Function konst::slice::bytes_strip_suffix

source · 
pub const fn bytes_strip_suffix<'a, const N: usize, P>(
    left: &'a [u8],
    suffix: &P
) -> Option<&'a [u8]>
where
    P: ?Sized + BytesPattern<N>,
Expand description

Remove suffix from the end of left.

Returns None if suffix is not the end of left.

A const analog of <[u8]>::strip_suffix

§Example

use konst::slice::bytes_strip_suffix;

assert_eq!(bytes_strip_suffix(b"foo,bar,baz", b",baz"), Some("foo,bar".as_bytes()));
assert_eq!(bytes_strip_suffix(b"foo,bar,baz", ",bar,baz"), Some("foo".as_bytes()));
assert_eq!(bytes_strip_suffix(b"foo,bar,baz", &'z'), Some("foo,bar,ba".as_bytes()));

assert_eq!(bytes_strip_suffix(b"foo,bar,baz", b"bar"), None);
assert_eq!(bytes_strip_suffix(b"foo,bar,baz", "foo"), None);