r285:d8dc5acf739b
Sat, 27 Sep 2008 14:11:22
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/* -*- mode: C++; indent-tabs-mode: nil; -*- |
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* |
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* This file is a part of LEMON, a generic C++ optimization library. |
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* |
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* Copyright (C) 2003-2008 |
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* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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* (Egervary Research Group on Combinatorial Optimization, EGRES). |
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* |
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* Permission to use, modify and distribute this software is granted |
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* provided that this copyright notice appears in all copies. For |
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* precise terms see the accompanying LICENSE file. |
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* |
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* This software is provided "AS IS" with no warranty of any kind, |
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* express or implied, and with no claim as to its suitability for any |
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* purpose. |
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* |
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*/ |
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// This file contains a modified version of the concept checking |
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// utility from BOOST. |
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// See the appropriate copyright notice below. |
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// (C) Copyright Jeremy Siek 2000. |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// Revision History: |
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// 05 May 2001: Workarounds for HP aCC from Thomas Matelich. (Jeremy Siek) |
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// 02 April 2001: Removed limits header altogether. (Jeremy Siek) |
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// 01 April 2001: Modified to use new <boost/limits.hpp> header. (JMaddock) |
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// |
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// See http://www.boost.org/libs/concept_check for documentation. |
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// The contents of this file was inspired by the concept checking |
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// utility of the BOOST library (http://www.boost.org). |
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///\file |
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///\brief Basic utilities for concept checking. |
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/// |
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#ifndef LEMON_CONCEPT_CHECK_H |
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#define LEMON_CONCEPT_CHECK_H |
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namespace lemon {
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/* |
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"inline" is used for ignore_unused_variable_warning() |
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and function_requires() to make sure there is no |
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overtarget with g++. |
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*/ |
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template <class T> inline void ignore_unused_variable_warning(const T&) { }
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///\e |
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template <class Concept> |
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inline void function_requires() |
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{
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#if !defined(NDEBUG) |
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void (Concept::*x)() = & Concept::constraints; |
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ignore_unused_variable_warning(x); |
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#endif |
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} |
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///\e |
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template <typename Concept, typename Type> |
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inline void checkConcept() {
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#if !defined(NDEBUG) |
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typedef typename Concept::template Constraints<Type> ConceptCheck; |
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void (ConceptCheck::*x)() = & ConceptCheck::constraints; |
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ignore_unused_variable_warning(x); |
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#endif |
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} |
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} // namespace lemon |
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#endif // LEMON_CONCEPT_CHECK_H |
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