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111
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1 /* Test for scanf formats. Formats using C99 features, including cases
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2 where C99 specifies some aspect of the format to be ignored or where
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3 the behavior is undefined.
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4 */
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5 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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6 /* { dg-do compile { target { *-*-mingw* } } } */
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7 /* { dg-options "-std=iso9899:1999 -pedantic -Wformat" } */
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8
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9 #define USE_SYSTEM_FORMATS
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10 #include "format.h"
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11
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12 void
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13 foo (int *ip, unsigned int *uip, short int *hp, unsigned short int *uhp,
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14 signed char *hhp, unsigned char *uhhp, long int *lp,
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15 unsigned long int *ulp, float *fp, double *dp, long double *ldp, char *s,
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16 void **pp, int *n, long long *llp, unsigned long long *ullp, wchar_t *ls,
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17 short int *hn, signed char *hhn, long int *ln, long long int *lln,
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18 intmax_t *jp, uintmax_t *ujp, intmax_t *jn, size_t *zp,
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19 signed_size_t *szp, signed_size_t *zn, ptrdiff_t *tp,
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20 unsigned_ptrdiff_t *utp, ptrdiff_t *tn)
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21 {
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22 /* See ISO/IEC 9899:1999 (E) subclause 7.19.6.2 (pages 281-288).
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23 We do not repeat here most of the checks for correct C90 formats
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24 or completely broken formats.
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25 */
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26 /* Valid, invalid and silly assignment-suppression
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27 and width constructions.
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28 */
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29 scanf ("%*d%*i%*o%*u%*x%*X%*e%*E%*f%*g%*G%*s%*[abc]%*c%*p");
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30 scanf ("%*2d%*8s%*3c");
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31 scanf ("%*n", n); /* { dg-warning "suppress" "suppression of %n" } */
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32 scanf ("%*hd"); /* { dg-warning "together" "suppression with length" } */
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33 scanf ("%2d%3i%4o%5u%6x%7X%10e%11E%12f%14g%15G%16s%3[abc]%4c%5p",
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34 ip, ip, uip, uip, uip, uip, fp, fp, fp, fp, fp,
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35 s, s, s, pp);
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36 scanf ("%0d", ip); /* { dg-warning "width" "warning for zero width" } */
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37 scanf ("%3n", n); /* { dg-warning "width" "width with %n" } */
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38 /* Valid and invalid %h, %hh, %l, %j, %z, %t, %L constructions. */
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39 scanf ("%hd%hi%ho%hu%hx%hX%hn", hp, hp, uhp, uhp, uhp, uhp, hn);
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40 scanf ("%he", fp); /* { dg-warning "length" "bad use of %h" } */
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41 scanf ("%hE", fp); /* { dg-warning "length" "bad use of %h" } */
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42 scanf ("%hf", fp); /* { dg-warning "length" "bad use of %h" } */
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43 scanf ("%hg", fp); /* { dg-warning "length" "bad use of %h" } */
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44 scanf ("%hG", fp); /* { dg-warning "length" "bad use of %h" } */
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45 scanf ("%hs", hp);
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46 scanf ("%h[ac]", s); /* { dg-warning "length" "bad use of %h" } */
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47 scanf ("%hc", (short *)s);
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48 scanf ("%hp", pp); /* { dg-warning "length" "bad use of %h" } */
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49 scanf ("%hhd", hhp); /* { dg-warning "unknown|format" "%hh is unsupported" } */
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50 scanf ("%ld%li%lo%lu%lx%lX%ln", lp, lp, ulp, ulp, ulp, ulp, ln);
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51 scanf ("%le%lE%lf%lg%lG", dp, dp, dp, dp, dp);
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52 scanf ("%lp", pp); /* { dg-warning "length" "bad use of %l" } */
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53 scanf ("%ls", ls);
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54 scanf ("%l[ac]", ls);
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55 scanf ("%lc", ls);
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56 scanf ("%jd", jp); /* { dg-warning "unknown|format" "%j not supported" } */
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57 scanf ("%zd", zp); /* { dg-warning "unknown|format" "%z not supported" } */
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58 scanf ("%td", tp); /* { dg-warning "unknown|format" "%t not supported" } */
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59 scanf ("%Lf", llp); /* { dg-warning "unknown|format" "bad use of %L is not supported" } */
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60 /* Valid uses of each bare conversion. */
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61 scanf ("%d%i%o%u%x%X%e%E%f%g%G%s%[abc]%c%p%n%%", ip, ip, uip, uip, uip,
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62 uip, fp, fp, fp, fp, fp, s, s, s, pp, n);
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63 }
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