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boost_mpl/include/boost/mpl/int_c.hpp
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2002-09-15 22:13:24 +00:00

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//-----------------------------------------------------------------------------
// boost mpl/int_c.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2000-02
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#ifndef BOOST_MPL_INT_C_HPP_INCLUDED
#define BOOST_MPL_INT_C_HPP_INCLUDED
#include "boost/config.hpp"
namespace boost {
namespace mpl {
template< int N >
struct int_c
{
BOOST_STATIC_CONSTANT(int, value = N);
typedef int_c type;
typedef int value_type;
// have to #ifdef here: some compilers don't like the 'N + 1' form (MSVC),
// while some other don't like 'value + 1' (Borland)
#if !defined(__BORLANDC__)
typedef int_c<value + 1> next;
typedef int_c<value - 1> prior;
#else
typedef int_c<N + 1> next;
typedef int_c<N - 1> prior;
#endif
operator int() const { return this->value; }
};
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_INT_C_HPP_INCLUDED