bind/test/protect_test.cpp

282 lines
18 KiB
C++

// protect_test.cpp
//
// Copyright (c) 2009 Steven Watanabe
//
// 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)
#include <boost/bind/protect.hpp>
#include <boost/bind.hpp>
#include <boost/detail/lightweight_test.hpp>
int f(int x)
{
return x;
}
int& g(int& x)
{
return x;
}
template<class T>
const T& constify(const T& arg)
{
return arg;
}
int main()
{
int i[9] = {0,1,2,3,4,5,6,7,8};
// non-const
// test nullary
BOOST_TEST(boost::protect(boost::bind(f, 1))() == 1);
// test lvalues
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3], i[4]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3], i[4]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3], i[4]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3], i[4]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _5))(i[0], i[1], i[2], i[3], i[4]) == &i[4]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _5))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[4]);
BOOST_TEST(&boost::protect(boost::bind(g, _6))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[5]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _5))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[4]);
BOOST_TEST(&boost::protect(boost::bind(g, _6))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[5]);
BOOST_TEST(&boost::protect(boost::bind(g, _7))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[6]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _5))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[4]);
BOOST_TEST(&boost::protect(boost::bind(g, _6))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[5]);
BOOST_TEST(&boost::protect(boost::bind(g, _7))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[6]);
BOOST_TEST(&boost::protect(boost::bind(g, _8))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[7]);
BOOST_TEST(&boost::protect(boost::bind(g, _1))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[0]);
BOOST_TEST(&boost::protect(boost::bind(g, _2))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[1]);
BOOST_TEST(&boost::protect(boost::bind(g, _3))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[2]);
BOOST_TEST(&boost::protect(boost::bind(g, _4))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[3]);
BOOST_TEST(&boost::protect(boost::bind(g, _5))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[4]);
BOOST_TEST(&boost::protect(boost::bind(g, _6))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[5]);
BOOST_TEST(&boost::protect(boost::bind(g, _7))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[6]);
BOOST_TEST(&boost::protect(boost::bind(g, _8))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[7]);
BOOST_TEST(&boost::protect(boost::bind(g, _9))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[8]);
// test rvalues
BOOST_TEST(boost::protect(boost::bind(f, _1))(0) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3, 4) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3, 4) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3, 4) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3, 4) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _5))(0, 1, 2, 3, 4) == 4);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3, 4, 5) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3, 4, 5) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3, 4, 5) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3, 4, 5) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _5))(0, 1, 2, 3, 4, 5) == 4);
BOOST_TEST(boost::protect(boost::bind(f, _6))(0, 1, 2, 3, 4, 5) == 5);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3, 4, 5, 6) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3, 4, 5, 6) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3, 4, 5, 6) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3, 4, 5, 6) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _5))(0, 1, 2, 3, 4, 5, 6) == 4);
BOOST_TEST(boost::protect(boost::bind(f, _6))(0, 1, 2, 3, 4, 5, 6) == 5);
BOOST_TEST(boost::protect(boost::bind(f, _7))(0, 1, 2, 3, 4, 5, 6) == 6);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3, 4, 5, 6, 7) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3, 4, 5, 6, 7) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3, 4, 5, 6, 7) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3, 4, 5, 6, 7) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _5))(0, 1, 2, 3, 4, 5, 6, 7) == 4);
BOOST_TEST(boost::protect(boost::bind(f, _6))(0, 1, 2, 3, 4, 5, 6, 7) == 5);
BOOST_TEST(boost::protect(boost::bind(f, _7))(0, 1, 2, 3, 4, 5, 6, 7) == 6);
BOOST_TEST(boost::protect(boost::bind(f, _8))(0, 1, 2, 3, 4, 5, 6, 7) == 7);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _3))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 2);
BOOST_TEST(boost::protect(boost::bind(f, _4))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 3);
BOOST_TEST(boost::protect(boost::bind(f, _5))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 4);
BOOST_TEST(boost::protect(boost::bind(f, _6))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 5);
BOOST_TEST(boost::protect(boost::bind(f, _7))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 6);
BOOST_TEST(boost::protect(boost::bind(f, _8))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 7);
BOOST_TEST(boost::protect(boost::bind(f, _9))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 8);
// test mixed perfect forwarding
BOOST_TEST(boost::protect(boost::bind(f, _1))(i[0], 1) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(i[0], 1) == 1);
BOOST_TEST(boost::protect(boost::bind(f, _1))(0, i[1]) == 0);
BOOST_TEST(boost::protect(boost::bind(f, _2))(0, i[1]) == 1);
// const
// test nullary
BOOST_TEST(constify(constify(boost::protect(boost::bind(f, 1))))() == 1);
// test lvalues
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _1))))(i[0]) == &i[0]);
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _1))))(i[0], i[1]) == &i[0]);
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _2))))(i[0], i[1]) == &i[1]);
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _1))))(i[0], i[1], i[2]) == &i[0]);
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _2))))(i[0], i[1], i[2]) == &i[1]);
BOOST_TEST(&constify(constify(boost::protect(boost::bind(g, _3))))(i[0], i[1], i[2]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3], i[4]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3], i[4]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3], i[4]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3], i[4]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _5)))(i[0], i[1], i[2], i[3], i[4]) == &i[4]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _5)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[4]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _6)))(i[0], i[1], i[2], i[3], i[4], i[5]) == &i[5]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _5)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[4]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _6)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[5]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _7)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6]) == &i[6]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _5)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[4]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _6)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[5]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _7)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[6]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _8)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7]) == &i[7]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _1)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[0]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _2)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[1]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _3)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[2]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _4)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[3]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _5)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[4]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _6)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[5]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _7)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[6]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _8)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[7]);
BOOST_TEST(&constify(boost::protect(boost::bind(g, _9)))(i[0], i[1], i[2], i[3], i[4], i[5], i[6], i[7], i[8]) == &i[8]);
// test rvalues
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3, 4) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3, 4) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3, 4) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3, 4) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _5)))(0, 1, 2, 3, 4) == 4);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3, 4, 5) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3, 4, 5) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3, 4, 5) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3, 4, 5) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _5)))(0, 1, 2, 3, 4, 5) == 4);
BOOST_TEST(constify(boost::protect(boost::bind(f, _6)))(0, 1, 2, 3, 4, 5) == 5);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3, 4, 5, 6) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3, 4, 5, 6) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3, 4, 5, 6) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3, 4, 5, 6) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _5)))(0, 1, 2, 3, 4, 5, 6) == 4);
BOOST_TEST(constify(boost::protect(boost::bind(f, _6)))(0, 1, 2, 3, 4, 5, 6) == 5);
BOOST_TEST(constify(boost::protect(boost::bind(f, _7)))(0, 1, 2, 3, 4, 5, 6) == 6);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3, 4, 5, 6, 7) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3, 4, 5, 6, 7) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3, 4, 5, 6, 7) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3, 4, 5, 6, 7) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _5)))(0, 1, 2, 3, 4, 5, 6, 7) == 4);
BOOST_TEST(constify(boost::protect(boost::bind(f, _6)))(0, 1, 2, 3, 4, 5, 6, 7) == 5);
BOOST_TEST(constify(boost::protect(boost::bind(f, _7)))(0, 1, 2, 3, 4, 5, 6, 7) == 6);
BOOST_TEST(constify(boost::protect(boost::bind(f, _8)))(0, 1, 2, 3, 4, 5, 6, 7) == 7);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _3)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 2);
BOOST_TEST(constify(boost::protect(boost::bind(f, _4)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 3);
BOOST_TEST(constify(boost::protect(boost::bind(f, _5)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 4);
BOOST_TEST(constify(boost::protect(boost::bind(f, _6)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 5);
BOOST_TEST(constify(boost::protect(boost::bind(f, _7)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 6);
BOOST_TEST(constify(boost::protect(boost::bind(f, _8)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 7);
BOOST_TEST(constify(boost::protect(boost::bind(f, _9)))(0, 1, 2, 3, 4, 5, 6, 7, 8) == 8);
// test mixed perfect forwarding
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(i[0], 1) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(i[0], 1) == 1);
BOOST_TEST(constify(boost::protect(boost::bind(f, _1)))(0, i[1]) == 0);
BOOST_TEST(constify(boost::protect(boost::bind(f, _2)))(0, i[1]) == 1);
return boost::report_errors();
}