35 lines
555 B
C++
35 lines
555 B
C++
//
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// arg_copy_test.cpp - copying a custom placeholder _1 to arg<1>
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//
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// Copyright 2016 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/is_placeholder.hpp>
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#include <boost/bind/arg.hpp>
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//
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template<int I> struct ph
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{
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};
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namespace boost
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{
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template<int I> struct is_placeholder< ::ph<I> >
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{
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enum _vt { value = I };
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};
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} // namespace boost
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int main()
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{
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boost::arg<1> a1 = ph<1>();
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(void)a1;
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}
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