If successful, the function returns the length in bytes of
the UTF-8 output character.
- If utf8char is NULL, count is ignored and the funtion
+ If utf8char is NULL, count is ignored and the function
returns the number of bytes that would be written to the
output char.
written to mbstr, excluding the null termination
character, if any.
- If mbstr is NULL, count is ignored and the funtion
+ If mbstr is NULL, count is ignored and the function
returns the number of bytes required for the output string,
excluding the NULL.