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use core::cmp::Ordering;
pub mod arch;
pub mod iter;
pub mod mem;
#[derive(Clone, Copy, PartialEq, PartialOrd, Eq, Ord, Debug, Hash)]
pub struct RangeError;
pub fn memchr(buf: &[u8], c: u8) -> Option<usize> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memchr_impl(buf, c);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memchr_impl(buf, c);
r
}
pub fn memrchr(buf: &[u8], c: u8) -> Option<usize> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memrchr_impl(buf, c);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memrchr_impl(buf, c);
r
}
pub fn memcmp(a: &[u8], b: &[u8]) -> Ordering {
let r = mem::_memcmp_impl(a, b);
r
}
pub fn memcpy(dst: &mut [u8], src: &[u8]) -> Result<(), RangeError> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memcpy_impl(dst, src);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memcpy_impl(dst, src);
r
}
pub fn memeq(a: &[u8], b: &[u8]) -> bool {
let r = mem::_memeq_impl(a, b);
r
}
pub fn memmem(haystack: &[u8], needle: &[u8]) -> Option<usize> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memmem_impl(haystack, needle);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memmem_impl(haystack, needle);
r
}
pub fn memrmem(haystack: &[u8], needle: &[u8]) -> Option<usize> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memrmem_impl(haystack, needle);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memrmem_impl(haystack, needle);
r
}
pub fn memset(buf: &mut [u8], c: u8, n: usize) -> Result<(), RangeError> {
#[cfg(all(
any(target_arch = "x86_64", target_arch = "x86"),
any(target_feature = "sse2", target_feature = "avx")
))]
let r = arch::x86::_memset_impl(buf, c, n);
#[cfg(any(
not(any(target_arch = "x86_64", target_arch = "x86",)),
not(any(target_feature = "sse2", target_feature = "avx"))
))]
let r = mem::_memset_impl(buf, c, n);
r
}
#[inline(always)]
pub(crate) fn plus_offset_from(ptr: *const u8, origin: *const u8) -> usize {
(ptr as usize) - (origin as usize)
}