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  }