Function encoding_mem_convert_latin1_to_utf8

#[no_mangle]
pub unsafe extern "C" fn encoding_mem_convert_latin1_to_utf8(
    src: *const u8,
    src_len: usize,
    dst: *mut u8,
    dst_len: usize,
) -> usize

Converts bytes whose unsigned value is interpreted as Unicode code point (i.e. U+0000 to U+00FF, inclusive) to UTF-8.

The length of the destination buffer must be at least the length of the source buffer times two.

Returns the number of bytes written.

Panics

Panics if the destination buffer is shorter than stated above.

Safety

Note that this function may write garbage beyond the number of bytes indicated by the return value, so using a &mut str interpreted as &mut [u8] as the destination is not safe. If you want to convert into a &mut str, use convert_utf16_to_str() instead of this function.

Undefined behavior

UB ensues if src and src_len don’t designate a valid memory block, if src is NULL, if dst and dst_len don’t designate a valid memory block, if dst is NULL or if the two memory blocks overlap. (If src_len is 0, src may be bogus but still has to be non-NULL and aligned. Likewise for dst and dst_len.)