Safe Haskell	Safe-Inferred
Language	Haskell2010

Futhark.Data.Compare

Description

Facilities for comparing values for equality. While Eq instances are defined, these are not useful when NaNs are involved, and do not *explain* the differences.

Synopsis

compareValues :: Tolerance -> Value -> Value -> [Mismatch]
compareSeveralValues :: Tolerance -> [Value] -> [Value] -> [Mismatch]
newtype Tolerance = Tolerance Double
data Mismatch

Documentation

compareValues :: Tolerance -> Value -> Value -> [Mismatch] Source #

Compare two Futhark values for equality.

compareSeveralValues :: Tolerance -> [Value] -> [Value] -> [Mismatch] Source #

As compareValues, but compares several values. The two lists must have the same length.

newtype Tolerance Source #

The maximum relative tolerance used for comparing floating-point results. 0.002 (0.2%) is a fine default if you have no particular opinion.

Constructors

Tolerance Double

Instances

Instances details

Show Tolerance Source #
Instance details Defined in Futhark.Data.Compare Methods showsPrec :: Int -> Tolerance -> ShowS # show :: Tolerance -> String # showList :: [Tolerance] -> ShowS #
Eq Tolerance Source #
Instance details Defined in Futhark.Data.Compare Methods (==) :: Tolerance -> Tolerance -> Bool # (/=) :: Tolerance -> Tolerance -> Bool #
Ord Tolerance Source #
Instance details Defined in Futhark.Data.Compare Methods compare :: Tolerance -> Tolerance -> Ordering # (<) :: Tolerance -> Tolerance -> Bool # (<=) :: Tolerance -> Tolerance -> Bool # (>) :: Tolerance -> Tolerance -> Bool # (>=) :: Tolerance -> Tolerance -> Bool # max :: Tolerance -> Tolerance -> Tolerance # min :: Tolerance -> Tolerance -> Tolerance #

data Mismatch Source #

Two values differ in some way. The Show instance produces a human-readable explanation.

Instances

Instances details

Show Mismatch Source #
Instance details Defined in Futhark.Data.Compare Methods showsPrec :: Int -> Mismatch -> ShowS # show :: Mismatch -> String # showList :: [Mismatch] -> ShowS #