forked from boostorg/mpl
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
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// + file: libs/mpl/test/aux_/template_arity.cpp
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// + last modified: 10/jul/03
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// Copyright (c) 2000-03
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// Aleksey Gurtovoy
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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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//
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// See http://www.boost.org/libs/mpl for documentation.
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#include "boost/mpl/aux_/template_arity.hpp"
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#include "boost/static_assert.hpp"
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# if defined(BOOST_EXTENDED_TEMPLATE_PARAMETERS_MATCHING)
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using namespace boost::mpl;
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struct my {};
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template< typename T1 > struct my1 {};
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template< typename T1, typename T2 = void > struct my2 {};
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int main()
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{
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BOOST_STATIC_ASSERT((aux::template_arity<my>::value == -1));
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BOOST_STATIC_ASSERT((aux::template_arity< my1<int> >::value == 1));
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BOOST_STATIC_ASSERT((aux::template_arity< my2<int,long> >::value == 2));
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BOOST_STATIC_ASSERT((aux::template_arity< my2<int> >::value == 2));
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return 0;
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}
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# endif
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