Crate varint_simd

varint_simd is a fast SIMD-accelerated variable-length integer encoder and decoder written in Rust.

For more information, please see the README.

Re-exports

• pub use num::*;

Modules

• decode
• encode
• num

Enums

• VarIntDecodeError

Functions

• decode
  Decodes a single varint from the input slice.
• decode_eight_u8_unsafe^⚠ssse3
  Decodes four adjacent varints into u8’s simultaneously. Requires SSSE3 support. Does not perform overflow checking and may produce incorrect output.
• decode_four_unsafe^⚠ssse3
  Decodes four adjacent varints simultaneously. Target types must fit within 16 bytes when varint encoded. Requires SSSE3 support.
• decode_len
  Decodes only the length of a single variant from the input slice.
• decode_len_unsafe^⚠
  Decodes the length of the next integer
• decode_two_unsafe^⚠ssse3
  Decodes two adjacent varints simultaneously. Target types must fit within 16 bytes when varint encoded. Requires SSSE3 support.
• decode_two_wide_unsafe^⚠avx2
  Experimental. May have relatively poor performance. Decode two adjacent varints simultaneously from the input pointer. Requires AVX2. Allows for decoding a pair of u64 values. For smaller values, the non-wide variation of this function will probably be faster.
• decode_unsafe^⚠
  Decodes a single varint from the input pointer. Returns a tuple containing the decoded number and the number of bytes read.
• decode_zigzag
  Convenience function for decoding a single varint in ZigZag format from the input slice. See also: decode
• encodesse2
  Encodes a single number to a varint. Requires SSE2 support.
• encode_to_slicesse2
  Encodes a single number to a varint, and writes the resulting data to the slice. Returns the number of bytes written (maximum 10 bytes).
• encode_unsafe^⚠sse2
  Encodes a single number to a varint. Requires SSE2 support.
• encode_zigzagsse2
  Convenience function for encoding a single signed integer in ZigZag format to a varint. See also: encode