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111
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1 // PR 16302
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2 /* { dg-do compile } */
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3 /* { dg-options "-Wlogical-op" } */
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4 void bar (int);
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5 int
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6 foo (int argc, char *argv[])
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7 {
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8 if (argc != 1 || argc != 2) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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9 if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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10 if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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11 if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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12 bar (argc != 1 || argc != 2); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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13 bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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14 bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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15 bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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16 return (argc != 1 || argc != 2) ? 1 : 0 ; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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17 return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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18 return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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19 return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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20
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21 if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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22 if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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23 if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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24 if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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25 bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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26 bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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27 bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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28 bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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29 return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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30 return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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31 return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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32 return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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33
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34 if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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35 if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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36 if (!argc || argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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37 if (!argc && argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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38 bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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39 bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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40 bar (!argc || argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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41 bar (!argc && argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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42 return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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43 return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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44 return (!argc || argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */
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45 return (!argc && argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */
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46
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47 return 0;
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48 }
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49
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50 int
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51 foo2 (int argc)
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52 {
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53 if (5 != 1 || 5 != 2) return 1;
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54 if (5 < 0 && 5 > 10) return 1;
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55 if (1 || 0) return 1;
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56 if (0 && 1) return 1;
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57 if (2 || !2) return 1;
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58 if (2 && !2) return 1;
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59 if (!(!2) || !(2)) return 1;
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60 if (!(!2) && !(2)) return 1;
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61 bar (5 != 1 || 5 != 2);
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62 bar (5 < 0 && 5 > 10);
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63 bar (1 || 0);
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64 bar (0 && 1);
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65 bar (2 || !2);
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66 bar (2 && !2);
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67 return (5 != 1 || 5 != 2) ? 1 : 0 ;
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68 return (5 < 0 && 5 > 10) ? 1 : 0;
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69 return (1 || 0) ? 1 : 0 ;
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70 return (0 && 1) ? 1 : 0;
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71 return (2 || !2) ? 1 : 0;
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72 return (2 && !2) ? 1 : 0;
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73
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74 return 0;
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75 }
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76
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