github.com/afumu/libc@v0.0.6/musl/src/multibyte/wctob.c (about)

     1  #include <wchar.h>
     2  #include <stdio.h>
     3  #include <stdlib.h>
     4  #include "internal.h"
     5  
     6  int wctob(wint_t c)
     7  {
     8  	if (c < 128U) return c;
     9  	if (MB_CUR_MAX==1 && IS_CODEUNIT(c)) return (unsigned char)c;
    10  	return EOF;
    11  }