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42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
//-----------------------------------------------------------------------------
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// libs mpl/test/index_of.cpp source file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2003
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// Eric Friedman
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#include "boost/mpl/index_of.hpp"
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#include "boost/static_assert.hpp"
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#include "boost/mpl/list.hpp"
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#include "boost/mpl/void.hpp"
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namespace mpl = boost::mpl;
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int test_main(int , char* [])
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{
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typedef mpl::list< int, double, float >::type types;
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typedef mpl::index_of< types, int >::type index_of_int;
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typedef mpl::index_of< types, double >::type index_of_double;
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typedef mpl::index_of< types, float >::type index_of_float;
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typedef mpl::index_of< types, char >::type index_of_char;
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BOOST_STATIC_ASSERT(( index_of_int::value == 0 ));
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BOOST_STATIC_ASSERT(( index_of_double::value == 1 ));
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BOOST_STATIC_ASSERT(( index_of_float::value == 2 ));
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BOOST_STATIC_ASSERT(( mpl::is_void_< index_of_char >::value ));
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return 0;
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}
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