// Copyright Kevlin Henney, 2000-2005.

// Copyright Alexander Nasonov, 2006-2010.

// Copyright Antony Polukhin, 2011-2014.

//

// 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)

//

// what:  lexical_cast custom keyword cast

// who:   contributed by Kevlin Henney,

//        enhanced with contributions from Terje Slettebo,

//        with additional fixes and suggestions from Gennaro Prota,

//        Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,

//        Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,

//        Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters

// when:  November 2000, March 2003, June 2005, June 2006, March 2011 - 2014

#ifndef BOOST_LEXICAL_CAST_INCLUDED

#define BOOST_LEXICAL_CAST_INCLUDED

#include <boost/config.hpp>

#ifdef BOOST_HAS_PRAGMA_ONCE

#   pragma once

#endif

#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)

#define BOOST_LCAST_NO_WCHAR_T

#endif

#include <boost/range/iterator_range_core.hpp>

#include <boost/lexical_cast/bad_lexical_cast.hpp>

#include <boost/lexical_cast/try_lexical_convert.hpp>

namespace boost 

{

    template <typename Target, typename Source>

    inline Target lexical_cast(const Source &arg)

    {

        Target result = Target();

        if (!boost::conversion::detail::try_lexical_convert(arg, result)) {

            boost::conversion::detail::throw_bad_cast<Source, Target>();

        }

        return result;

    }

    template <typename Target>

    inline Target lexical_cast(const char* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const char*>(chars, chars + count)

        );

    }

    template <typename Target>

    inline Target lexical_cast(const unsigned char* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const unsigned char*>(chars, chars + count)

        );

    }

    template <typename Target>

    inline Target lexical_cast(const signed char* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const signed char*>(chars, chars + count)

        );

    }

#ifndef BOOST_LCAST_NO_WCHAR_T

    template <typename Target>

    inline Target lexical_cast(const wchar_t* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const wchar_t*>(chars, chars + count)

        );

    }

#endif

#ifndef BOOST_NO_CXX11_CHAR16_T

    template <typename Target>

    inline Target lexical_cast(const char16_t* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const char16_t*>(chars, chars + count)

        );

    }

#endif

#ifndef BOOST_NO_CXX11_CHAR32_T

    template <typename Target>

    inline Target lexical_cast(const char32_t* chars, std::size_t count)

    {

        return ::boost::lexical_cast<Target>(

            ::boost::iterator_range<const char32_t*>(chars, chars + count)

        );

    }

#endif

} // namespace boost

#undef BOOST_LCAST_NO_WCHAR_T

#endif // BOOST_LEXICAL_CAST_INCLUDED