| 1 | // RUN: %clang_cc1 %s -fsyntax-only -verify -triple=x86_64-apple-darwin10 |
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| 2 | |
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| 3 | #define CHECK_SIZE(name, size) extern int name##1[sizeof(name) == size ? 1 : -1]; |
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| 4 | #define CHECK_ALIGN(name, size) extern int name##2[__alignof(name) == size ? 1 : -1]; |
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| 5 | |
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| 6 | // Simple tests. |
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| 7 | struct Test1 { |
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| 8 | char c : 9; // expected-warning {{width of bit-field 'c' (9 bits) exceeds the width of its type; value will be truncated to 8 bits}} |
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| 9 | }; |
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| 10 | CHECK_SIZE(Test1, 2); |
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| 11 | CHECK_ALIGN(Test1, 1); |
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| 12 | |
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| 13 | struct Test2 { |
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| 14 | char c : 16; // expected-warning {{width of bit-field 'c' (16 bits) exceeds the width of its type; value will be truncated to 8 bits}} |
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| 15 | }; |
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| 16 | CHECK_SIZE(Test2, 2); |
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| 17 | CHECK_ALIGN(Test2, 2); |
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| 18 | |
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| 19 | struct Test3 { |
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| 20 | char c : 32; // expected-warning {{width of bit-field 'c' (32 bits) exceeds the width of its type; value will be truncated to 8 bits}} |
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| 21 | }; |
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| 22 | CHECK_SIZE(Test3, 4); |
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| 23 | CHECK_ALIGN(Test3, 4); |
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| 24 | |
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| 25 | struct Test4 { |
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| 26 | char c : 64; // expected-warning {{width of bit-field 'c' (64 bits) exceeds the width of its type; value will be truncated to 8 bits}} |
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| 27 | }; |
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| 28 | CHECK_SIZE(Test4, 8); |
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| 29 | CHECK_ALIGN(Test4, 8); |
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| 30 | |
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| 31 | |
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