minix/external/bsd/llvm/dist/clang/test/Sema/pragma-pack-3.c

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// RUN: %clang_cc1 -triple i686-apple-darwin9 %s -fsyntax-only -verify
// expected-no-diagnostics
// Stack: [], Alignment: 8
#pragma pack(push, 1)
// Stack: [8], Alignment: 1
#pragma pack(push, 4)
// Stack: [8, 1], Alignment: 4
// Note that this differs from gcc; pack() in gcc appears to pop the
// top stack entry and resets the current alignment. This is both
// inconsistent with MSVC, and the gcc documentation. In other cases,
// for example changing this to pack(8), I don't even understand what gcc
// is doing.
#pragma pack()
// Stack: [8, 1], Alignment: 8
#pragma pack(pop)
// Stack: [8], Alignment: 1
struct s0 {
char f0;
short f1;
};
int a[sizeof(struct s0) == 3 ? 1 : -1];
#pragma pack(pop)
// Stack: [], Alignment: 8
struct s1 {
char f0;
short f1;
};
int b[sizeof(struct s1) == 4 ? 1 : -1];