add front demo in this project

LFtid1056/cloudfront/code/log4cplus/tstring.h

@@ -0,0 +1,128 @@
+// -*- C++ -*-
+// Module:  Log4CPLUS
+// File:    tstring.h
+// Created: 4/2003
+// Author:  Tad E. Smith
+//
+//
+// Copyright 2003-2017 Tad E. Smith
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/** @file */
+
+#ifndef LOG4CPLUS_TSTRING_HEADER_
+#define LOG4CPLUS_TSTRING_HEADER_
+
+#include <log4cplus/config.hxx>
+
+#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
+#pragma once
+#endif
+
+#include <string>
+#include <log4cplus/tchar.h>
+
+namespace log4cplus
+{
+
+typedef std::basic_string<tchar> tstring;
+
+
+namespace helpers
+{
+
+inline
+std::string
+tostring (char const * str)
+{
+    return std::string (str);
+}
+
+inline
+std::string
+tostring (std::string const & str)
+{
+    return str;
+}
+
+inline
+std::string const &
+tostring (std::string & str)
+{
+    return str;
+}
+
+inline
+std::string
+tostring (std::string && str)
+{
+    return std::move (str);
+}
+
+
+inline
+std::wstring
+towstring (wchar_t const * str)
+{
+    return std::wstring (str);
+}
+
+inline
+std::wstring
+towstring (std::wstring const & str)
+{
+    return str;
+}
+
+inline
+std::wstring const &
+towstring (std::wstring & str)
+{
+    return str;
+}
+
+inline
+std::wstring
+towstring (std::wstring && str)
+{
+    return std::move (str);
+}
+
+
+LOG4CPLUS_EXPORT std::string tostring(const std::wstring&);
+LOG4CPLUS_EXPORT std::string tostring(wchar_t const *);
+
+LOG4CPLUS_EXPORT std::wstring towstring(const std::string&);
+LOG4CPLUS_EXPORT std::wstring towstring(char const *);
+
+} // namespace helpers
+
+#ifdef UNICODE
+
+#define LOG4CPLUS_C_STR_TO_TSTRING(STRING) log4cplus::helpers::towstring(STRING)
+#define LOG4CPLUS_STRING_TO_TSTRING(STRING) log4cplus::helpers::towstring(STRING)
+#define LOG4CPLUS_TSTRING_TO_STRING(STRING) log4cplus::helpers::tostring(STRING)
+
+#else // UNICODE
+
+#define LOG4CPLUS_C_STR_TO_TSTRING(STRING) (std::string(STRING))
+#define LOG4CPLUS_STRING_TO_TSTRING(STRING) STRING
+#define LOG4CPLUS_TSTRING_TO_STRING(STRING) STRING
+
+#endif // UNICODE
+
+} // namespace log4cplus
+
+
+#endif // LOG4CPLUS_TSTRING_HEADER_