pub const fn bytes_find_skip<'a>(
this: &'a [u8],
needle: &[u8],
) -> Option<&'a [u8]>Expand description
Advances this past the first instance of needle.
Return None if no instance of needle is found.
Return Some(this) if needle is empty.
§Motivation
This function exists because calling bytes_find + slice_from
when the "rust_1_64" feature is disabled
is slower than it could be, since the slice has to be traversed twice.
§Example
use konst::slice::bytes_find_skip;
{
const FOUND: Option<&[u8]> = bytes_find_skip(b"foo bar baz", b"bar");
assert_eq!(FOUND, Some(&b" baz"[..]));
}
{
const NOT_FOUND: Option<&[u8]> = bytes_find_skip(b"foo bar baz", b"qux");
assert_eq!(NOT_FOUND, None);
}
{
const EMPTY_NEEDLE: Option<&[u8]> = bytes_find_skip(b"foo bar baz", b"");
assert_eq!(EMPTY_NEEDLE, Some(&b"foo bar baz"[..]));
}