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 12void 13foo (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} 64