Index - W
| waitBarrier | Control.Concurrent.Extra, Extra | 
| waitBarrierMaybe | Control.Concurrent.Extra, Extra | 
| waitForProcess | System.Process.Extra | 
| waitQSem | Control.Concurrent.Extra | 
| waitQSemN | Control.Concurrent.Extra | 
| when | Control.Monad.Extra | 
| whenJust | Control.Monad.Extra, Extra | 
| whenJustM | Control.Monad.Extra, Extra | 
| whenM | Control.Monad.Extra, Extra | 
| whenMaybe | Control.Monad.Extra, Extra | 
| whenMaybeM | Control.Monad.Extra, Extra | 
| whileM | Control.Monad.Extra, Extra | 
| withArgs | System.Environment.Extra | 
| withBinaryFile | System.IO.Extra | 
| withBuffering | System.IO.Extra, Extra | 
| withCreateProcess | System.Process.Extra | 
| withCurrentDirectory | System.Directory.Extra, Extra | 
| withFile | System.IO.Extra | 
| withLock | Control.Concurrent.Extra, Extra | 
| withLockTry | Control.Concurrent.Extra, Extra | 
| withMVar | Control.Concurrent.Extra | 
| withMVarMasked | Control.Concurrent.Extra | 
| withNumCapabilities | Control.Concurrent.Extra, Extra | 
| withProgName | System.Environment.Extra | 
| withTempDir | System.IO.Extra, Extra | 
| withTempFile | System.IO.Extra, Extra | 
| withVar | Control.Concurrent.Extra, Extra | 
| word1 | Data.List.Extra, Extra | 
| words | Data.List.Extra | 
| wordsBy | Data.List.Extra, Extra | 
| writable | System.Directory.Extra | 
| writeChan | Control.Concurrent.Extra | 
| writeFile | System.IO.Extra | 
| writeFileBinary | System.IO.Extra, Extra | 
| writeFileEncoding | System.IO.Extra, Extra | 
| writeFileUTF8 | System.IO.Extra, Extra | 
| writeIORef | Data.IORef.Extra | 
| writeIORef' | Data.IORef.Extra, Extra | 
| writeList2Chan | Control.Concurrent.Extra | 
| WriteMode | System.IO.Extra | 
| writeVar | Control.Concurrent.Extra, Extra |