--- /dev/null
+// Windows implementation of system_error_category
+//
+// Copyright Beman Dawes 2002, 2006
+// Copyright (c) Microsoft Corporation 2014
+// Copyright 2018 Peter Dimov
+//
+// 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)
+//
+// See library home page at http://www.boost.org/libs/system
+
+#include <boost/winapi/error_codes.hpp>
+#include <boost/winapi/error_handling.hpp>
+#include <boost/winapi/character_code_conversion.hpp>
+#include <boost/winapi/local_memory.hpp>
+#include <cstdio>
+
+//
+
+namespace boost
+{
+
+namespace system
+{
+
+namespace detail
+{
+
+#if ( defined(_MSC_VER) && _MSC_VER < 1900 ) || ( defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) )
+
+inline char const * unknown_message_win32( int ev, char * buffer, std::size_t len )
+{
+# if defined( BOOST_MSVC )
+# pragma warning( push )
+# pragma warning( disable: 4996 )
+# endif
+
+ _snprintf( buffer, len - 1, "Unknown error (%d)", ev );
+
+ buffer[ len - 1 ] = 0;
+ return buffer;
+
+# if defined( BOOST_MSVC )
+# pragma warning( pop )
+# endif
+}
+
+#else
+
+inline char const * unknown_message_win32( int ev, char * buffer, std::size_t len )
+{
+ std::snprintf( buffer, len, "Unknown error (%d)", ev );
+ return buffer;
+}
+
+#endif
+
+inline boost::winapi::UINT_ message_cp_win32()
+{
+#if defined(BOOST_SYSTEM_USE_UTF8)
+
+ return boost::winapi::CP_UTF8_;
+
+#else
+
+ return boost::winapi::CP_ACP_;
+
+#endif
+}
+
+inline char const * system_category_message_win32( int ev, char * buffer, std::size_t len ) BOOST_NOEXCEPT
+{
+ if( len == 0 )
+ {
+ return buffer;
+ }
+
+ if( len == 1 )
+ {
+ buffer[0] = 0;
+ return buffer;
+ }
+
+ boost::winapi::UINT_ const code_page = message_cp_win32();
+
+ int r = 0;
+
+#if !defined(BOOST_NO_ANSI_APIS)
+
+ if( code_page == boost::winapi::CP_ACP_ )
+ {
+ using namespace boost::winapi;
+
+ DWORD_ retval = boost::winapi::FormatMessageA(
+ FORMAT_MESSAGE_FROM_SYSTEM_ | FORMAT_MESSAGE_IGNORE_INSERTS_,
+ NULL,
+ ev,
+ MAKELANGID_( LANG_NEUTRAL_, SUBLANG_DEFAULT_ ), // Default language
+ buffer,
+ static_cast<DWORD_>( len ),
+ NULL
+ );
+
+ r = static_cast<int>( retval );
+ }
+ else
+
+#endif
+
+ {
+ using namespace boost::winapi;
+
+ wchar_t * lpMsgBuf = 0;
+
+ DWORD_ retval = boost::winapi::FormatMessageW(
+ FORMAT_MESSAGE_ALLOCATE_BUFFER_ | FORMAT_MESSAGE_FROM_SYSTEM_ | FORMAT_MESSAGE_IGNORE_INSERTS_,
+ NULL,
+ ev,
+ MAKELANGID_( LANG_NEUTRAL_, SUBLANG_DEFAULT_ ), // Default language
+ (LPWSTR_) &lpMsgBuf,
+ 0,
+ NULL
+ );
+
+ if( retval != 0 )
+ {
+ r = boost::winapi::WideCharToMultiByte( code_page, 0, lpMsgBuf, -1, buffer, static_cast<int>( len ), NULL, NULL );
+ boost::winapi::LocalFree( lpMsgBuf );
+ if ( r != 0 ) --r; // exclude null terminator
+ }
+ }
+
+ if( r == 0 )
+ {
+ return unknown_message_win32( ev, buffer, len );
+ }
+
+ while( r > 0 && ( buffer[ r-1 ] == '\n' || buffer[ r-1 ] == '\r' ) )
+ {
+ buffer[ --r ] = 0;
+ }
+
+ if( r > 0 && buffer[ r-1 ] == '.' )
+ {
+ buffer[ --r ] = 0;
+ }
+
+ return buffer;
+}
+
+struct local_free
+{
+ void * p_;
+
+ ~local_free()
+ {
+ boost::winapi::LocalFree( p_ );
+ }
+};
+
+inline std::string unknown_message_win32( int ev )
+{
+ char buffer[ 38 ];
+ return unknown_message_win32( ev, buffer, sizeof( buffer ) );
+}
+
+inline std::string system_category_message_win32( int ev )
+{
+ using namespace boost::winapi;
+
+ wchar_t * lpMsgBuf = 0;
+
+ DWORD_ retval = boost::winapi::FormatMessageW(
+ FORMAT_MESSAGE_ALLOCATE_BUFFER_ | FORMAT_MESSAGE_FROM_SYSTEM_ | FORMAT_MESSAGE_IGNORE_INSERTS_,
+ NULL,
+ ev,
+ MAKELANGID_( LANG_NEUTRAL_, SUBLANG_DEFAULT_ ), // Default language
+ (LPWSTR_) &lpMsgBuf,
+ 0,
+ NULL
+ );
+
+ if( retval == 0 )
+ {
+ return unknown_message_win32( ev );
+ }
+
+ local_free lf_ = { lpMsgBuf };
+ (void)lf_;
+
+ UINT_ const code_page = message_cp_win32();
+
+ int r = boost::winapi::WideCharToMultiByte( code_page, 0, lpMsgBuf, -1, 0, 0, NULL, NULL );
+
+ if( r == 0 )
+ {
+ return unknown_message_win32( ev );
+ }
+
+ std::string buffer( r, char() );
+
+ r = boost::winapi::WideCharToMultiByte( code_page, 0, lpMsgBuf, -1, &buffer[0], r, NULL, NULL );
+
+ if( r == 0 )
+ {
+ return unknown_message_win32( ev );
+ }
+
+ --r; // exclude null terminator
+
+ while( r > 0 && ( buffer[ r-1 ] == '\n' || buffer[ r-1 ] == '\r' ) )
+ {
+ --r;
+ }
+
+ if( r > 0 && buffer[ r-1 ] == '.' )
+ {
+ --r;
+ }
+
+ buffer.resize( r );
+
+ return buffer;
+}
+
+inline error_condition system_category_default_error_condition_win32( int ev ) BOOST_NOEXCEPT
+{
+ // When using the Windows Runtime, most system errors are reported as HRESULTs.
+ // We want to map the common Win32 errors to their equivalent error condition,
+ // whether or not they are reported via an HRESULT.
+
+#define BOOST_SYSTEM_FAILED(hr) ((hr) < 0)
+#define BOOST_SYSTEM_HRESULT_FACILITY(hr) (((hr) >> 16) & 0x1fff)
+#define BOOST_SYSTEM_HRESULT_CODE(hr) ((hr) & 0xFFFF)
+#define BOOST_SYSTEM_FACILITY_WIN32 7
+
+ if( BOOST_SYSTEM_FAILED( ev ) && BOOST_SYSTEM_HRESULT_FACILITY( ev ) == BOOST_SYSTEM_FACILITY_WIN32 )
+ {
+ ev = BOOST_SYSTEM_HRESULT_CODE( ev );
+ }
+
+#undef BOOST_SYSTEM_FAILED
+#undef BOOST_SYSTEM_HRESULT_FACILITY
+#undef BOOST_SYSTEM_HRESULT_CODE
+#undef BOOST_SYSTEM_FACILITY_WIN32
+
+ using namespace boost::winapi;
+ using namespace errc;
+
+ // Windows system -> posix_errno decode table
+ // see WinError.h comments for descriptions of errors
+
+ switch ( ev )
+ {
+ case 0: return make_error_condition( success );
+
+ case ERROR_ACCESS_DENIED_: return make_error_condition( permission_denied );
+ case ERROR_ALREADY_EXISTS_: return make_error_condition( file_exists );
+ case ERROR_BAD_UNIT_: return make_error_condition( no_such_device );
+ case ERROR_BUFFER_OVERFLOW_: return make_error_condition( filename_too_long );
+ case ERROR_BUSY_: return make_error_condition( device_or_resource_busy );
+ case ERROR_BUSY_DRIVE_: return make_error_condition( device_or_resource_busy );
+ case ERROR_CANNOT_MAKE_: return make_error_condition( permission_denied );
+ case ERROR_CANTOPEN_: return make_error_condition( io_error );
+ case ERROR_CANTREAD_: return make_error_condition( io_error );
+ case ERROR_CANTWRITE_: return make_error_condition( io_error );
+ case ERROR_CONNECTION_ABORTED_: return make_error_condition( connection_aborted );
+ case ERROR_CURRENT_DIRECTORY_: return make_error_condition( permission_denied );
+ case ERROR_DEV_NOT_EXIST_: return make_error_condition( no_such_device );
+ case ERROR_DEVICE_IN_USE_: return make_error_condition( device_or_resource_busy );
+ case ERROR_DIR_NOT_EMPTY_: return make_error_condition( directory_not_empty );
+ case ERROR_DIRECTORY_: return make_error_condition( invalid_argument ); // WinError.h: "The directory name is invalid"
+ case ERROR_DISK_FULL_: return make_error_condition( no_space_on_device );
+ case ERROR_FILE_EXISTS_: return make_error_condition( file_exists );
+ case ERROR_FILE_NOT_FOUND_: return make_error_condition( no_such_file_or_directory );
+ case ERROR_HANDLE_DISK_FULL_: return make_error_condition( no_space_on_device );
+ case ERROR_INVALID_ACCESS_: return make_error_condition( permission_denied );
+ case ERROR_INVALID_DRIVE_: return make_error_condition( no_such_device );
+ case ERROR_INVALID_FUNCTION_: return make_error_condition( function_not_supported );
+ case ERROR_INVALID_HANDLE_: return make_error_condition( invalid_argument );
+ case ERROR_INVALID_NAME_: return make_error_condition( invalid_argument );
+ case ERROR_LOCK_VIOLATION_: return make_error_condition( no_lock_available );
+ case ERROR_LOCKED_: return make_error_condition( no_lock_available );
+ case ERROR_NEGATIVE_SEEK_: return make_error_condition( invalid_argument );
+ case ERROR_NOACCESS_: return make_error_condition( permission_denied );
+ case ERROR_NOT_ENOUGH_MEMORY_: return make_error_condition( not_enough_memory );
+ case ERROR_NOT_READY_: return make_error_condition( resource_unavailable_try_again );
+ case ERROR_NOT_SAME_DEVICE_: return make_error_condition( cross_device_link );
+ case ERROR_OPEN_FAILED_: return make_error_condition( io_error );
+ case ERROR_OPEN_FILES_: return make_error_condition( device_or_resource_busy );
+ case ERROR_OPERATION_ABORTED_: return make_error_condition( operation_canceled );
+ case ERROR_OUTOFMEMORY_: return make_error_condition( not_enough_memory );
+ case ERROR_PATH_NOT_FOUND_: return make_error_condition( no_such_file_or_directory );
+ case ERROR_READ_FAULT_: return make_error_condition( io_error );
+ case ERROR_RETRY_: return make_error_condition( resource_unavailable_try_again );
+ case ERROR_SEEK_: return make_error_condition( io_error );
+ case ERROR_SHARING_VIOLATION_: return make_error_condition( permission_denied );
+ case ERROR_TOO_MANY_OPEN_FILES_: return make_error_condition( too_many_files_open );
+ case ERROR_WRITE_FAULT_: return make_error_condition( io_error );
+ case ERROR_WRITE_PROTECT_: return make_error_condition( permission_denied );
+ case WSAEACCES_: return make_error_condition( permission_denied );
+ case WSAEADDRINUSE_: return make_error_condition( address_in_use );
+ case WSAEADDRNOTAVAIL_: return make_error_condition( address_not_available );
+ case WSAEAFNOSUPPORT_: return make_error_condition( address_family_not_supported );
+ case WSAEALREADY_: return make_error_condition( connection_already_in_progress );
+ case WSAEBADF_: return make_error_condition( bad_file_descriptor );
+ case WSAECONNABORTED_: return make_error_condition( connection_aborted );
+ case WSAECONNREFUSED_: return make_error_condition( connection_refused );
+ case WSAECONNRESET_: return make_error_condition( connection_reset );
+ case WSAEDESTADDRREQ_: return make_error_condition( destination_address_required );
+ case WSAEFAULT_: return make_error_condition( bad_address );
+ case WSAEHOSTUNREACH_: return make_error_condition( host_unreachable );
+ case WSAEINPROGRESS_: return make_error_condition( operation_in_progress );
+ case WSAEINTR_: return make_error_condition( interrupted );
+ case WSAEINVAL_: return make_error_condition( invalid_argument );
+ case WSAEISCONN_: return make_error_condition( already_connected );
+ case WSAEMFILE_: return make_error_condition( too_many_files_open );
+ case WSAEMSGSIZE_: return make_error_condition( message_size );
+ case WSAENAMETOOLONG_: return make_error_condition( filename_too_long );
+ case WSAENETDOWN_: return make_error_condition( network_down );
+ case WSAENETRESET_: return make_error_condition( network_reset );
+ case WSAENETUNREACH_: return make_error_condition( network_unreachable );
+ case WSAENOBUFS_: return make_error_condition( no_buffer_space );
+ case WSAENOPROTOOPT_: return make_error_condition( no_protocol_option );
+ case WSAENOTCONN_: return make_error_condition( not_connected );
+ case WSAENOTSOCK_: return make_error_condition( not_a_socket );
+ case WSAEOPNOTSUPP_: return make_error_condition( operation_not_supported );
+ case WSAEPROTONOSUPPORT_: return make_error_condition( protocol_not_supported );
+ case WSAEPROTOTYPE_: return make_error_condition( wrong_protocol_type );
+ case WSAETIMEDOUT_: return make_error_condition( timed_out );
+ case WSAEWOULDBLOCK_: return make_error_condition( operation_would_block );
+
+ default: return error_condition( ev, system_category() );
+ }
+}
+
+} // namespace detail
+
+} // namespace system
+
+} // namespace boost
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