gcc/testsuite/gcc.dg/format/c90-scanf-2.c

   1 /* Test for scanf formats.  Formats using C99 features should be rejected
   2    outside of C99 mode.
   3 */
   4 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   5 /* { dg-do compile } */
   6 /* { dg-options "-std=iso9899:1990 -pedantic -Wformat" } */
   7
   8 #include "format.h"
   9
  10 void
  11 foo (signed char *hhp, float *fp, llong *llp, intmax_t *jp,
  12      size_t *zp, ptrdiff_t *tp)
  13 {
  14   /* Some tests already in c90-scanf-1.c.  */
  15   /* The widths hh, ll, j, z, t are new.  */
  16   scanf ("%hhd", hhp); /* { dg-warning "length|C" "%hh in C90" } */
  17   scanf ("%lld", llp); /* { dg-warning "length|C" "%ll in C90" } */
  18   scanf ("%jd", jp); /* { dg-warning "length|C" "%j in C90" } */
  19   scanf ("%zu", zp); /* { dg-warning "length|C" "%z in C90" } */
  20   scanf ("%td", tp); /* { dg-warning "length|C" "%t in C90" } */
  21   /* The formats F, a, A are new.  */
  22   scanf ("%F", fp); /* { dg-warning "C" "%F in C90" } */
  23   scanf ("%a", fp); /* { dg-warning "C" "%a in C90" } */
  24   scanf ("%A", fp); /* { dg-warning "C" "%A in C90" } */
  25 }