boost/libs/config/checks/architecture/32.cpp

// 32.cpp
//
// Copyright (c) 2012 Steven Watanabe
//
// Distributed under the Boost Software License Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

int test[sizeof(void*) == 4? 1 : -1];