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111
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1 /* Test for scanf formats. %a and %m extensions. */
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2 /* { dg-do compile } */
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3 /* { dg-options "-std=gnu89 -Wformat" } */
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4
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5 #include "format.h"
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6
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7 void
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8 foo (char **sp, wchar_t **lsp, int *ip, float *fp, void **pp, double *dp)
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9 {
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10 /* %a formats for allocation, only recognized in C90 mode, are a
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11 GNU extension. Followed by other characters, %a is not treated
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12 specially.
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13 */
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14 scanf ("%as", sp);
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15 scanf ("%aS", lsp);
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16 scanf ("%las", dp);
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17 scanf ("%la", lsp); /* { dg-warning "but argument 2 has type" } */
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18 scanf ("%las", lsp); /* { dg-warning "but argument 2 has type" } */
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19 scanf ("%a[bcd]", sp);
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20 scanf ("%la[bcd]", dp);
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21 scanf ("%*as");
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22 scanf ("%*aS");
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23 scanf ("%*las"); /* { dg-warning "assignment suppression and length modifier" } */
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24 scanf ("%*a[bcd]");
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25 scanf ("%*la[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */
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26 scanf ("%10as", sp);
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27 scanf ("%5aS", lsp);
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28 scanf ("%9las", dp);
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29 scanf ("%25a[bcd]", sp);
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30 scanf ("%48la[bcd]", dp);
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31 scanf ("%*10as");
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32 scanf ("%*5aS");
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33 scanf ("%*9las"); /* { dg-warning "assignment suppression and length modifier" } */
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34 scanf ("%*25a[bcd]");
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35 scanf ("%*48la[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */
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36
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37 /* m assignment-allocation modifier, recognized in both C90
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38 and C99 modes, is a POSIX and ISO/IEC WDTR 24731-2 extension. */
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39 scanf ("%ms", sp);
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40 scanf ("%mS", lsp);
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41 scanf ("%mls", lsp);
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42 scanf ("%m[bcd]", sp);
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43 scanf ("%ml[bcd]", lsp);
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44 scanf ("%mc", sp);
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45 scanf ("%mlc", lsp);
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46 scanf ("%mC", lsp);
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47 scanf ("%*ms");
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48 scanf ("%*mS");
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49 scanf ("%*mls"); /* { dg-warning "assignment suppression and length modifier" } */
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50 scanf ("%*m[bcd]");
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51 scanf ("%*ml[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */
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52 scanf ("%*mc");
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53 scanf ("%*mlc"); /* { dg-warning "assignment suppression and length modifier" } */
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54 scanf ("%*mC");
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55 scanf ("%10ms", sp);
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56 scanf ("%5mS", lsp);
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57 scanf ("%9mls", lsp);
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58 scanf ("%25m[bcd]", sp);
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59 scanf ("%41ml[bcd]", lsp);
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60 scanf ("%131mc", sp);
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61 scanf ("%27mlc", lsp);
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62 scanf ("%2mC", lsp);
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63 scanf ("%*10ms");
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64 scanf ("%*5mS");
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65 scanf ("%*9mls"); /* { dg-warning "assignment suppression and length modifier" } */
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66 scanf ("%*25m[bcd]");
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67 scanf ("%*41ml[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */
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68 scanf ("%*131mc");
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69 scanf ("%*27mlc"); /* { dg-warning "assignment suppression and length modifier" } */
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70 scanf ("%*2mC");
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71
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72 scanf ("%md", ip); /* { dg-warning "flag used with" } */
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73 scanf ("%mi", ip); /* { dg-warning "flag used with" } */
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74 scanf ("%mo", ip); /* { dg-warning "flag used with" } */
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75 scanf ("%mu", ip); /* { dg-warning "flag used with" } */
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76 scanf ("%mx", ip); /* { dg-warning "flag used with" } */
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77 scanf ("%me", fp); /* { dg-warning "flag used with" } */
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78 scanf ("%mf", fp); /* { dg-warning "flag used with" } */
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79 scanf ("%mg", fp); /* { dg-warning "flag used with" } */
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80 scanf ("%mp", pp); /* { dg-warning "flag used with" } */
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81
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82 scanf ("%mas", sp); /* { dg-warning "flag together" } */
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83 scanf ("%maS", lsp); /* { dg-warning "flag together" } */
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84 scanf ("%ma[bcd]", sp); /* { dg-warning "flag together" } */
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85 }
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