63e88f80
 Hu Chunming
提交三方库
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/* Boost interval/io.hpp header file
*
* This file is only meant to provide a quick
* implementation of the output operator. It is
* provided for test programs that aren't even
* interested in the precision of the results.
* A real progam should define its own operators
* and never include this header.
*
* Copyright 2003 Guillaume Melquiond
*
* 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)
*/
#ifndef BOOST_NUMERIC_INTERVAL_IO_HPP
#define BOOST_NUMERIC_INTERVAL_IO_HPP
#include <boost/numeric/interval/interval.hpp>
#include <boost/numeric/interval/utility.hpp>
#include <ostream>
namespace boost {
namespace numeric {
template<class CharType, class CharTraits, class T, class Policies>
std::basic_ostream<CharType, CharTraits> &operator<<
(std::basic_ostream<CharType, CharTraits> &stream,
interval<T, Policies> const &value)
{
if (empty(value))
return stream << "[]";
else
return stream << '[' << lower(value) << ',' << upper(value) << ']';
}
} // namespace numeric
} // namespace boost
#endif // BOOST_NUMERIC_INTERVAL_IO_HPP
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