1 // RUN: %clang_cc1 %s -fsyntax-only -verify -triple=x86_64-apple-darwin10 2 3 #define CHECK_SIZE(name, size) extern int name##1[sizeof(name) == size ? 1 : -1]; 4 #define CHECK_ALIGN(name, size) extern int name##2[__alignof(name) == size ? 1 : -1]; 5 6 // Simple tests. 7 struct Test1 { 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}} 9 }; 10 CHECK_SIZE(Test1, 2); 11 CHECK_ALIGN(Test1, 1); 12 13 struct Test2 { 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}} 15 }; 16 CHECK_SIZE(Test2, 2); 17 CHECK_ALIGN(Test2, 2); 18 19 struct Test3 { 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}} 21 }; 22 CHECK_SIZE(Test3, 4); 23 CHECK_ALIGN(Test3, 4); 24 25 struct Test4 { 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}} 27 }; 28 CHECK_SIZE(Test4, 8); 29 CHECK_ALIGN(Test4, 8); 30 31
