35 lines · cpp
1// Test this without pch.2// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-pc-win32 -fms-extensions -fsyntax-only -include %s -verify -std=c++113 4// Test with pch.5// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-pc-win32 -fms-extensions -emit-pch -o %t -std=c++116// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-pc-win32 -fms-extensions -fsyntax-only -include-pch %t -verify -std=c++117 8// The first run line creates a pch, and since at that point HEADER is not9// defined, the only thing contained in the pch is the pragma. The second line10// then includes that pch, so HEADER is defined and the actual code is compiled.11// The check then makes sure that the pragma is in effect in the file that12// includes the pch.13 14// expected-no-diagnostics15 16#ifndef HEADER17#define HEADER18 19struct S0;20static_assert(sizeof(int S0::*) == 12, "");21 22struct S1;23struct S2;24 25#pragma pointers_to_members(full_generality, single_inheritance)26 27static_assert(sizeof(int S1::*) == 4, "");28 29#else30 31static_assert(sizeof(int S2::*) == 4, "");32static_assert(sizeof(int S0::*) == 12, "");33 34#endif35