src/stdio/fgetws.c

   1 #include "stdio_impl.h"
   2 #include <wchar.h>
   3
   4 wint_t __fgetwc_unlocked(FILE *);
   5
   6 wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f)
   7 {
   8         wchar_t *p = s;
   9
  10         if (!n--) return s;
  11
  12         FLOCK(f);
  13
  14         for (; n; n--) {
  15                 wint_t c = __fgetwc_unlocked(f);
  16                 if (c == WEOF) break;
  17                 *p++ = c;
  18                 if (c == '\n') break;
  19         }
  20         *p = 0;
  21         if (ferror(f)) p = s;
  22
  23         FUNLOCK(f);
  24
  25         return (p == s) ? NULL : s;
  26 }
  27
  28 weak_alias(fgetws, fgetws_unlocked);