Function core::char::methods::encode_utf8_raw
source · pub fn encode_utf8_raw(code: u32, dst: &mut [u8]) -> &mut [u8]
🔬This is a nightly-only experimental API. (
char_internals
)Expand description
Encodes a raw u32 value as UTF-8 into the provided byte buffer, and then returns the subslice of the buffer that contains the encoded character.
Unlike char::encode_utf8
, this method also handles codepoints in the surrogate range.
(Creating a char
in the surrogate range is UB.)
The result is valid generalized UTF-8 but not valid UTF-8.
Panics
Panics if the buffer is not large enough.
A buffer of length four is large enough to encode any char
.