arma_static_assert.hpp

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00001 // Copyright (C) 2010 NICTA and the authors listed below
00002 // http://nicta.com.au
00003 // 
00004 // Authors:
00005 // - Conrad Sanderson (conradsand at ieee dot org)
00006 // 
00007 // This file is part of the Armadillo C++ library.
00008 // It is provided without any warranty of fitness
00009 // for any purpose. You can redistribute this file
00010 // and/or modify it under the terms of the GNU
00011 // Lesser General Public License (LGPL) as published
00012 // by the Free Software Foundation, either version 3
00013 // of the License or (at your option) any later version.
00014 // (see http://www.opensource.org/licenses for more info)
00015 
00016 
00017 //! \addtogroup arma_static_assert
00018 //! @{
00019 
00020 
00021 
00022 //! Classes for primitive compile time assertions (until the next version of C++)
00023 template<bool> struct arma_static_assert;
00024 template<>     struct arma_static_assert<true> {};
00025 
00026 
00027 template<bool val>
00028 struct arma_type_check
00029   {
00030   arma_inline static void apply()
00031     {
00032     arma_static_assert<!val> ERROR___INCORRECT_TYPE;
00033     ERROR___INCORRECT_TYPE = ERROR___INCORRECT_TYPE;
00034     }
00035   };
00036 
00037 
00038 
00039 //! @}