This package supplies half-precision floating point values w/ 1 bit of sign, 5 bits of exponent, 11 bits of mantissa trailing a leading 1 bit with proper underflow.
These arise commonly in GPU applications.
Contact Information
Contributions and bug reports are welcome!
Please feel free to contact me through github or on the #haskell IRC channel on irc.freenode.net.
-Edward Kmett
Changes
0.3.2 [2024.12.04]
Drop support for pre-8.0 versions of GHC.
0.3.1 [2021-01-04]
Downgraded testing claims that NaNs will round-trip, as 32-bit GHCs aren’t fulfilling that promise.
Now we merely claim that a NaN will return as a NaN.
Always provide NFData Half instance
Add Binary Half instance
Explicitly mark module as Trustworthy
Fix isInfinite
Add experimental support for GHCJS, add pure conversion functions.
0.3
Fixed bound in floatRange.
Fixed decodeFloat.
Added a Lift instance for Half for template-haskell support.
0.2.2.3
Avoid the new warnings for missing pattern synonym signatures on GHC 8
0.2.2.2
Fixed an issue with Storable that was causing crashing for some users.
0.2.2.1
Added support for older GHCs still. unsafeShiftR was only added in 7.4.
0.2.2
Fixed isInfinite.
Added support for older GHCs. On GHC < 7.8 the pattern synonyms are disabled.
0.2.1
Removed need for GeneralizedNewtypeDeriving and ScopedTypeVariables.
0.2.0.1
Fixed source repository location
0.2
Renamed toFloat to fromHalf for easier unqualified use.
Added a Read instance.
0.1.1
Added a CTYPE to the Half declaration so that it can be used with CApiFFI as an unsigned short.
