1 // (C) Copyright Jeremy Siek, David Abrahams 2000-2006. 2 // Distributed under the Boost Software License, Version 1.0. (See 3 // accompanying file LICENSE_1_0.txt or copy at 4 // http://www.boost.org/LICENSE_1_0.txt) 5 // 6 // Change Log: 7 // 20 Jan 2001 - Added warning suppression (David Abrahams) 8 9 #include <boost/concept_check.hpp> 10 11 /* 12 13 This file verifies that class_requires of the Boost Concept Checking 14 Library catches errors when it is supposed to. 15 16 */ 17 18 struct foo { }; 19 20 template <class T> 21 class class_requires_test 22 { 23 BOOST_CONCEPT_ASSERT((boost::EqualityComparable<foo>)); 24 }; 25 26 int main()27main() 28 { 29 class_requires_test<int> x; 30 (void)x; // suppress unused variable warning 31 return 0; 32 } 33