOfYear#

#if ENABLE_OVERLOADING
    DateTimeGetWeekOfYearMethodInfo         ,
#endif
    dateTimeGetWeekOfYear                   ,


-- ** getYear #method:getYear#

#if ENABLE_OVERLOADING
    DateTimeGetYearMethodInfo               ,
#endif
    dateTimeGetYear                         ,


-- ** getYmd #method:getYmd#

#if ENABLE_OVERLOADING
    DateTimeGetYmdMethodInfo                ,
#endif
    dateTimeGetYmd                          ,


-- ** hash #method:hash#

    dateTimeHash                            ,


-- ** isDaylightSavings #method:isDaylightSavings#

#if ENABLE_OVERLOADING
    DateTimeIsDaylightSavingsMethodInfo     ,
#endif
    dateTimeIsDaylightSavings               ,


-- ** new #method:new#

    dateTimeNew                             ,


-- ** newFromIso8601 #method:newFromIso8601#

    dateTimeNewFromIso8601                  ,


-- ** newFromTimevalLocal #method:newFromTimevalLocal#

    dateTimeNewFromTimevalLocal             ,


-- ** newFromTimevalUtc #method:newFromTimevalUtc#

    dateTimeNewFromTimevalUtc               ,


-- ** newFromUnixLocal #method:newFromUnixLocal#

    dateTimeNewFromUnixLocal                ,


-- ** newFromUnixUtc #method:newFromUnixUtc#

    dateTimeNewFromUnixUtc                  ,


-- ** newLocal #method:newLocal#

    dateTimeNewLocal                        ,


-- ** newNow #method:newNow#

    dateTimeNewNow                          ,


-- ** newNowLocal #method:newNowLocal#

    dateTimeNewNowLocal                     ,


-- ** newNowUtc #method:newNowUtc#

    dateTimeNewNowUtc                       ,


-- ** newUtc #method:newUtc#

    dateTimeNewUtc                          ,


-- ** ref #method:ref#

#if ENABLE_OVERLOADING
    DateTimeRefMethodInfo                   ,
#endif
    dateTimeRef                             ,


-- ** toLocal #method:toLocal#

#if ENABLE_OVERLOADING
    DateTimeToLocalMethodInfo               ,
#endif
    dateTimeToLocal                         ,


-- ** toTimeval #method:toTimeval#

#if ENABLE_OVERLOADING
    DateTimeToTimevalMethodInfo             ,
#endif
    dateTimeToTimeval                       ,


-- ** toTimezone #method:toTimezone#

#if ENABLE_OVERLOADING
    DateTimeToTimezoneMethodInfo            ,
#endif
    dateTimeToTimezone                      ,


-- ** toUnix #method:toUnix#

#if ENABLE_OVERLOADING
    DateTimeToUnixMethodInfo                ,
#endif
    dateTimeToUnix                          ,


-- ** toUtc #method:toUtc#

#if ENABLE_OVERLOADING
    DateTimeToUtcMethodInfo                 ,
#endif
    dateTimeToUtc                           ,


-- ** unref #method:unref#

#if ENABLE_OVERLOADING
    DateTimeUnrefMethodInfo                 ,
#endif
    dateTimeUnref                           ,




    ) where

import Data.GI.Base.ShortPrelude
import qualified Data.GI.Base.ShortPrelude as SP
import qualified Data.GI.Base.Overloading as O
import qualified Prelude as P

import qualified Data.GI.Base.Attributes as GI.Attributes
import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GClosure as B.GClosure
import qualified Data.GI.Base.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GValue as B.GValue
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
import qualified Data.GI.Base.Properties as B.Properties
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP
import qualified GHC.OverloadedLabels as OL

import {-# SOURCE #-} qualified GI.GLib.Structs.TimeVal as GLib.TimeVal
import {-# SOURCE #-} qualified GI.GLib.Structs.TimeZone as GLib.TimeZone

-- | Memory-managed wrapper type.
newtype DateTime = DateTime (ManagedPtr DateTime)
foreign import ccall "g_date_time_get_type" c_g_date_time_get_type :: 
    IO GType

instance BoxedObject DateTime where
    boxedType _ = c_g_date_time_get_type

-- | A convenience alias for `Nothing` :: `Maybe` `DateTime`.
noDateTime :: Maybe DateTime
noDateTime = Nothing


#if ENABLE_OVERLOADING
instance O.HasAttributeList DateTime
type instance O.AttributeList DateTime = DateTimeAttributeList
type DateTimeAttributeList = ('[ ] :: [(Symbol, *)])
#endif

-- method DateTime::new
-- method type : Constructor
-- Args : [Arg {argCName = "tz", argType = TInterface (Name {namespace = "GLib", name = "TimeZone"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeZone", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "year", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the year component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "month", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the month component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "day", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the day component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "hour", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the hour component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "minute", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the minute component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "seconds", argType = TBasicType TDouble, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of seconds past the minute", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new" g_date_time_new :: 
    Ptr GLib.TimeZone.TimeZone ->           -- tz : TInterface (Name {namespace = "GLib", name = "TimeZone"})
    Int32 ->                                -- year : TBasicType TInt
    Int32 ->                                -- month : TBasicType TInt
    Int32 ->                                -- day : TBasicType TInt
    Int32 ->                                -- hour : TBasicType TInt
    Int32 ->                                -- minute : TBasicType TInt
    CDouble ->                              -- seconds : TBasicType TDouble
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given date and time in
the time zone /@tz@/.

The /@year@/ must be between 1 and 9999, /@month@/ between 1 and 12 and /@day@/
between 1 and 28, 29, 30 or 31 depending on the month and the year.

/@hour@/ must be between 0 and 23 and /@minute@/ must be between 0 and 59.

/@seconds@/ must be at least 0.0 and must be strictly less than 60.0.
It will be rounded down to the nearest microsecond.

If the given time is not representable in the given time zone (for
example, 02:30 on March 14th 2010 in Toronto, due to daylight savings
time) then the time will be rounded up to the nearest existing time
(in this case, 03:00).  If this matters to you then you should verify
the return value for containing the same as the numbers you gave.

In the case that the given time is ambiguous in the given time zone
(for example, 01:30 on November 7th 2010 in Toronto, due to daylight
savings time) then the time falling within standard (ie:
non-daylight) time is taken.

It not considered a programmer error for the values to this function
to be out of range, but in the case that they are, the function will
return 'Nothing'.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNew ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    GLib.TimeZone.TimeZone
    {- ^ /@tz@/: a 'GI.GLib.Structs.TimeZone.TimeZone' -}
    -> Int32
    {- ^ /@year@/: the year component of the date -}
    -> Int32
    {- ^ /@month@/: the month component of the date -}
    -> Int32
    {- ^ /@day@/: the day component of the date -}
    -> Int32
    {- ^ /@hour@/: the hour component of the date -}
    -> Int32
    {- ^ /@minute@/: the minute component of the date -}
    -> Double
    {- ^ /@seconds@/: the number of seconds past the minute -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNew tz year month day hour minute seconds = liftIO $ do
    tz' <- unsafeManagedPtrGetPtr tz
    let seconds' = realToFrac seconds
    result <- g_date_time_new tz' year month day hour minute seconds'
    checkUnexpectedReturnNULL "dateTimeNew" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr tz
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_from_iso8601
-- method type : Constructor
-- Args : [Arg {argCName = "text", argType = TBasicType TUTF8, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "an ISO 8601 formatted time string.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "default_tz", argType = TInterface (Name {namespace = "GLib", name = "TimeZone"}), direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "a #GTimeZone to use if the text doesn't contain a\n                         timezone, or %NULL.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_from_iso8601" g_date_time_new_from_iso8601 :: 
    CString ->                              -- text : TBasicType TUTF8
    Ptr GLib.TimeZone.TimeZone ->           -- default_tz : TInterface (Name {namespace = "GLib", name = "TimeZone"})
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given
<https://en.wikipedia.org/wiki/ISO_8601 ISO 8601 formatted string>
/@text@/. ISO 8601 strings of the form \<date>\<sep>\<time>\<tz> are supported.

\<sep> is the separator and can be either \'T\', \'t\' or \' \'.

\<date> is in the form:

* @YYYY-MM-DD@ - Year\/month\/day, e.g. 2016-08-24.
* @YYYYMMDD@ - Same as above without dividers.
* @YYYY-DDD@ - Ordinal day where DDD is from 001 to 366, e.g. 2016-237.
* @YYYYDDD@ - Same as above without dividers.
* @YYYY-Www-D@ - Week day where ww is from 01 to 52 and D from 1-7,
e.g. 2016-W34-3.
* @YYYYWwwD@ - Same as above without dividers.


\<time> is in the form:

* @hh:mm:ss(.sss)@ - Hours, minutes, seconds (subseconds), e.g. 22:10:42.123.
* @hhmmss(.sss)@ - Same as above without dividers.


\<tz> is an optional timezone suffix of the form:

* @Z@ - UTC.
* @+hh:mm@ or @-hh:mm@ - Offset from UTC in hours and minutes, e.g. +12:00.
* @+hh@ or @-hh@ - Offset from UTC in hours, e.g. +12.


If the timezone is not provided in /@text@/ it must be provided in /@defaultTz@/
(this field is otherwise ignored).

This call can fail (returning 'Nothing') if /@text@/ is not a valid ISO 8601
formatted string.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.56/
-}
dateTimeNewFromIso8601 ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    T.Text
    {- ^ /@text@/: an ISO 8601 formatted time string. -}
    -> Maybe (GLib.TimeZone.TimeZone)
    {- ^ /@defaultTz@/: a 'GI.GLib.Structs.TimeZone.TimeZone' to use if the text doesn\'t contain a
                         timezone, or 'Nothing'. -}
    -> m (Maybe DateTime)
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewFromIso8601 text defaultTz = liftIO $ do
    text' <- textToCString text
    maybeDefaultTz <- case defaultTz of
        Nothing -> return nullPtr
        Just jDefaultTz -> do
            jDefaultTz' <- unsafeManagedPtrGetPtr jDefaultTz
            return jDefaultTz'
    result <- g_date_time_new_from_iso8601 text' maybeDefaultTz
    maybeResult <- convertIfNonNull result $ \result' -> do
        result'' <- (wrapBoxed DateTime) result'
        return result''
    whenJust defaultTz touchManagedPtr
    freeMem text'
    return maybeResult

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_from_timeval_local
-- method type : Constructor
-- Args : [Arg {argCName = "tv", argType = TInterface (Name {namespace = "GLib", name = "TimeVal"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeVal", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_from_timeval_local" g_date_time_new_from_timeval_local :: 
    Ptr GLib.TimeVal.TimeVal ->             -- tv : TInterface (Name {namespace = "GLib", name = "TimeVal"})
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given 'GI.GLib.Structs.TimeVal.TimeVal' /@tv@/ in the
local time zone.

The time contained in a 'GI.GLib.Structs.TimeVal.TimeVal' is always stored in the form of
seconds elapsed since 1970-01-01 00:00:00 UTC, regardless of the
local time offset.

This call can fail (returning 'Nothing') if /@tv@/ represents a time outside
of the supported range of 'GI.GLib.Structs.DateTime.DateTime'.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNewFromTimevalLocal ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    GLib.TimeVal.TimeVal
    {- ^ /@tv@/: a 'GI.GLib.Structs.TimeVal.TimeVal' -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewFromTimevalLocal tv = liftIO $ do
    tv' <- unsafeManagedPtrGetPtr tv
    result <- g_date_time_new_from_timeval_local tv'
    checkUnexpectedReturnNULL "dateTimeNewFromTimevalLocal" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr tv
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_from_timeval_utc
-- method type : Constructor
-- Args : [Arg {argCName = "tv", argType = TInterface (Name {namespace = "GLib", name = "TimeVal"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeVal", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_from_timeval_utc" g_date_time_new_from_timeval_utc :: 
    Ptr GLib.TimeVal.TimeVal ->             -- tv : TInterface (Name {namespace = "GLib", name = "TimeVal"})
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given 'GI.GLib.Structs.TimeVal.TimeVal' /@tv@/ in UTC.

The time contained in a 'GI.GLib.Structs.TimeVal.TimeVal' is always stored in the form of
seconds elapsed since 1970-01-01 00:00:00 UTC.

This call can fail (returning 'Nothing') if /@tv@/ represents a time outside
of the supported range of 'GI.GLib.Structs.DateTime.DateTime'.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNewFromTimevalUtc ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    GLib.TimeVal.TimeVal
    {- ^ /@tv@/: a 'GI.GLib.Structs.TimeVal.TimeVal' -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewFromTimevalUtc tv = liftIO $ do
    tv' <- unsafeManagedPtrGetPtr tv
    result <- g_date_time_new_from_timeval_utc tv'
    checkUnexpectedReturnNULL "dateTimeNewFromTimevalUtc" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr tv
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_from_unix_local
-- method type : Constructor
-- Args : [Arg {argCName = "t", argType = TBasicType TInt64, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the Unix time", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_from_unix_local" g_date_time_new_from_unix_local :: 
    Int64 ->                                -- t : TBasicType TInt64
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given Unix time /@t@/ in the
local time zone.

Unix time is the number of seconds that have elapsed since 1970-01-01
00:00:00 UTC, regardless of the local time offset.

This call can fail (returning 'Nothing') if /@t@/ represents a time outside
of the supported range of 'GI.GLib.Structs.DateTime.DateTime'.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNewFromUnixLocal ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Int64
    {- ^ /@t@/: the Unix time -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewFromUnixLocal t = liftIO $ do
    result <- g_date_time_new_from_unix_local t
    checkUnexpectedReturnNULL "dateTimeNewFromUnixLocal" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_from_unix_utc
-- method type : Constructor
-- Args : [Arg {argCName = "t", argType = TBasicType TInt64, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the Unix time", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_from_unix_utc" g_date_time_new_from_unix_utc :: 
    Int64 ->                                -- t : TBasicType TInt64
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given Unix time /@t@/ in UTC.

Unix time is the number of seconds that have elapsed since 1970-01-01
00:00:00 UTC.

This call can fail (returning 'Nothing') if /@t@/ represents a time outside
of the supported range of 'GI.GLib.Structs.DateTime.DateTime'.

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNewFromUnixUtc ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Int64
    {- ^ /@t@/: the Unix time -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewFromUnixUtc t = liftIO $ do
    result <- g_date_time_new_from_unix_utc t
    checkUnexpectedReturnNULL "dateTimeNewFromUnixUtc" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_local
-- method type : Constructor
-- Args : [Arg {argCName = "year", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the year component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "month", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the month component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "day", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the day component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "hour", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the hour component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "minute", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the minute component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "seconds", argType = TBasicType TDouble, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of seconds past the minute", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_local" g_date_time_new_local :: 
    Int32 ->                                -- year : TBasicType TInt
    Int32 ->                                -- month : TBasicType TInt
    Int32 ->                                -- day : TBasicType TInt
    Int32 ->                                -- hour : TBasicType TInt
    Int32 ->                                -- minute : TBasicType TInt
    CDouble ->                              -- seconds : TBasicType TDouble
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given date and time in
the local time zone.

This call is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeNew' with the time
zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewLocal'.

/Since: 2.26/
-}
dateTimeNewLocal ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Int32
    {- ^ /@year@/: the year component of the date -}
    -> Int32
    {- ^ /@month@/: the month component of the date -}
    -> Int32
    {- ^ /@day@/: the day component of the date -}
    -> Int32
    {- ^ /@hour@/: the hour component of the date -}
    -> Int32
    {- ^ /@minute@/: the minute component of the date -}
    -> Double
    {- ^ /@seconds@/: the number of seconds past the minute -}
    -> m DateTime
    {- ^ __Returns:__ a 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewLocal year month day hour minute seconds = liftIO $ do
    let seconds' = realToFrac seconds
    result <- g_date_time_new_local year month day hour minute seconds'
    checkUnexpectedReturnNULL "dateTimeNewLocal" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_now
-- method type : Constructor
-- Args : [Arg {argCName = "tz", argType = TInterface (Name {namespace = "GLib", name = "TimeZone"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeZone", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_now" g_date_time_new_now :: 
    Ptr GLib.TimeZone.TimeZone ->           -- tz : TInterface (Name {namespace = "GLib", name = "TimeZone"})
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to this exact instant in the given
time zone /@tz@/.  The time is as accurate as the system allows, to a
maximum accuracy of 1 microsecond.

This function will always succeed unless the system clock is set to
truly insane values (or unless GLib is still being used after the
year 9999).

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeNewNow ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    GLib.TimeZone.TimeZone
    {- ^ /@tz@/: a 'GI.GLib.Structs.TimeZone.TimeZone' -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewNow tz = liftIO $ do
    tz' <- unsafeManagedPtrGetPtr tz
    result <- g_date_time_new_now tz'
    checkUnexpectedReturnNULL "dateTimeNewNow" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr tz
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_now_local
-- method type : Constructor
-- Args : []
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_now_local" g_date_time_new_now_local :: 
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to this exact instant in the local
time zone.

This is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeNewNow' with the time
zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewLocal'.

/Since: 2.26/
-}
dateTimeNewNowLocal ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewNowLocal  = liftIO $ do
    result <- g_date_time_new_now_local
    checkUnexpectedReturnNULL "dateTimeNewNowLocal" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_now_utc
-- method type : Constructor
-- Args : []
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_now_utc" g_date_time_new_now_utc :: 
    IO (Ptr DateTime)

{- |
Creates a 'GI.GLib.Structs.DateTime.DateTime' corresponding to this exact instant in UTC.

This is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeNewNow' with the time
zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewUtc'.

/Since: 2.26/
-}
dateTimeNewNowUtc ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewNowUtc  = liftIO $ do
    result <- g_date_time_new_now_utc
    checkUnexpectedReturnNULL "dateTimeNewNowUtc" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::new_utc
-- method type : Constructor
-- Args : [Arg {argCName = "year", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the year component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "month", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the month component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "day", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the day component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "hour", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the hour component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "minute", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the minute component of the date", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "seconds", argType = TBasicType TDouble, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of seconds past the minute", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_new_utc" g_date_time_new_utc :: 
    Int32 ->                                -- year : TBasicType TInt
    Int32 ->                                -- month : TBasicType TInt
    Int32 ->                                -- day : TBasicType TInt
    Int32 ->                                -- hour : TBasicType TInt
    Int32 ->                                -- minute : TBasicType TInt
    CDouble ->                              -- seconds : TBasicType TDouble
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the given date and time in
UTC.

This call is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeNew' with the time
zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewUtc'.

/Since: 2.26/
-}
dateTimeNewUtc ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Int32
    {- ^ /@year@/: the year component of the date -}
    -> Int32
    {- ^ /@month@/: the month component of the date -}
    -> Int32
    {- ^ /@day@/: the day component of the date -}
    -> Int32
    {- ^ /@hour@/: the hour component of the date -}
    -> Int32
    {- ^ /@minute@/: the minute component of the date -}
    -> Double
    {- ^ /@seconds@/: the number of seconds past the minute -}
    -> m DateTime
    {- ^ __Returns:__ a 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeNewUtc year month day hour minute seconds = liftIO $ do
    let seconds' = realToFrac seconds
    result <- g_date_time_new_utc year month day hour minute seconds'
    checkUnexpectedReturnNULL "dateTimeNewUtc" result
    result' <- (wrapBoxed DateTime) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::add
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "timespan", argType = TBasicType TInt64, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeSpan", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add" g_date_time_add :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int64 ->                                -- timespan : TBasicType TInt64
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified timespan to the copy.

/Since: 2.26/
-}
dateTimeAdd ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int64
    {- ^ /@timespan@/: a @/GTimeSpan/@ -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAdd datetime timespan = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add datetime' timespan
    checkUnexpectedReturnNULL "dateTimeAdd" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddMethodInfo
instance (signature ~ (Int64 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAdd

#endif

-- method DateTime::add_days
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "days", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of days", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_days" g_date_time_add_days :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- days : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of days to the
copy. Add negative values to subtract days.

/Since: 2.26/
-}
dateTimeAddDays ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@days@/: the number of days -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddDays datetime days = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_days datetime' days
    checkUnexpectedReturnNULL "dateTimeAddDays" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddDaysMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddDaysMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddDays

#endif

-- method DateTime::add_full
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "years", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of years to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "months", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of months to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "days", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of days to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "hours", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of hours to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "minutes", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of minutes to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "seconds", argType = TBasicType TDouble, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of seconds to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_full" g_date_time_add_full :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- years : TBasicType TInt
    Int32 ->                                -- months : TBasicType TInt
    Int32 ->                                -- days : TBasicType TInt
    Int32 ->                                -- hours : TBasicType TInt
    Int32 ->                                -- minutes : TBasicType TInt
    CDouble ->                              -- seconds : TBasicType TDouble
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' adding the specified values to the current date and
time in /@datetime@/. Add negative values to subtract.

/Since: 2.26/
-}
dateTimeAddFull ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@years@/: the number of years to add -}
    -> Int32
    {- ^ /@months@/: the number of months to add -}
    -> Int32
    {- ^ /@days@/: the number of days to add -}
    -> Int32
    {- ^ /@hours@/: the number of hours to add -}
    -> Int32
    {- ^ /@minutes@/: the number of minutes to add -}
    -> Double
    {- ^ /@seconds@/: the number of seconds to add -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' that should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddFull datetime years months days hours minutes seconds = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    let seconds' = realToFrac seconds
    result <- g_date_time_add_full datetime' years months days hours minutes seconds'
    checkUnexpectedReturnNULL "dateTimeAddFull" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddFullMethodInfo
instance (signature ~ (Int32 -> Int32 -> Int32 -> Int32 -> Int32 -> Double -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddFullMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddFull

#endif

-- method DateTime::add_hours
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "hours", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of hours to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_hours" g_date_time_add_hours :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- hours : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of hours.
Add negative values to subtract hours.

/Since: 2.26/
-}
dateTimeAddHours ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@hours@/: the number of hours to add -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddHours datetime hours = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_hours datetime' hours
    checkUnexpectedReturnNULL "dateTimeAddHours" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddHoursMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddHoursMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddHours

#endif

-- method DateTime::add_minutes
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "minutes", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of minutes to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_minutes" g_date_time_add_minutes :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- minutes : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ adding the specified number of minutes.
Add negative values to subtract minutes.

/Since: 2.26/
-}
dateTimeAddMinutes ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@minutes@/: the number of minutes to add -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddMinutes datetime minutes = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_minutes datetime' minutes
    checkUnexpectedReturnNULL "dateTimeAddMinutes" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddMinutesMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddMinutesMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddMinutes

#endif

-- method DateTime::add_months
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "months", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of months", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_months" g_date_time_add_months :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- months : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of months to the
copy. Add negative values to subtract months.

The day of the month of the resulting 'GI.GLib.Structs.DateTime.DateTime' is clamped to the number
of days in the updated calendar month. For example, if adding 1 month to
31st January 2018, the result would be 28th February 2018. In 2020 (a leap
year), the result would be 29th February.

/Since: 2.26/
-}
dateTimeAddMonths ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@months@/: the number of months -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddMonths datetime months = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_months datetime' months
    checkUnexpectedReturnNULL "dateTimeAddMonths" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddMonthsMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddMonthsMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddMonths

#endif

-- method DateTime::add_seconds
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "seconds", argType = TBasicType TDouble, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of seconds to add", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_seconds" g_date_time_add_seconds :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    CDouble ->                              -- seconds : TBasicType TDouble
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of seconds.
Add negative values to subtract seconds.

/Since: 2.26/
-}
dateTimeAddSeconds ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Double
    {- ^ /@seconds@/: the number of seconds to add -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddSeconds datetime seconds = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    let seconds' = realToFrac seconds
    result <- g_date_time_add_seconds datetime' seconds'
    checkUnexpectedReturnNULL "dateTimeAddSeconds" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddSecondsMethodInfo
instance (signature ~ (Double -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddSecondsMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddSeconds

#endif

-- method DateTime::add_weeks
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "weeks", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of weeks", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_weeks" g_date_time_add_weeks :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- weeks : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of weeks to the
copy. Add negative values to subtract weeks.

/Since: 2.26/
-}
dateTimeAddWeeks ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@weeks@/: the number of weeks -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddWeeks datetime weeks = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_weeks datetime' weeks
    checkUnexpectedReturnNULL "dateTimeAddWeeks" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddWeeksMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddWeeksMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddWeeks

#endif

-- method DateTime::add_years
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "years", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the number of years", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_add_years" g_date_time_add_years :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Int32 ->                                -- years : TBasicType TInt
    IO (Ptr DateTime)

{- |
Creates a copy of /@datetime@/ and adds the specified number of years to the
copy. Add negative values to subtract years.

As with 'GI.GLib.Structs.DateTime.dateTimeAddMonths', if the resulting date would be 29th
February on a non-leap year, the day will be clamped to 28th February.

/Since: 2.26/
-}
dateTimeAddYears ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Int32
    {- ^ /@years@/: the number of years -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' which should be freed with
  'GI.GLib.Structs.DateTime.dateTimeUnref'. -}
dateTimeAddYears datetime years = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_add_years datetime' years
    checkUnexpectedReturnNULL "dateTimeAddYears" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeAddYearsMethodInfo
instance (signature ~ (Int32 -> m DateTime), MonadIO m) => O.MethodInfo DateTimeAddYearsMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeAddYears

#endif

-- method DateTime::difference
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "end", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "begin", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt64)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_difference" g_date_time_difference :: 
    Ptr DateTime ->                         -- end : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Ptr DateTime ->                         -- begin : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int64

{- |
Calculates the difference in time between /@end@/ and /@begin@/.  The
@/GTimeSpan/@ that is returned is effectively /@end@/ - /@begin@/ (ie:
positive if the first parameter is larger).

/Since: 2.26/
-}
dateTimeDifference ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@end@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> DateTime
    {- ^ /@begin@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int64
    {- ^ __Returns:__ the difference between the two 'GI.GLib.Structs.DateTime.DateTime', as a time
  span expressed in microseconds. -}
dateTimeDifference end begin = liftIO $ do
    end' <- unsafeManagedPtrGetPtr end
    begin' <- unsafeManagedPtrGetPtr begin
    result <- g_date_time_difference end' begin'
    touchManagedPtr end
    touchManagedPtr begin
    return result

#if ENABLE_OVERLOADING
data DateTimeDifferenceMethodInfo
instance (signature ~ (DateTime -> m Int64), MonadIO m) => O.MethodInfo DateTimeDifferenceMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeDifference

#endif

-- method DateTime::format
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "format", argType = TBasicType TUTF8, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a valid UTF-8 string, containing the format for the\n         #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TUTF8)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_format" g_date_time_format :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    CString ->                              -- format : TBasicType TUTF8
    IO CString

{- |
Creates a newly allocated string representing the requested /@format@/.

The format strings understood by this function are a subset of the
@/strftime()/@ format language as specified by C99.  The %D, %U and %W
conversions are not supported, nor is the \'E\' modifier.  The GNU
extensions %k, %l, %s and %P are supported, however, as are the
\'0\', \'_\' and \'-\' modifiers.

In contrast to @/strftime()/@, this function always produces a UTF-8
string, regardless of the current locale.  Note that the rendering of
many formats is locale-dependent and may not match the @/strftime()/@
output exactly.

The following format specifiers are supported:

* %a: the abbreviated weekday name according to the current locale
* %A: the full weekday name according to the current locale
* %b: the abbreviated month name according to the current locale
* %B: the full month name according to the current locale
* %c: the preferred date and time representation for the current locale
* %C: the century number (year\/100) as a 2-digit integer (00-99)
* %d: the day of the month as a decimal number (range 01 to 31)
* %e: the day of the month as a decimal number (range  1 to 31)
* %F: equivalent to @%Y-%m-%d@ (the ISO 8601 date format)
* %g: the last two digits of the ISO 8601 week-based year as a
decimal number (00-99). This works well with %V and %u.
* %G: the ISO 8601 week-based year as a decimal number. This works
well with %V and %u.
* %h: equivalent to %b
* %H: the hour as a decimal number using a 24-hour clock (range 00 to 23)
* %I: the hour as a decimal number using a 12-hour clock (range 01 to 12)
* %j: the day of the year as a decimal number (range 001 to 366)
* %k: the hour (24-hour clock) as a decimal number (range 0 to 23);
single digits are preceded by a blank
* %l: the hour (12-hour clock) as a decimal number (range 1 to 12);
single digits are preceded by a blank
* %m: the month as a decimal number (range 01 to 12)
* %M: the minute as a decimal number (range 00 to 59)
* %p: either \"AM\" or \"PM\" according to the given time value, or the
corresponding  strings for the current locale.  Noon is treated as
\"PM\" and midnight as \"AM\".
* %P: like %p but lowercase: \"am\" or \"pm\" or a corresponding string for
the current locale
* %r: the time in a.m. or p.m. notation
* %R: the time in 24-hour notation (%H:%M)
* %s: the number of seconds since the Epoch, that is, since 1970-01-01
00:00:00 UTC
* %S: the second as a decimal number (range 00 to 60)
* %t: a tab character
* %T: the time in 24-hour notation with seconds (%H:%M:%S)
* %u: the ISO 8601 standard day of the week as a decimal, range 1 to 7,
 Monday being 1. This works well with %G and %V.
* %V: the ISO 8601 standard week number of the current year as a decimal
number, range 01 to 53, where week 1 is the first week that has at
least 4 days in the new year. See 'GI.GLib.Structs.DateTime.dateTimeGetWeekOfYear'.
This works well with %G and %u.
* %w: the day of the week as a decimal, range 0 to 6, Sunday being 0.
This is not the ISO 8601 standard format -- use %u instead.
* %x: the preferred date representation for the current locale without
the time
* %X: the preferred time representation for the current locale without
the date
* %y: the year as a decimal number without the century
* %Y: the year as a decimal number including the century
* %z: the time zone as an offset from UTC (+hhmm)
* %:z: the time zone as an offset from UTC (+hh:mm).
This is a gnulib @/strftime()/@ extension. Since: 2.38
* %::z: the time zone as an offset from UTC (+hh:mm:ss). This is a
gnulib @/strftime()/@ extension. Since: 2.38
* %:::z: the time zone as an offset from UTC, with : to necessary
precision (e.g., -04, +05:30). This is a gnulib @/strftime()/@ extension. Since: 2.38
* %Z: the time zone or name or abbreviation
* %%: a literal % character


Some conversion specifications can be modified by preceding the
conversion specifier by one or more modifier characters. The
following modifiers are supported for many of the numeric
conversions:

* O: Use alternative numeric symbols, if the current locale supports those.
* _: Pad a numeric result with spaces. This overrides the default padding
for the specifier.
* -: Do not pad a numeric result. This overrides the default padding
for the specifier.
* 0: Pad a numeric result with zeros. This overrides the default padding
for the specifier.


Additionally, when O is used with B, b, or h, it produces the alternative
form of a month name. The alternative form should be used when the month
name is used without a day number (e.g., standalone). It is required in
some languages (Baltic, Slavic, Greek, and more) due to their grammatical
rules. For other languages there is no difference. %OB is a GNU and BSD
@/strftime()/@ extension expected to be added to the future POSIX specification,
%Ob and %Oh are GNU @/strftime()/@ extensions. Since: 2.56

/Since: 2.26/
-}
dateTimeFormat ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: A 'GI.GLib.Structs.DateTime.DateTime' -}
    -> T.Text
    {- ^ /@format@/: a valid UTF-8 string, containing the format for the
         'GI.GLib.Structs.DateTime.DateTime' -}
    -> m T.Text
    {- ^ __Returns:__ a newly allocated string formatted to the requested format
    or 'Nothing' in the case that there was an error (such as a format specifier
    not being supported in the current locale). The string
    should be freed with 'GI.GLib.Functions.free'. -}
dateTimeFormat datetime format = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    format' <- textToCString format
    result <- g_date_time_format datetime' format'
    checkUnexpectedReturnNULL "dateTimeFormat" result
    result' <- cstringToText result
    freeMem result
    touchManagedPtr datetime
    freeMem format'
    return result'

#if ENABLE_OVERLOADING
data DateTimeFormatMethodInfo
instance (signature ~ (T.Text -> m T.Text), MonadIO m) => O.MethodInfo DateTimeFormatMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeFormat

#endif

-- method DateTime::get_day_of_month
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_day_of_month" g_date_time_get_day_of_month :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the day of the month represented by /@datetime@/ in the gregorian
calendar.

/Since: 2.26/
-}
dateTimeGetDayOfMonth ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the day of the month -}
dateTimeGetDayOfMonth datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_day_of_month datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetDayOfMonthMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetDayOfMonthMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetDayOfMonth

#endif

-- method DateTime::get_day_of_week
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_day_of_week" g_date_time_get_day_of_week :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the ISO 8601 day of the week on which /@datetime@/ falls (1 is
Monday, 2 is Tuesday... 7 is Sunday).

/Since: 2.26/
-}
dateTimeGetDayOfWeek ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the day of the week -}
dateTimeGetDayOfWeek datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_day_of_week datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetDayOfWeekMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetDayOfWeekMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetDayOfWeek

#endif

-- method DateTime::get_day_of_year
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_day_of_year" g_date_time_get_day_of_year :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the day of the year represented by /@datetime@/ in the Gregorian
calendar.

/Since: 2.26/
-}
dateTimeGetDayOfYear ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the day of the year -}
dateTimeGetDayOfYear datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_day_of_year datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetDayOfYearMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetDayOfYearMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetDayOfYear

#endif

-- method DateTime::get_hour
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_hour" g_date_time_get_hour :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the hour of the day represented by /@datetime@/

/Since: 2.26/
-}
dateTimeGetHour ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the hour of the day -}
dateTimeGetHour datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_hour datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetHourMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetHourMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetHour

#endif

-- method DateTime::get_microsecond
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_microsecond" g_date_time_get_microsecond :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the microsecond of the date represented by /@datetime@/

/Since: 2.26/
-}
dateTimeGetMicrosecond ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the microsecond of the second -}
dateTimeGetMicrosecond datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_microsecond datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetMicrosecondMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetMicrosecondMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetMicrosecond

#endif

-- method DateTime::get_minute
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_minute" g_date_time_get_minute :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the minute of the hour represented by /@datetime@/

/Since: 2.26/
-}
dateTimeGetMinute ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the minute of the hour -}
dateTimeGetMinute datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_minute datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetMinuteMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetMinuteMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetMinute

#endif

-- method DateTime::get_month
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_month" g_date_time_get_month :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the month of the year represented by /@datetime@/ in the Gregorian
calendar.

/Since: 2.26/
-}
dateTimeGetMonth ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the month represented by /@datetime@/ -}
dateTimeGetMonth datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_month datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetMonthMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetMonthMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetMonth

#endif

-- method DateTime::get_second
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_second" g_date_time_get_second :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the second of the minute represented by /@datetime@/

/Since: 2.26/
-}
dateTimeGetSecond ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the second represented by /@datetime@/ -}
dateTimeGetSecond datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_second datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetSecondMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetSecondMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetSecond

#endif

-- method DateTime::get_seconds
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TDouble)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_seconds" g_date_time_get_seconds :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO CDouble

{- |
Retrieves the number of seconds since the start of the last minute,
including the fractional part.

/Since: 2.26/
-}
dateTimeGetSeconds ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Double
    {- ^ __Returns:__ the number of seconds -}
dateTimeGetSeconds datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_seconds datetime'
    let result' = realToFrac result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeGetSecondsMethodInfo
instance (signature ~ (m Double), MonadIO m) => O.MethodInfo DateTimeGetSecondsMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetSeconds

#endif

-- method DateTime::get_timezone
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "TimeZone"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_timezone" g_date_time_get_timezone :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO (Ptr GLib.TimeZone.TimeZone)

{- |
Get the time zone for this /@datetime@/.

/Since: 2.58/
-}
dateTimeGetTimezone ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m GLib.TimeZone.TimeZone
    {- ^ __Returns:__ the time zone -}
dateTimeGetTimezone datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_timezone datetime'
    checkUnexpectedReturnNULL "dateTimeGetTimezone" result
    result' <- (newBoxed GLib.TimeZone.TimeZone) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeGetTimezoneMethodInfo
instance (signature ~ (m GLib.TimeZone.TimeZone), MonadIO m) => O.MethodInfo DateTimeGetTimezoneMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetTimezone

#endif

-- method DateTime::get_timezone_abbreviation
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TUTF8)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_timezone_abbreviation" g_date_time_get_timezone_abbreviation :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO CString

{- |
Determines the time zone abbreviation to be used at the time and in
the time zone of /@datetime@/.

For example, in Toronto this is currently \"EST\" during the winter
months and \"EDT\" during the summer months when daylight savings
time is in effect.

/Since: 2.26/
-}
dateTimeGetTimezoneAbbreviation ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m T.Text
    {- ^ __Returns:__ the time zone abbreviation. The returned
         string is owned by the 'GI.GLib.Structs.DateTime.DateTime' and it should not be
         modified or freed -}
dateTimeGetTimezoneAbbreviation datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_timezone_abbreviation datetime'
    checkUnexpectedReturnNULL "dateTimeGetTimezoneAbbreviation" result
    result' <- cstringToText result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeGetTimezoneAbbreviationMethodInfo
instance (signature ~ (m T.Text), MonadIO m) => O.MethodInfo DateTimeGetTimezoneAbbreviationMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetTimezoneAbbreviation

#endif

-- method DateTime::get_utc_offset
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt64)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_utc_offset" g_date_time_get_utc_offset :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int64

{- |
Determines the offset to UTC in effect at the time and in the time
zone of /@datetime@/.

The offset is the number of microseconds that you add to UTC time to
arrive at local time for the time zone (ie: negative numbers for time
zones west of GMT, positive numbers for east).

If /@datetime@/ represents UTC time, then the offset is always zero.

/Since: 2.26/
-}
dateTimeGetUtcOffset ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int64
    {- ^ __Returns:__ the number of microseconds that should be added to UTC to
         get the local time -}
dateTimeGetUtcOffset datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_utc_offset datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetUtcOffsetMethodInfo
instance (signature ~ (m Int64), MonadIO m) => O.MethodInfo DateTimeGetUtcOffsetMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetUtcOffset

#endif

-- method DateTime::get_week_numbering_year
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_week_numbering_year" g_date_time_get_week_numbering_year :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Returns the ISO 8601 week-numbering year in which the week containing
/@datetime@/ falls.

This function, taken together with 'GI.GLib.Structs.DateTime.dateTimeGetWeekOfYear' and
'GI.GLib.Structs.DateTime.dateTimeGetDayOfWeek' can be used to determine the full ISO
week date on which /@datetime@/ falls.

This is usually equal to the normal Gregorian year (as returned by
'GI.GLib.Structs.DateTime.dateTimeGetYear'), except as detailed below:

For Thursday, the week-numbering year is always equal to the usual
calendar year.  For other days, the number is such that every day
within a complete week (Monday to Sunday) is contained within the
same week-numbering year.

For Monday, Tuesday and Wednesday occurring near the end of the year,
this may mean that the week-numbering year is one greater than the
calendar year (so that these days have the same week-numbering year
as the Thursday occurring early in the next year).

For Friday, Saturday and Sunday occurring near the start of the year,
this may mean that the week-numbering year is one less than the
calendar year (so that these days have the same week-numbering year
as the Thursday occurring late in the previous year).

An equivalent description is that the week-numbering year is equal to
the calendar year containing the majority of the days in the current
week (Monday to Sunday).

Note that January 1 0001 in the proleptic Gregorian calendar is a
Monday, so this function never returns 0.

/Since: 2.26/
-}
dateTimeGetWeekNumberingYear ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the ISO 8601 week-numbering year for /@datetime@/ -}
dateTimeGetWeekNumberingYear datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_week_numbering_year datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetWeekNumberingYearMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetWeekNumberingYearMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetWeekNumberingYear

#endif

-- method DateTime::get_week_of_year
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_week_of_year" g_date_time_get_week_of_year :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Returns the ISO 8601 week number for the week containing /@datetime@/.
The ISO 8601 week number is the same for every day of the week (from
Moday through Sunday).  That can produce some unusual results
(described below).

The first week of the year is week 1.  This is the week that contains
the first Thursday of the year.  Equivalently, this is the first week
that has more than 4 of its days falling within the calendar year.

The value 0 is never returned by this function.  Days contained
within a year but occurring before the first ISO 8601 week of that
year are considered as being contained in the last week of the
previous year.  Similarly, the final days of a calendar year may be
considered as being part of the first ISO 8601 week of the next year
if 4 or more days of that week are contained within the new year.

/Since: 2.26/
-}
dateTimeGetWeekOfYear ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the ISO 8601 week number for /@datetime@/. -}
dateTimeGetWeekOfYear datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_week_of_year datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetWeekOfYearMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetWeekOfYearMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetWeekOfYear

#endif

-- method DateTime::get_year
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_year" g_date_time_get_year :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int32

{- |
Retrieves the year represented by /@datetime@/ in the Gregorian calendar.

/Since: 2.26/
-}
dateTimeGetYear ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: A 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int32
    {- ^ __Returns:__ the year represented by /@datetime@/ -}
dateTimeGetYear datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_get_year datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeGetYearMethodInfo
instance (signature ~ (m Int32), MonadIO m) => O.MethodInfo DateTimeGetYearMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetYear

#endif

-- method DateTime::get_ymd
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "year", argType = TBasicType TInt, direction = DirectionOut, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the return location for the gregorian year, or %NULL.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything},Arg {argCName = "month", argType = TBasicType TInt, direction = DirectionOut, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the return location for the month of the year, or %NULL.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything},Arg {argCName = "day", argType = TBasicType TInt, direction = DirectionOut, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the return location for the day of the month, or %NULL.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_get_ymd" g_date_time_get_ymd :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Ptr Int32 ->                            -- year : TBasicType TInt
    Ptr Int32 ->                            -- month : TBasicType TInt
    Ptr Int32 ->                            -- day : TBasicType TInt
    IO ()

{- |
Retrieves the Gregorian day, month, and year of a given 'GI.GLib.Structs.DateTime.DateTime'.

/Since: 2.26/
-}
dateTimeGetYmd ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime'. -}
    -> m ((Int32, Int32, Int32))
dateTimeGetYmd datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    year <- allocMem :: IO (Ptr Int32)
    month <- allocMem :: IO (Ptr Int32)
    day <- allocMem :: IO (Ptr Int32)
    g_date_time_get_ymd datetime' year month day
    year' <- peek year
    month' <- peek month
    day' <- peek day
    touchManagedPtr datetime
    freeMem year
    freeMem month
    freeMem day
    return (year', month', day')

#if ENABLE_OVERLOADING
data DateTimeGetYmdMethodInfo
instance (signature ~ (m ((Int32, Int32, Int32))), MonadIO m) => O.MethodInfo DateTimeGetYmdMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeGetYmd

#endif

-- method DateTime::is_daylight_savings
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TBoolean)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_is_daylight_savings" g_date_time_is_daylight_savings :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO CInt

{- |
Determines if daylight savings time is in effect at the time and in
the time zone of /@datetime@/.

/Since: 2.26/
-}
dateTimeIsDaylightSavings ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Bool
    {- ^ __Returns:__ 'True' if daylight savings time is in effect -}
dateTimeIsDaylightSavings datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_is_daylight_savings datetime'
    let result' = (/= 0) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeIsDaylightSavingsMethodInfo
instance (signature ~ (m Bool), MonadIO m) => O.MethodInfo DateTimeIsDaylightSavingsMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeIsDaylightSavings

#endif

-- method DateTime::ref
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_ref" g_date_time_ref :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO (Ptr DateTime)

{- |
Atomically increments the reference count of /@datetime@/ by one.

/Since: 2.26/
-}
dateTimeRef ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m DateTime
    {- ^ __Returns:__ the 'GI.GLib.Structs.DateTime.DateTime' with the reference count increased -}
dateTimeRef datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_ref datetime'
    checkUnexpectedReturnNULL "dateTimeRef" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeRefMethodInfo
instance (signature ~ (m DateTime), MonadIO m) => O.MethodInfo DateTimeRefMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeRef

#endif

-- method DateTime::to_local
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_to_local" g_date_time_to_local :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the same instant in time as
/@datetime@/, but in the local time zone.

This call is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeToTimezone' with the
time zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewLocal'.

/Since: 2.26/
-}
dateTimeToLocal ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' -}
dateTimeToLocal datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_to_local datetime'
    checkUnexpectedReturnNULL "dateTimeToLocal" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeToLocalMethodInfo
instance (signature ~ (m DateTime), MonadIO m) => O.MethodInfo DateTimeToLocalMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeToLocal

#endif

-- method DateTime::to_timeval
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "tv", argType = TInterface (Name {namespace = "GLib", name = "TimeVal"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GTimeVal to modify", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TBoolean)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_to_timeval" g_date_time_to_timeval :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Ptr GLib.TimeVal.TimeVal ->             -- tv : TInterface (Name {namespace = "GLib", name = "TimeVal"})
    IO CInt

{- |
Stores the instant in time that /@datetime@/ represents into /@tv@/.

The time contained in a 'GI.GLib.Structs.TimeVal.TimeVal' is always stored in the form of
seconds elapsed since 1970-01-01 00:00:00 UTC, regardless of the time
zone associated with /@datetime@/.

On systems where \'long\' is 32bit (ie: all 32bit systems and all
Windows systems), a 'GI.GLib.Structs.TimeVal.TimeVal' is incapable of storing the entire
range of values that 'GI.GLib.Structs.DateTime.DateTime' is capable of expressing.  On those
systems, this function returns 'False' to indicate that the time is
out of range.

On systems where \'long\' is 64bit, this function never fails.

/Since: 2.26/
-}
dateTimeToTimeval ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> GLib.TimeVal.TimeVal
    {- ^ /@tv@/: a 'GI.GLib.Structs.TimeVal.TimeVal' to modify -}
    -> m Bool
    {- ^ __Returns:__ 'True' if successful, else 'False' -}
dateTimeToTimeval datetime tv = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    tv' <- unsafeManagedPtrGetPtr tv
    result <- g_date_time_to_timeval datetime' tv'
    let result' = (/= 0) result
    touchManagedPtr datetime
    touchManagedPtr tv
    return result'

#if ENABLE_OVERLOADING
data DateTimeToTimevalMethodInfo
instance (signature ~ (GLib.TimeVal.TimeVal -> m Bool), MonadIO m) => O.MethodInfo DateTimeToTimevalMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeToTimeval

#endif

-- method DateTime::to_timezone
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "tz", argType = TInterface (Name {namespace = "GLib", name = "TimeZone"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the new #GTimeZone", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_to_timezone" g_date_time_to_timezone :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    Ptr GLib.TimeZone.TimeZone ->           -- tz : TInterface (Name {namespace = "GLib", name = "TimeZone"})
    IO (Ptr DateTime)

{- |
Create a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the same instant in time as
/@datetime@/, but in the time zone /@tz@/.

This call can fail in the case that the time goes out of bounds.  For
example, converting 0001-01-01 00:00:00 UTC to a time zone west of
Greenwich will fail (due to the year 0 being out of range).

You should release the return value by calling 'GI.GLib.Structs.DateTime.dateTimeUnref'
when you are done with it.

/Since: 2.26/
-}
dateTimeToTimezone ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> GLib.TimeZone.TimeZone
    {- ^ /@tz@/: the new 'GI.GLib.Structs.TimeZone.TimeZone' -}
    -> m DateTime
    {- ^ __Returns:__ a new 'GI.GLib.Structs.DateTime.DateTime', or 'Nothing' -}
dateTimeToTimezone datetime tz = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    tz' <- unsafeManagedPtrGetPtr tz
    result <- g_date_time_to_timezone datetime' tz'
    checkUnexpectedReturnNULL "dateTimeToTimezone" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    touchManagedPtr tz
    return result'

#if ENABLE_OVERLOADING
data DateTimeToTimezoneMethodInfo
instance (signature ~ (GLib.TimeZone.TimeZone -> m DateTime), MonadIO m) => O.MethodInfo DateTimeToTimezoneMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeToTimezone

#endif

-- method DateTime::to_unix
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt64)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_to_unix" g_date_time_to_unix :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO Int64

{- |
Gives the Unix time corresponding to /@datetime@/, rounding down to the
nearest second.

Unix time is the number of seconds that have elapsed since 1970-01-01
00:00:00 UTC, regardless of the time zone associated with /@datetime@/.

/Since: 2.26/
-}
dateTimeToUnix ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Int64
    {- ^ __Returns:__ the Unix time corresponding to /@datetime@/ -}
dateTimeToUnix datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_to_unix datetime'
    touchManagedPtr datetime
    return result

#if ENABLE_OVERLOADING
data DateTimeToUnixMethodInfo
instance (signature ~ (m Int64), MonadIO m) => O.MethodInfo DateTimeToUnixMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeToUnix

#endif

-- method DateTime::to_utc
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "GLib", name = "DateTime"}))
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_to_utc" g_date_time_to_utc :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO (Ptr DateTime)

{- |
Creates a new 'GI.GLib.Structs.DateTime.DateTime' corresponding to the same instant in time as
/@datetime@/, but in UTC.

This call is equivalent to calling 'GI.GLib.Structs.DateTime.dateTimeToTimezone' with the
time zone returned by 'GI.GLib.Structs.TimeZone.timeZoneNewUtc'.

/Since: 2.26/
-}
dateTimeToUtc ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m DateTime
    {- ^ __Returns:__ the newly created 'GI.GLib.Structs.DateTime.DateTime' -}
dateTimeToUtc datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    result <- g_date_time_to_utc datetime'
    checkUnexpectedReturnNULL "dateTimeToUtc" result
    result' <- (wrapBoxed DateTime) result
    touchManagedPtr datetime
    return result'

#if ENABLE_OVERLOADING
data DateTimeToUtcMethodInfo
instance (signature ~ (m DateTime), MonadIO m) => O.MethodInfo DateTimeToUtcMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeToUtc

#endif

-- method DateTime::unref
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "datetime", argType = TInterface (Name {namespace = "GLib", name = "DateTime"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_unref" g_date_time_unref :: 
    Ptr DateTime ->                         -- datetime : TInterface (Name {namespace = "GLib", name = "DateTime"})
    IO ()

{- |
Atomically decrements the reference count of /@datetime@/ by one.

When the reference count reaches zero, the resources allocated by
/@datetime@/ are freed

/Since: 2.26/
-}
dateTimeUnref ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    DateTime
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m ()
dateTimeUnref datetime = liftIO $ do
    datetime' <- unsafeManagedPtrGetPtr datetime
    g_date_time_unref datetime'
    touchManagedPtr datetime
    return ()

#if ENABLE_OVERLOADING
data DateTimeUnrefMethodInfo
instance (signature ~ (m ()), MonadIO m) => O.MethodInfo DateTimeUnrefMethodInfo DateTime signature where
    overloadedMethod _ = dateTimeUnref

#endif

-- method DateTime::compare
-- method type : MemberFunction
-- Args : [Arg {argCName = "dt1", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "first #GDateTime to compare", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "dt2", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "second #GDateTime to compare", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_compare" g_date_time_compare :: 
    Ptr () ->                               -- dt1 : TBasicType TPtr
    Ptr () ->                               -- dt2 : TBasicType TPtr
    IO Int32

{- |
A comparison function for @/GDateTimes/@ that is suitable
as a 'GI.GLib.Callbacks.CompareFunc'. Both @/GDateTimes/@ must be non-'Nothing'.

/Since: 2.26/
-}
dateTimeCompare ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Ptr ()
    {- ^ /@dt1@/: first 'GI.GLib.Structs.DateTime.DateTime' to compare -}
    -> Ptr ()
    {- ^ /@dt2@/: second 'GI.GLib.Structs.DateTime.DateTime' to compare -}
    -> m Int32
    {- ^ __Returns:__ -1, 0 or 1 if /@dt1@/ is less than, equal to or greater
  than /@dt2@/. -}
dateTimeCompare dt1 dt2 = liftIO $ do
    result <- g_date_time_compare dt1 dt2
    return result

#if ENABLE_OVERLOADING
#endif

-- method DateTime::equal
-- method type : MemberFunction
-- Args : [Arg {argCName = "dt1", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "dt2", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TBoolean)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_equal" g_date_time_equal :: 
    Ptr () ->                               -- dt1 : TBasicType TPtr
    Ptr () ->                               -- dt2 : TBasicType TPtr
    IO CInt

{- |
Checks to see if /@dt1@/ and /@dt2@/ are equal.

Equal here means that they represent the same moment after converting
them to the same time zone.

/Since: 2.26/
-}
dateTimeEqual ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Ptr ()
    {- ^ /@dt1@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> Ptr ()
    {- ^ /@dt2@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Bool
    {- ^ __Returns:__ 'True' if /@dt1@/ and /@dt2@/ are equal -}
dateTimeEqual dt1 dt2 = liftIO $ do
    result <- g_date_time_equal dt1 dt2
    let result' = (/= 0) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method DateTime::hash
-- method type : MemberFunction
-- Args : [Arg {argCName = "datetime", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #GDateTime", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TUInt)
-- throws : False
-- Skip return : False

foreign import ccall "g_date_time_hash" g_date_time_hash :: 
    Ptr () ->                               -- datetime : TBasicType TPtr
    IO Word32

{- |
Hashes /@datetime@/ into a @/guint/@, suitable for use within 'GI.GLib.Structs.HashTable.HashTable'.

/Since: 2.26/
-}
dateTimeHash ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    Ptr ()
    {- ^ /@datetime@/: a 'GI.GLib.Structs.DateTime.DateTime' -}
    -> m Word32
    {- ^ __Returns:__ a @/guint/@ containing the hash -}
dateTimeHash datetime = liftIO $ do
    result <- g_date_time_hash datetime
    return result

#if ENABLE_OVERLOADING
#endif

#if ENABLE_OVERLOADING
type family ResolveDateTimeMethod (t :: Symbol) (o :: *) :: * where
    ResolveDateTimeMethod "add" o = DateTimeAddMethodInfo
    ResolveDateTimeMethod "addDays" o = DateTimeAddDaysMethodInfo
    ResolveDateTimeMethod "addFull" o = DateTimeAddFullMethodInfo
    ResolveDateTimeMethod "addHours" o = DateTimeAddHoursMethodInfo
    ResolveDateTimeMethod "addMinutes" o = DateTimeAddMinutesMethodInfo
    ResolveDateTimeMethod "addMonths" o = DateTimeAddMonthsMethodInfo
    ResolveDateTimeMethod "addSeconds" o = DateTimeAddSecondsMethodInfo
    ResolveDateTimeMethod "addWeeks" o = DateTimeAddWeeksMethodInfo
    ResolveDateTimeMethod "addYears" o = DateTimeAddYearsMethodInfo
    ResolveDateTimeMethod "difference" o = DateTimeDifferenceMethodInfo
    ResolveDateTimeMethod "format" o = DateTimeFormatMethodInfo
    ResolveDateTimeMethod "isDaylightSavings" o = DateTimeIsDaylightSavingsMethodInfo
    ResolveDateTimeMethod "ref" o = DateTimeRefMethodInfo
    ResolveDateTimeMethod "toLocal" o = DateTimeToLocalMethodInfo
    ResolveDateTimeMethod "toTimeval" o = DateTimeToTimevalMethodInfo
    ResolveDateTimeMethod "toTimezone" o = DateTimeToTimezoneMethodInfo
    ResolveDateTimeMethod "toUnix" o = DateTimeToUnixMethodInfo
    ResolveDateTimeMethod "toUtc" o = DateTimeToUtcMethodInfo
    ResolveDateTimeMethod "unref" o = DateTimeUnrefMethodInfo
    ResolveDateTimeMethod "getDayOfMonth" o = DateTimeGetDayOfMonthMethodInfo
    ResolveDateTimeMethod "getDayOfWeek" o = DateTimeGetDayOfWeekMethodInfo
    ResolveDateTimeMethod "getDayOfYear" o = DateTimeGetDayOfYearMethodInfo
    ResolveDateTimeMethod "getHour" o = DateTimeGetHourMethodInfo
    ResolveDateTimeMethod "getMicrosecond" o = DateTimeGetMicrosecondMethodInfo
    ResolveDateTimeMethod "getMinute" o = DateTimeGetMinuteMethodInfo
    ResolveDateTimeMethod "getMonth" o = DateTimeGetMonthMethodInfo
    ResolveDateTimeMethod "getSecond" o = DateTimeGetSecondMethodInfo
    ResolveDateTimeMethod "getSeconds" o = DateTimeGetSecondsMethodInfo
    ResolveDateTimeMethod "getTimezone" o = DateTimeGetTimezoneMethodInfo
    ResolveDateTimeMethod "getTimezoneAbbreviation" o = DateTimeGetTimezoneAbbreviationMethodInfo
    ResolveDateTimeMethod "getUtcOffset" o = DateTimeGetUtcOffsetMethodInfo
    ResolveDateTimeMethod "getWeekNumberingYear" o = DateTimeGetWeekNumberingYearMethodInfo
    ResolveDateTimeMethod "getWeekOfYear" o = DateTimeGetWeekOfYearMethodInfo
    ResolveDateTimeMethod "getYear" o = DateTimeGetYearMethodInfo
    ResolveDateTimeMethod "getYmd" o = DateTimeGetYmdMethodInfo
    ResolveDateTimeMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolveDateTimeMethod t DateTime, O.MethodInfo info DateTime p) => OL.IsLabel t (DateTime -> p) where
#if MIN_VERSION_base(4,10,0)
    fromLabel = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#else
    fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#endif

#endif