// 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; 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()); ch xdigits[16]; { char szdigits[] = "0123456789ABCDEF"; ctype.widen(szdigits, szdigits+16, xdigits); } ch*const xdigits_end = xdigits+16; ch c; for (std::size_t i=0; i<u.size() && is; ++i) { is >> c; c = ctype.toupper(c); ch* f = std::find(xdigits, xdigits_end, c); if (f == xdigits_end) { is.setstate(std::ios_base::failbit); break; } unsigned char byte = static_cast<unsigned char>(std::distance(&xdigits[0], f)); is >> c; c = ctype.toupper(c); f = std::find(xdigits, xdigits_end, c); if (f == xdigits_end) { is.setstate(std::ios_base::failbit); break; } byte <<= 4; byte |= static_cast<unsigned char>(std::distance(&xdigits[0], f)); data[i] = byte; if (is) { if (i == 3 || i == 5 || i == 7 || i == 9) { is >> c; if (c != is.widen('-')) is.setstate(std::ios_base::failbit); } } } if (is) { std::copy(data, data+16, u.begin()); } } return is; } namespace detail { inline char to_char(size_t i) { if (i <= 9) { return static_cast<char>('0' + i); } else { return static_cast<char>('a' + (i-10)); } } inline wchar_t to_wchar(size_t i) { if (i <= 9) { return static_cast<wchar_t>(L'0' + i); } else { return static_cast<wchar_t>(L'a' + (i-10)); } } } // namespace detail inline std::string to_string(uuid const& u) { std::string result; result.reserve(36); std::size_t i=0; for (uuid::const_iterator it_data = u.begin(); it_data!=u.end(); ++it_data, ++i) { const size_t hi = ((*it_data) >> 4) & 0x0F; result += detail::to_char(hi); const size_t lo = (*it_data) & 0x0F; result += detail::to_char(lo); if (i == 3 || i == 5 || i == 7 || i == 9) { result += '-'; } } return result; } #ifndef BOOST_NO_STD_WSTRING inline std::wstring to_wstring(uuid const& u) { std::wstring result; result.reserve(36); std::size_t i=0; for (uuid::const_iterator it_data = u.begin(); it_data!=u.end(); ++it_data, ++i) { const size_t hi = ((*it_data) >> 4) & 0x0F; result += detail::to_wchar(hi); const size_t lo = (*it_data) & 0x0F; result += detail::to_wchar(lo); if (i == 3 || i == 5 || i == 7 || i == 9) { result += L'-'; } } return result; } #endif }} //namespace boost::uuids #if defined(_MSC_VER) #pragma warning(pop) // Restore warnings to previous state. #endif #endif // BOOST_UUID_IO_HPP