50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s -std=c11
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int test1(int *a) {
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return a == '\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test2(int *a) {
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return '\0' == a; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test3(int *a) {
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return a == L'\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test4(int *a) {
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return a == u'\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test5(int *a) {
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return a == U'\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test6(int *a) {
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return a == (char)0; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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typedef char my_char;
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int test7(int *a) {
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return a == (my_char)0;
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// expected-warning@-1 {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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int test8(int *a) {
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return a != '\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to (void *)0?}}
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}
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#define NULL (void *)0
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int test9(int *a) {
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return a == '\0'; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to NULL?}}
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}
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#define MYCHAR char
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int test10(int *a) {
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return a == (MYCHAR)0; // expected-warning {{comparing a pointer to a null character constant; did you mean to compare to NULL?}}
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}
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int test11(int *a) {
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return a > '\0';
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}
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