suyu/externals/vcpkg/packages/boost-bind_x64-windows/include/boost/bind/arg.hpp
2024-03-05 16:42:40 +08:00

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#ifndef BOOST_BIND_ARG_HPP_INCLUDED
#define BOOST_BIND_ARG_HPP_INCLUDED
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
//
// bind/arg.hpp
//
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
//
// 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)
//
// See http://www.boost.org/libs/bind/bind.html for documentation.
//
#include <boost/config.hpp>
#include <boost/is_placeholder.hpp>
namespace boost
{
template<bool Eq> struct _arg_eq
{
};
template<> struct _arg_eq<true>
{
typedef void type;
};
template< int I > struct arg
{
BOOST_CONSTEXPR arg()
{
}
template< class T > BOOST_CONSTEXPR arg( T const & /* t */, typename _arg_eq< I == is_placeholder<T>::value >::type * = 0 )
{
}
};
template< int I > BOOST_CONSTEXPR bool operator==( arg<I> const &, arg<I> const & )
{
return true;
}
#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
template< int I > struct is_placeholder< arg<I> >
{
enum _vt { value = I };
};
template< int I > struct is_placeholder< arg<I> (*) () >
{
enum _vt { value = I };
};
#endif
} // namespace boost
#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED