Encodes the codepoint as an UTF-8 string in the byte array pointed to by dst. This array must be at least 4 bytes long.
In case of success the number of bytes written is returned, and otherwise 0 is returned.
This function does not check whether codepoint is valid Unicode.
See Implementation
Encodes the codepoint as an UTF-8 string in the byte array pointed to by dst. This array must be at least 4 bytes long.
In case of success the number of bytes written is returned, and otherwise 0 is returned.
This function does not check whether codepoint is valid Unicode.