llvm-project/clang/test/SemaCXX/pragma-pack.cpp

59 lines
867 B
C++

// RUN: %clang_cc1 -triple i686-apple-darwin9 -fsyntax-only -verify %s
// expected-no-diagnostics
namespace rdar8745206 {
struct Base {
int i;
};
#pragma pack(push, 1)
struct Sub : public Base {
char c;
};
#pragma pack(pop)
int check[sizeof(Sub) == 5 ? 1 : -1];
}
namespace check2 {
struct Base {
virtual ~Base();
int x;
};
#pragma pack(push, 1)
struct Sub : virtual Base {
char c;
};
#pragma pack(pop)
int check[sizeof(Sub) == 13 ? 1 : -1];
}
namespace llvm_support_endian {
template<typename, bool> struct X;
#pragma pack(push)
#pragma pack(1)
template<typename T> struct X<T, true> {
T t;
};
#pragma pack(pop)
#pragma pack(push)
#pragma pack(2)
template<> struct X<long double, true> {
long double c;
};
#pragma pack(pop)
int check1[__alignof(X<int, true>) == 1 ? 1 : -1];
int check2[__alignof(X<long double, true>) == 2 ? 1 : -1];
}