github.com/afumu/libc@v0.0.6/musl/src/stdio/fputws.c (about)

     1  #include "stdio_impl.h"
     2  #include "locale_impl.h"
     3  #include <wchar.h>
     4  
     5  int fputws(const wchar_t *restrict ws, FILE *restrict f)
     6  {
     7  	unsigned char buf[BUFSIZ];
     8  	size_t l=0;
     9  	locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
    10  
    11  	FLOCK(f);
    12  
    13  	fwide(f, 1);
    14  	*ploc = f->locale;
    15  
    16  	while (ws && (l = wcsrtombs((void *)buf, (void*)&ws, sizeof buf, 0))+1 > 1)
    17  		if (__fwritex(buf, l, f) < l) {
    18  			FUNLOCK(f);
    19  			*ploc = loc;
    20  			return -1;
    21  		}
    22  
    23  	FUNLOCK(f);
    24  
    25  	*ploc = loc;
    26  	return l; /* 0 or -1 */
    27  }
    28  
    29  weak_alias(fputws, fputws_unlocked);