1 // RUN: %clang_cc1 -triple i686-apple-darwin9 %s -fsyntax-only -verify 2 // expected-no-diagnostics 3 4 // Stack: [], Alignment: 8 5 6 #pragma pack(push, 1) 7 // Stack: [8], Alignment: 1 8 9 #pragma pack(push, 4) 10 // Stack: [8, 1], Alignment: 4 11 12 // Note that this differs from gcc; pack() in gcc appears to pop the 13 // top stack entry and resets the current alignment. This is both 14 // inconsistent with MSVC, and the gcc documentation. In other cases, 15 // for example changing this to pack(8), I don't even understand what gcc 16 // is doing. 17 18 #pragma pack() 19 // Stack: [8, 1], Alignment: 8 20 21 #pragma pack(pop) 22 // Stack: [8], Alignment: 1 23 struct s0 { 24 char f0; 25 short f1; 26 }; 27 int a[sizeof(struct s0) == 3 ? 1 : -1]; 28 29 #pragma pack(pop) 30 // Stack: [], Alignment: 8 31 struct s1 { 32 char f0; 33 short f1; 34 }; 35 int b[sizeof(struct s1) == 4 ? 1 : -1]; 36
