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Diffstat (limited to 'src/debug/nvwa/static_assert.h')
-rw-r--r-- | src/debug/nvwa/static_assert.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/debug/nvwa/static_assert.h b/src/debug/nvwa/static_assert.h new file mode 100644 index 000000000..877ef0f97 --- /dev/null +++ b/src/debug/nvwa/static_assert.h @@ -0,0 +1,62 @@ +// -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- +// vim:tabstop=4:shiftwidth=4:expandtab: + +/* + * Copyright (C) 2004-2013 Wu Yongwei <adah at users dot sourceforge dot net> + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any + * damages arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute + * it freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must + * not claim that you wrote the original software. If you use this + * software in a product, an acknowledgement in the product + * documentation would be appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must + * not be misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source + * distribution. + * + * This file is part of Stones of Nvwa: + * http://sourceforge.net/projects/nvwa + * + */ + +/** + * @file static_assert.h + * + * Template class to check validity duing compile time (adapted from Loki). + * + * @date 2013-09-07 + */ + +#ifndef STATIC_ASSERT + +#include "debug/nvwa/c++11.h" + +#if HAVE_CXX11_STATIC_ASSERT + +#define STATIC_ASSERT(_Expr, _Msg) static_assert(_Expr, #_Msg) + +#else + +namespace nvwa { + +template <bool> struct compile_time_error; +template <> struct compile_time_error<true> {}; + +#define STATIC_ASSERT(_Expr, _Msg) \ + { \ + nvwa::compile_time_error<((_Expr) != 0)> ERROR_##_Msg; \ + (void)ERROR_##_Msg; \ + } + +} + +#endif // HAVE_CXX11_STATIC_ASSERT + +#endif // STATIC_ASSERT |