gcc/testsuite/gcc.dg/format/ms_c99-scanf-1.c

   1 /* Test for scanf formats.  Formats using C99 features, including cases
   2    where C99 specifies some aspect of the format to be ignored or where
   3    the behavior is undefined.
   4 */
   5 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   6 /* { dg-do compile { target { *-*-mingw* } } } */
   7 /* { dg-options "-std=iso9899:1999 -pedantic -Wformat" } */
   8
   9 #define USE_SYSTEM_FORMATS
  10 #include "format.h"
  11
  12 void
  13 foo (int *ip, unsigned int *uip, short int *hp, unsigned short int *uhp,
  14      signed char *hhp, unsigned char *uhhp, long int *lp,
  15      unsigned long int *ulp, float *fp, double *dp, long double *ldp, char *s,
  16      void **pp, int *n, long long *llp, unsigned long long *ullp, wchar_t *ls,
  17      short int *hn, signed char *hhn, long int *ln, long long int *lln,
  18      intmax_t *jp, uintmax_t *ujp, intmax_t *jn, size_t *zp,
  19      signed_size_t *szp, signed_size_t *zn, ptrdiff_t *tp,
  20      unsigned_ptrdiff_t *utp, ptrdiff_t *tn)
  21 {
  22   /* See ISO/IEC 9899:1999 (E) subclause 7.19.6.2 (pages 281-288).
  23      We do not repeat here most of the checks for correct C90 formats
  24      or completely broken formats.
  25   */
  26   /* Valid, invalid and silly assignment-suppression
  27      and width constructions.
  28   */
  29   scanf ("%*d%*i%*o%*u%*x%*X%*e%*E%*f%*g%*G%*s%*[abc]%*c%*p");
  30   scanf ("%*2d%*8s%*3c");
  31   scanf ("%*n", n); /* { dg-warning "suppress" "suppression of %n" } */
  32   scanf ("%*hd"); /* { dg-warning "together" "suppression with length" } */
  33   scanf ("%2d%3i%4o%5u%6x%7X%10e%11E%12f%14g%15G%16s%3[abc]%4c%5p",
  34          ip, ip, uip, uip, uip, uip, fp, fp, fp, fp, fp,
  35          s, s, s, pp);
  36   scanf ("%0d", ip); /* { dg-warning "width" "warning for zero width" } */
  37   scanf ("%3n", n); /* { dg-warning "width" "width with %n" } */
  38   /* Valid and invalid %h, %hh, %l, %j, %z, %t, %L constructions.  */
  39   scanf ("%hd%hi%ho%hu%hx%hX%hn", hp, hp, uhp, uhp, uhp, uhp, hn);
  40   scanf ("%he", fp); /* { dg-warning "length" "bad use of %h" } */
  41   scanf ("%hE", fp); /* { dg-warning "length" "bad use of %h" } */
  42   scanf ("%hf", fp); /* { dg-warning "length" "bad use of %h" } */
  43   scanf ("%hg", fp); /* { dg-warning "length" "bad use of %h" } */
  44   scanf ("%hG", fp); /* { dg-warning "length" "bad use of %h" } */
  45   scanf ("%hs", hp);
  46   scanf ("%h[ac]", s); /* { dg-warning "length" "bad use of %h" } */
  47   scanf ("%hc", (short *)s);
  48   scanf ("%hp", pp); /* { dg-warning "length" "bad use of %h" } */
  49   scanf ("%hhd", hhp); /* { dg-warning "unknown|format" "%hh is unsupported" } */
  50   scanf ("%ld%li%lo%lu%lx%lX%ln", lp, lp, ulp, ulp, ulp, ulp, ln);
  51   scanf ("%le%lE%lf%lg%lG", dp, dp, dp, dp, dp);
  52   scanf ("%lp", pp); /* { dg-warning "length" "bad use of %l" } */
  53   scanf ("%ls", ls);
  54   scanf ("%l[ac]", ls);
  55   scanf ("%lc", ls);
  56   scanf ("%jd", jp); /* { dg-warning "unknown|format" "%j not supported" } */
  57   scanf ("%zd", zp); /* { dg-warning "unknown|format" "%z not supported" } */
  58   scanf ("%td", tp); /* { dg-warning "unknown|format" "%t not supported" } */
  59   scanf ("%Lf", llp); /* { dg-warning "unknown|format" "bad use of %L is not supported" } */
  60   /* Valid uses of each bare conversion.  */
  61   scanf ("%d%i%o%u%x%X%e%E%f%g%G%s%[abc]%c%p%n%%", ip, ip, uip, uip, uip,
  62          uip, fp, fp, fp, fp, fp, s, s, s, pp, n);
  63 }