37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
// RUN: clang-cc -fsyntax-only -pedantic -verify %s
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int test(char *C) { // nothing here should warn.
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return C != ((void*)0);
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return C != (void*)0;
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return C != 0;
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return C != 1; // expected-warning {{comparison between pointer and integer ('char *' and 'int')}}
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}
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int equal(char *a, const char *b) {
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return a == b;
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}
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int arrays(char (*a)[5], char(*b)[10], char(*c)[5]) {
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int d = (a == c);
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return a == b; // expected-warning {{comparison of distinct pointer types}}
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}
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int pointers(int *a) {
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return a > 0; // expected-warning {{ordered comparison between pointer and zero ('int *' and 'int') is an extension}}
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return a > 42; // expected-warning {{ordered comparison between pointer and integer ('int *' and 'int')}}
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return a > (void *)0; // expected-warning {{comparison of distinct pointer types}}
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}
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int function_pointers(int (*a)(int), int (*b)(int), void (*c)(int)) {
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return a > b; // expected-warning {{ordered comparison of function pointers}}
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return function_pointers > function_pointers; // expected-warning {{ordered comparison of function pointers}}
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return a > c; // expected-warning {{comparison of distinct pointer types}}
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return a == (void *) 0;
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return a == (void *) 1; // expected-warning {{equality comparison between function pointer and void pointer}}
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}
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int void_pointers(void* foo) {
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return foo == (void*) 0;
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return foo == (void*) 1;
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}
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