| Copyright | (c) The FFI task force 2001 |
|---|---|
| License | BSD-style (see the file libraries/base/LICENSE) |
| Maintainer | [email protected] |
| Stability | provisional |
| Portability | portable |
| Safe Haskell | Safe-Inferred |
| Language | Haskell2010 |
Mapping of C types to corresponding Haskell types.
Haskell type representing the C char type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C signed char type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C unsigned char type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C short type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C unsigned short type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C int type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C unsigned int type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C long type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C unsigned long type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C ptrdiff_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C size_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C wchar_t type. (The concrete types of Foreign.C.Types are platform-specific.)
newtype CSigAtomic Source
Haskell type representing the C sig_atomic_t type. (The concrete types of Foreign.C.Types are platform-specific.) See Note [Lack of signals on wasm32-wasi].
| CSigAtomic Int32 |
Haskell type representing the C long long type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C unsigned long long type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C bool type. (The concrete types of Foreign.C.Types are platform-specific.)
Since: base-4.10.0.0
These types are represented as newtypes of basic foreign types, and are instances of Eq, Ord, Num, Read, Show, Enum, Typeable and Storable.
Haskell type representing the C clock_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C time_t type. (The concrete types of Foreign.C.Types are platform-specific.)
| Enum CTime Source | |
| Storable CTime Source | |
Defined in GHC.Internal.Foreign.C.Types | |
| Num CTime Source | |
| Read CTime Source | |
| Real CTime Source | |
Defined in GHC.Internal.Foreign.C.Types MethodstoRational :: CTime -> Rational Source | |
| Show CTime Source | |
| Eq CTime Source | |
| Ord CTime Source | |
Defined in GHC.Internal.Foreign.C.Types | |
Haskell type representing the C useconds_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Since: base-4.4.0.0
newtype CSUSeconds Source
Haskell type representing the C suseconds_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Since: base-4.4.0.0
| CSUSeconds Int64 |
To convert CTime to UTCTime, use the following:
\t -> posixSecondsToUTCTime (realToFrac t :: POSIXTime)
These types are represented as newtypes of Float and Double, and are instances of Eq, Ord, Num, Read, Show, Enum, Typeable, Storable, Real, Fractional, Floating, RealFrac and RealFloat. That does mean that CFloat's (respectively CDouble's) instances of Eq, Ord, Num and Fractional are as badly behaved as Float's (respectively Double's).
Haskell type representing the C float type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C double type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C FILE type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C fpos_t type. (The concrete types of Foreign.C.Types are platform-specific.)
Haskell type representing the C jmp_buf type. (The concrete types of Foreign.C.Types are platform-specific.)
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/9.12.1/docs/libraries/base-4.21.0.0-8e62/Foreign-C-Types.html