distance.cpp

来自「Boost provides free peer-reviewed portab」· C++ 代码 · 共 38 行

// Copyright Aleksey Gurtovoy 2000-2004
//
// Distributed under the Boost Software License, Version 1.0. 
// (See accompanying file LICENSE_1_0.txt or copy at 
// http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/mpl for documentation.

// $Id: distance.cpp 49268 2008-10-11 06:26:17Z agurtovoy $
// $Date: 2008-10-11 02:26:17 -0400 (Sat, 11 Oct 2008) $
// $Revision: 49268 $

#include <boost/mpl/distance.hpp>
#include <boost/mpl/list.hpp>
#include <boost/mpl/range_c.hpp>

#include <boost/mpl/aux_/test.hpp>


MPL_TEST_CASE()
{
    typedef list<char,short,int,long>::type list;
    typedef begin<list>::type first;
    typedef end<list>::type last;
    
    MPL_ASSERT_RELATION( (mpl::distance<first,last>::value), ==, 4 );
}

MPL_TEST_CASE()
{
    typedef range_c<int,0,10>::type range;
    typedef begin<range>::type first;
    typedef end<range>::type last;
    
    MPL_ASSERT_RELATION( (mpl::distance<first,last>::value), ==, 10 );
}