Defined in header <stdlib.h> (1) size_t wcstombs( char *dst, const wchar_t *src, size_t len ); (until C99) size_t wcstombs( char *restrict dst, const wchar_t *restrict src, size_t len ); (since C99) errno_t wcstombs_s( size_t *restrict retval, char *restrict dst, rsize_t dstsz,
const wchar_t *restrict src, rsize_t len ); (2) (since C11)
1) Converts a sequence of wide characters from the array whose first element is pointed