@hackage digest0.0.2.1

CRC32 and Adler32 hashes for bytestrings

  • Installation

  • Tested Compilers

  • Dependencies (3)

  • Dependents (33)

    @hackage/lhc, @hackage/minio-hs, @hackage/mecha, @hackage/zip-conduit, @hackage/snappy-c, @hackage/feature-flipper, Show all…

    • Package Flags

      pkg-config
       (on by default)

      Use pkg-config(1) to locate zlib library.

      have_builtin_prefetch
       (off by default)

      The cxx compiler has the __builtin_prefetch intrinsic.

      have_mm_prefetch
       (off by default)

      Targeting X86 and the compiler has the _mm_prefetch intrinsic.

      have_sse42
       (off by default)

      Can be enabled to improve performance of CRC32C if targeting X86 and the compiler has the _mm_crc32_u{8,32,64} intrinsics.

      have_arm64_crc32c
       (off by default)

      Targeting ARM and the compiler has the __crc32c{b,h,w,d} and the vmull_p64 intrinsics.

      have_strong_getauxval
       (off by default)

      The system libraries have the getauxval function in the sys/auxv.h header. Should be true on Linux and Android API level 20+.

      have_weak_getauxval
       (off by default)

      The compiler supports defining getauxval as a weak symbol. Should be true for any compiler that supports attribute((weak)).

This package provides efficient hash implementations for strict and lazy bytestrings. For now, CRC32 and Adler32 are supported; they are implemented as FFI bindings to efficient code from zlib.