/* PR 16302 */ /* { dg-do compile } */ /* { dg-options "-Wlogical-op" } */ void bar (int); int foo (int argc, char *argv[]) { if (argc != 1 || argc != 2) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc != 1 || argc != 2); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc != 1 || argc != 2) ? 1 : 0 ; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc || !argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ if (argc && !argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc || !argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ bar (argc && !argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc || !argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ return (argc && !argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc == 2 && argc == 1) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (argc < 0 && argc > 10) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ if (!argc || argc) return 1; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ if (!argc && argc) return 1; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc == 2 && argc == 1); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (argc < 0 && argc > 10); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ bar (!argc || argc); /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ bar (!argc && argc); /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc == 2 && argc == 1) ? 1 : 0 ; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (argc < 0 && argc > 10) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return (!argc || argc) ? 1 : 0; /* { dg-warning "'or' of collectively exhaustive tests is always true" } */ return (!argc && argc) ? 1 : 0; /* { dg-warning "'and' of mutually exclusive tests is always false" } */ return 0; } int foo2 (int argc) { if (5 != 1 || 5 != 2) return 1; if (5 < 0 && 5 > 10) return 1; if (1 || 0) return 1; if (0 && 1) return 1; if (2 || !2) return 1; if (2 && !2) return 1; if (!(!2) || !(2)) return 1; if (!(!2) && !(2)) return 1; bar (5 != 1 || 5 != 2); bar (5 < 0 && 5 > 10); bar (1 || 0); bar (0 && 1); bar (2 || !2); bar (2 && !2); return (5 != 1 || 5 != 2) ? 1 : 0 ; return (5 < 0 && 5 > 10) ? 1 : 0; return (1 || 0) ? 1 : 0 ; return (0 && 1) ? 1 : 0; return (2 || !2) ? 1 : 0; return (2 && !2) ? 1 : 0; return 0; }