musl/src/stdio/fputws.c

#include "stdio_impl.h"

int fputws(const wchar_t *restrict ws, FILE *restrict f)
{
	unsigned char buf[BUFSIZ];
	size_t l=0;

	FLOCK(f);

	f->mode |= f->mode+1;

	while (ws && (l = wcsrtombs((void *)buf, (void*)&ws, sizeof buf, 0))+1 > 1)
		if (__fwritex(buf, l, f) < l) {
			FUNLOCK(f);
			return -1;
		}

	FUNLOCK(f);

	return l; /* 0 or -1 */
}

weak_alias(fputws, fputws_unlocked);
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include "stdio_impl.h"`

use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict. 2012-09-06 22:44:55 -04:00			`int fputws(const wchar_t restrict ws, FILE restrict f)`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`{`
			`unsigned char buf[BUFSIZ];`
			`size_t l=0;`

			`FLOCK(f);`

			`f->mode \|= f->mode+1;`

fix some pointer signedness issues (this was invalid C) 2011-02-14 19:37:01 -05:00			`while (ws && (l = wcsrtombs((void )buf, (void)&ws, sizeof buf, 0))+1 > 1)`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`if (__fwritex(buf, l, f) < l) {`
			`FUNLOCK(f);`
			`return -1;`
			`}`

			`FUNLOCK(f);`

			`return l; /* 0 or -1 */`
			`}`

			`weak_alias(fputws, fputws_unlocked);`