llvm-project/clang/test/SemaCXX/class-layout.cpp

50 lines
617 B
C++

// RUN: clang-cc -triple x86_64-unknown-unknown %s -fsyntax-only -verify
#define SA(n, p) int a##n[(p) ? 1 : -1]
struct A {
int a;
char b;
};
SA(0, sizeof(A) == 8);
struct B : A {
char c;
};
SA(1, sizeof(B) == 12);
struct C {
// Make fields private so C won't be a POD type.
private:
int a;
char b;
};
SA(2, sizeof(C) == 8);
struct D : C {
char c;
};
SA(3, sizeof(D) == 8);
struct __attribute__((packed)) E {
char b;
int a;
};
SA(4, sizeof(E) == 5);
struct __attribute__((packed)) F : E {
char d;
};
SA(5, sizeof(F) == 6);
struct G { G(); };
struct H : G { };
SA(6, sizeof(H) == 1);