xref: /llvm-project/clang/test/SemaCXX/bitfield-layout.cpp (revision d5635feb1a35f5a9d661fe71f9ee13fb17db9a50)
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 test.
7 struct Test1 {
8   char c : 9; // expected-warning {{size of bit-field 'c' (9 bits) exceeds the size of its type; value will be truncated to 8 bits}}
9 };
10 CHECK_SIZE(Test1, 2);
11 CHECK_ALIGN(Test1, 1);
12 
13