mblen()

IMPORT_C int mblen(const char *string, size_t size);

Description

If string is not a null pointer, the function returns the number of bytes in the multibyte string that constitute the next multibyte character, or it returns -1 if the next n (or the remaining) bytes do not constitute a valid multibyte character. mblen does not include the terminating null in the count of bytes.

Parameters

const char *string size_t size

Return value

int the number of bytes in the multibyte string