llvm-project/clang/test/Sema/warn-stringcompare.c

30 lines
1.3 KiB
C

// RUN: %clang_cc1 -x c -fsyntax-only -verify %s
// RUN: %clang_cc1 -x c++ -fsyntax-only -verify %s
#define DELIM "/"
#define DOT "."
#define NULL (void *)0
void test(const char *d) {
if ("/" != d) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
if (d == "/") // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
if ("/" != NULL)
return;
if (NULL == "/")
return;
if ("/" != DELIM) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
if (DELIM == "/") // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
if (DELIM != NULL)
return;
if (NULL == DELIM)
return;
if (DOT != DELIM) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
if (DELIM == DOT) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
return;
}