encoding_c_mem

Function encoding_mem_str_latin1_up_to

source 
#[no_mangle]
pub unsafe extern "C" fn encoding_mem_str_latin1_up_to(
    buffer: *const u8,
    len: usize,
) -> usize
Expand description

Returns the index of first byte that starts a non-Latin1 byte sequence, or the length of the string if there are none.

§Undefined behavior

UB ensues if buffer and buffer_len don’t designate a valid memory block, if buffer is NULL, or if the memory block does not contain valid UTF-8. (If buffer_len is 0, buffer may be bogus but still has to be non-NULL and aligned.)