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// RUN: %clang_cc1 %s -verify
#define SOME_ADDR (unsigned long long)0
// PR10837: Warn if a non-pointer-typed expression is folded to a null pointer
int *p = 0;
int *q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}}
int *r = (1 - 1); // expected-warning{{expression which evaluates to zero treated as a null pointer constant}}
void f() {
p = 0;
q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}}
r = 1 - 1; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}}
p = SOME_ADDR; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}}
}
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