77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
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// (C) Copyright John Maddock 2005.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_TR1_VERIFY_FUNCTOR_HPP
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#define BOOST_TR1_VERIFY_FUNCTOR_HPP
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#include <boost/type_traits/is_base_and_derived.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/static_assert.hpp>
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#include "verify_return.hpp"
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template <class F, class R>
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void verify_nullary_functor(F f, R)
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{
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verify_return_type(f(), R());
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}
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template <class F, class B>
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void verify_unary_functor(F f, B)
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{
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#ifndef NO_INHERT_TEST
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BOOST_STATIC_ASSERT( (::boost::is_base_and_derived<B, F>::value));
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#endif
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typedef typename B::argument_type arg_type;
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typedef typename B::result_type result_type;
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typedef typename F::argument_type b_arg_type;
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typedef typename F::result_type b_result_type;
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BOOST_STATIC_ASSERT((::boost::is_same<arg_type, b_arg_type>::value));
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BOOST_STATIC_ASSERT((::boost::is_same<result_type, b_result_type>::value));
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static arg_type a;
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typedef typename boost::remove_reference<result_type>::type result_value;
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verify_return_type(f(a), result_value());
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}
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template <class F, class B>
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void verify_field_functor(F f, B)
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{
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// same as verify_unary_functor, but no nested result_type
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// because it depends on the argument type.
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typedef typename B::argument_type arg_type;
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typedef typename B::result_type result_type;
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static arg_type a;
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typedef typename boost::remove_reference<result_type>::type result_value;
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verify_return_type(f(a), result_value());
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result_type r = f(a);
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(void)r;
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}
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template <class F, class B>
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void verify_binary_functor(F f, B)
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{
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#ifndef NO_INHERT_TEST
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BOOST_STATIC_ASSERT( (::boost::is_base_and_derived<B, F>::value));
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#endif
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typedef typename B::first_argument_type b_arg1_type;
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typedef typename B::second_argument_type b_arg2_type;
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typedef typename B::result_type b_result_type;
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typedef typename F::first_argument_type arg1_type;
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typedef typename F::second_argument_type arg2_type;
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typedef typename F::result_type result_type;
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BOOST_STATIC_ASSERT((::boost::is_same<arg1_type, b_arg1_type>::value));
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BOOST_STATIC_ASSERT((::boost::is_same<arg2_type, b_arg2_type>::value));
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BOOST_STATIC_ASSERT((::boost::is_same<result_type, b_result_type>::value));
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static arg1_type a;
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static arg2_type b;
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verify_return_type(f(a, b), result_type());
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}
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#endif
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