fgetws.c\stdio\src - musl - musl - an implementation of the standard library for Linux-based systems

#include "stdio_impl.h"
#include <wchar.h>
wint_t __fgetwc_unlocked(FILE *);
wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f)
{
	wchar_t *p = s;
	if (!n--) return s;
	FLOCK(f);
	for (; n; n--) {
		wint_t c = __fgetwc_unlocked(f);
		if (c == WEOF) break;
		*p++ = c;
		if (c == '\n') break;
	}
	*p = 0;
	if (ferror(f)) p = s;
	FUNLOCK(f);
	return (p == s) ? NULL : s;
}
weak_alias(fgetws, fgetws_unlocked);