| License | BSD-style |
|---|---|
| Maintainer | Vincent Hanquez <vincent@snarc.org> |
| Stability | experimental |
| Portability | good |
| Safe Haskell | None |
| Language | Haskell98 |
Data.Byteable
Description
- class Byteable a where
- toBytes :: a -> ByteString
- byteableLength :: a -> Int
- withBytePtr :: a -> (Ptr Word8 -> IO b) -> IO b
- constEqBytes :: Byteable a => a -> a -> Bool
Documentation
class Byteable a where
Class of things that can generate sequence of bytes
Minimal complete definition
Methods
toBytes :: a -> ByteString
Convert a byteable type to a bytestring
byteableLength :: a -> Int
Return the size of the byteable .
withBytePtr :: a -> (Ptr Word8 -> IO b) -> IO b
Provide a way to look at the data of a byteable type with a ptr.
Instances
constEqBytes :: Byteable a => a -> a -> Bool
A constant time equality test for 2 byteable objects.
If objects are of 2 different sizes, the function will abort early without comparing any bytes.
compared to == , this function will go over all the bytes present before yielding a result even when knowing the overall result early in the processing.