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// Boost.Function library
// Copyright Douglas Gregor 2002-2003. Use, modification and
// distribution is subject to 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)
// For more information, see http://www.boost.org
#include <boost/function.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>
#include <boost/core/lightweight_test.hpp>
#include <iostream>
#include <cstdlib>
static unsigned
func_impl(int arg1, bool arg2, double arg3)
{
using namespace std;
return abs (static_cast<int>((arg2 ? arg1 : 2 * arg1) * arg3));
}
int main()
{
using boost::function;
using namespace boost::lambda;
function <unsigned(bool, double)> f1 = bind(func_impl, 15, _1, _2);
BOOST_TEST_EQ( f1(true, 2.0), 30u );
function <unsigned(double)> f2 = boost::lambda::bind(f1, false, _1);
BOOST_TEST_EQ( f2(2.0), 60u );
function <unsigned()> f3 = boost::lambda::bind(f2, 4.0);
BOOST_TEST_EQ( f3(), 120u );
return boost::report_errors();
}
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