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// Boost uuid_io.hpp header file  ----------------------------------------------//

// Copyright 2009 Andy Tompkins.
// 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)

// Revision History
//  20 Mar 2009 - Initial Revision
//  28 Nov 2009 - disabled deprecated warnings for MSVC

#ifndef BOOST_UUID_IO_HPP
#define BOOST_UUID_IO_HPP

#include <boost/uuid/uuid.hpp>
#include <ios>
#include <ostream>
#include <istream>
#include <boost/io/ios_state.hpp>
#include <locale>
#include <algorithm>

#if defined(_MSC_VER)
#pragma warning(push) // Save warning settings.
#pragma warning(disable : 4996) // Disable deprecated std::ctype<char>::widen, std::copy
#endif

namespace boost {
namespace uuids {

template <typename ch, typename char_traits>
    std::basic_ostream<ch, char_traits>& operator<<(std::basic_ostream<ch, char_traits> &os, uuid const& u)
{
    io::ios_flags_saver flags_saver(os);
    io::basic_ios_fill_saver<ch, char_traits> fill_saver(os);

    const typename std::basic_ostream<ch, char_traits>::sentry ok(os);
    if (ok) {
        const std::streamsize width = os.width(0);
        const std::streamsize uuid_width = 36;
        const std::ios_base::fmtflags flags = os.flags();
        const typename std::basic_ios<ch, char_traits>::char_type fill = os.fill();
        if (flags & (std::ios_base::right | std::ios_base::internal)) {
            for (std::streamsize i=uuid_width; i<width; i++) {
                os << fill;
            }
        }

        os << std::hex << std::right;
        os.fill(os.widen('0'));

        std::size_t i=0;
        for (uuid::const_iterator i_data = u.begin(); i_data!=u.end(); ++i_data, ++i) {
            os.width(2);
            os << static_cast<unsigned int>(*i_data);
            if (i == 3 || i == 5 || i == 7 || i == 9) {
                os << os.widen('-');
            }
        }

        if (flags & std::ios_base::left) {
            for (std::streamsize s=uuid_width; s<width; s++) {
                os << fill;
            }
        }

        os.width(0); //used the width so reset it
    }
    return os;
}

template <typename ch, typename char_traits>
    std::basic_istream<ch, char_traits>& operator>>(std::basic_istream<ch, char_traits> &is, uuid &u)
{
    const typename std::basic_istream<ch, char_traits>::sentry ok(is);
    if (ok) {
        unsigned char data[16];

        typedef std::ctype<ch> ctype_t;
        ctype_t const& ctype = std::use_facet<ctype_t>(is.getloc());