initial import of 'tito' library

git-svn-id: svn://ttmath.org/publicrep/tito/src@361 e52654a7-88a9-db11-a3e9-0013d4bc506e

misc.cpp

@@ -0,0 +1,181 @@
+/*
+ * This file is a part of Tito - a cryptography library
+ * and is distributed under the (new) BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/* 
+ * Copyright (c) 2012, Tomasz Sowa
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *    
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *    
+ *  * Neither the name Tomasz Sowa nor the names of contributors to this
+ *    project may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <fstream>
+#include "misc.h"
+
+
+namespace Tito
+{
+
+
+
+void AssignString(const char * src, size_t len, std::wstring & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	if( dst.capacity() < dst.size() + len )
+		dst.reserve(dst.size() + len + 128);
+
+	for(size_t i=0 ; i<len ; ++i )
+		dst += static_cast<unsigned char>(src[i]);
+}
+
+
+
+void AssignString(const char * src, std::wstring & dst, bool clear)
+{
+size_t len;
+
+	for(len=0 ; src[len] ; ++len){}
+
+	AssignString(src, len, dst, clear);
+}
+
+
+void AssignString(const std::string & src, std::wstring & dst, bool clear)
+{
+	AssignString(src.c_str(), src.size(), dst, clear);
+}
+
+
+
+
+
+void AssignString(const wchar_t * src, size_t len, std::string & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	if( dst.capacity() < dst.size() + len )
+		dst.reserve(dst.size() + len + 128);
+
+	for(size_t i=0 ; i<len ; ++i)
+		dst += static_cast<char>(src[i]);
+}
+
+
+void AssignString(const wchar_t * src, std::string & dst, bool clear)
+{
+size_t len;
+
+	for(len=0 ; src[len] ; ++len){}
+
+	AssignString(src, len, dst, clear);
+}
+
+
+void AssignString(const std::wstring & src, std::string & dst, bool clear)
+{
+	AssignString(src.c_str(), src.size(), dst, clear);
+}
+
+
+
+void AssignString(const char * src, size_t len, std::string & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	// we suppose that append is smart enough and we don't have to use reserve()
+	dst.append(src, len);
+}
+
+
+
+void AssignString(const char * src, std::string & dst, bool clear)
+{
+size_t len;
+
+	for(len=0 ; src[len] ; ++len){}
+
+	AssignString(src, len, dst, clear);
+}
+
+
+
+
+void AssignString(const std::string & src, std::string & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	dst.append(src);
+}
+
+
+void AssignString(const wchar_t * src, size_t len, std::wstring & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	// we suppose that append is smart enough and we don't have to use reserve()
+	dst.append(src, len);
+}
+
+
+void AssignString(const wchar_t * src, std::wstring & dst, bool clear)
+{
+size_t len;
+
+	for(len=0 ; src[len] ; ++len){}
+
+	AssignString(src, len, dst, clear);
+}
+
+
+
+void AssignString(const std::wstring & src, std::wstring & dst, bool clear)
+{
+	if( clear )
+		dst.clear();
+
+	dst.append(src);
+}
+
+
+
+
+} // namespace Tito
+
+
+
+
+
+
+