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Diffstat (limited to 'sw/source/filter/ww8/staticassert.hxx')
-rw-r--r-- | sw/source/filter/ww8/staticassert.hxx | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sw/source/filter/ww8/staticassert.hxx b/sw/source/filter/ww8/staticassert.hxx new file mode 100644 index 000000000000..3d1a3c2bceea --- /dev/null +++ b/sw/source/filter/ww8/staticassert.hxx @@ -0,0 +1,72 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef WW_STATICASSERT_HXX +#define WW_STATICASSERT_HXX + +/* + Lifted direct from: + Modern C++ Design: Generic Programming and Design Patterns Applied + Section 2.1 + by Andrei Alexandrescu +*/ +namespace ww +{ + template<bool> class compile_time_check + { + public: + compile_time_check(...) {} + }; + + template<> class compile_time_check<false> + { + }; +} + + /* + Similiar to assert, StaticAssert is only in operation when NDEBUG is not + defined. It will test its first argument at compile time and on failure + report the error message of the second argument, which must be a valid c++ + classname. i.e. no spaces, punctuation or reserved keywords. + */ +#ifndef NDEBUG +# define StaticAssert(test, errormsg) \ + do { \ + struct ERROR_##errormsg {}; \ + typedef ww::compile_time_check< (test) != 0 > tmplimpl; \ + tmplimpl aTemp = tmplimpl(ERROR_##errormsg()); \ + sizeof(aTemp); \ + } while (0) +#else +# define StaticAssert(test, errormsg) \ + do {} while (0) +#endif + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |