Crate memx[−][src]
Expand description
memx minics libc.
This crate is implemented memory functions like libc memcmp(), memchr(), memmem(), memcpy(), memset().
Features
- Rewriting with rust lang.
- minimum support rustc 1.46.0 (04488afe3 2020-08-24)
Todo
- Support the zero overhead trait.
- Support more fast routine on armv7-android
- Support more fast routine on x86_64
- Support #![no_std]
Support status of miri :: rustc 1.56.0-nightly (a6ece5615 2021-08-03)
Ok lists:
- cargo miri test –target=i586-unknown-linux-gnu
- cargo miri test –target=aarch64-unknown-linux-gnu
- cargo miri test –target=armv7-unknown-linux-gnueabihf
Failed lists:
- cargo miri test –target=x86_64-unknown-linux-gnu
- cargo miri test –target=i686-unknown-linux-gnu
miri error: unimplemented intrinsic: simd_eq
Modules
Structs
used by memcpy()
Functions
This mimics libc::memchr(), same as buf.iter().position(|&x| x == c).
This mimics libc::memcmp(), same as a.cmp(&b).
This mimics libc::memcpy(), same as dst = src.
This mimics libc::bcmp(), same as a == b.
This mimics libc::memmem(), same as (haystack as &str).find(needle as &str) or haystack.windows(needle.len()).position(|window| window == needle).
This is same as buf.iter().position(|&x| x != c), not included libc.
This mimics libc::memrchr(), same as buf.iter().rposition(|&x| x == c).
This mimics libc::memrmem(), same as (haystack as &str).rfind(needle as &str) or haystack.windows(needle.len()).rposition(|window| window == needle).
This is same as buf.iter().rposition(|&x| x != c), not included libc.
This mimics libc::memset(), same as buf.fill(c).