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ba4017670e
Summary: As noted in PR, we have a poor test coverage for this warning. I think macro support was just overlooked. GCC warns in these cases. Clang missed a real bug in the code I am working with, GCC caught it. Reviewers: aaron.ballman Reviewed By: aaron.ballman Subscribers: cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D70624
30 lines
1.3 KiB
C
30 lines
1.3 KiB
C
// RUN: %clang_cc1 -x c -fsyntax-only -verify %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify %s
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#define DELIM "/"
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#define DOT "."
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#define NULL (void *)0
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void test(const char *d) {
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if ("/" != d) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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if (d == "/") // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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if ("/" != NULL)
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return;
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if (NULL == "/")
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return;
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if ("/" != DELIM) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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if (DELIM == "/") // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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if (DELIM != NULL)
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return;
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if (NULL == DELIM)
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return;
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if (DOT != DELIM) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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if (DELIM == DOT) // expected-warning {{result of comparison against a string literal is unspecified (use an explicit string comparison function instead)}}
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return;
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}
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