| 1 | // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c89 -Wno-sizeof-array-decay |
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| 2 | // rdar://6095180 |
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| 3 | |
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| 4 | struct s { char c[17]; }; |
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| 5 | extern struct s foo(void); |
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| 6 | |
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| 7 | struct s a, b, c; |
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| 8 | |
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| 9 | int A[sizeof((foo().c)) == 17 ? 1 : -1]; |
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| 10 | int B[sizeof((a.c)) == 17 ? 1 : -1]; |
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| 11 | |
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| 12 | |
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| 13 | // comma does not promote array/function in c90 unless they are lvalues. |
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| 14 | int W[sizeof(0, a.c) == sizeof(char*) ? 1 : -1]; |
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| 15 | int X[sizeof(0, (foo().c)) == 17 ? 1 : -1]; |
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| 16 | int Y[sizeof(0, (a,b).c) == 17 ? 1 : -1]; |
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| 17 | int Z[sizeof(0, (a=b).c) == 17 ? 1 : -1]; // expected-warning {{expression with side effects has no effect in an unevaluated context}} |
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| 18 | |
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