1 files changed, 117 insertions, 0 deletions
diff --git a/include/convto.h b/include/convto.h
new file mode 100644
index 000000000..2f808d1fb
--- /dev/null
+++ b/include/convto.h
@@ -0,0 +1,117 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2014 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+/** Template function to convert any input type to std::string
+ */
+template<typename T> inline std::string ConvNumeric(const T& in)
+{
+	if (in == 0)
+		return "0";
+	T quotient = in;
+	std::string out;
+	while (quotient)
+	{
+		out += "0123456789"[std::abs((long)quotient % 10)];
+		quotient /= 10;
+	}
+	if (in < 0)
+		out += '-';
+	std::reverse(out.begin(), out.end());
+	return out;
+}
+
+/** Template function to convert any input type to std::string
+ */
+inline std::string ConvToStr(const int in)
+{
+	return ConvNumeric(in);
+}
+
+/** Template function to convert any input type to std::string
+ */
+inline std::string ConvToStr(const long in)
+{
+	return ConvNumeric(in);
+}
+
+/** Template function to convert any input type to std::string
+ */
+inline std::string ConvToStr(const char* in)
+{
+	return in;
+}
+
+/** Template function to convert any input type to std::string
+ */
+inline std::string ConvToStr(const bool in)
+{
+	return (in ? "1" : "0");
+}
+
+/** Template function to convert any input type to std::string
+ */
+inline std::string ConvToStr(char in)
+{
+	return std::string(1, in);
+}
+
+inline const std::string& ConvToStr(const std::string& in)
+{
+	return in;
+}
+
+/** Template function to convert any input type to std::string
+ */
+template <class T> inline std::string ConvToStr(const T& in)
+{
+	std::stringstream tmp;
+	if (!(tmp << in))
+		return std::string();
+	return tmp.str();
+}
+
+/** Template function to convert a std::string to any numeric type.
+ */
+template<typename TOut> inline TOut ConvToNum(const std::string& in)
+{
+	TOut ret;
+	std::istringstream tmp(in);
+	if (!(tmp >> ret))
+		return 0;
+	return ret;
+}
+
+template<> inline char ConvToNum<char>(const std::string& in)
+{
+	// We specialise ConvToNum for char to avoid istringstream treating
+	// the input as a character literal.
+	uint16_t num = ConvToNum<uint16_t>(in);
+	return num <= UINT8_MAX ? num : 0;
+}
+
+template<> inline unsigned char ConvToNum<unsigned char>(const std::string& in)
+{
+	// We specialise ConvToNum for unsigned char to avoid istringstream
+	// treating the input as a character literal.
+	int16_t num = ConvToNum<int16_t>(in);
+	return num >= INT8_MIN && num <= INT8_MAX ? num : 0;
+}