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