Add Template itoa to convert integer to char*

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@6119 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 19 insertions, 0 deletions

diff --git a/include/inspircd.h b/include/inspircd.h
index 3d9002f53..d3d424384 100644
--- a/include/inspircd.h
+++ b/include/inspircd.h
@@ -77,6 +77,25 @@ template<typename T> inline long ConvToInt(const T &in)
 	return atoi(tmp.str().c_str());
 }
 
+/** Template function to convert integer to char, storing result in *res and
+ * also returning the pointer to res. Based on Stuart Lowe's C/C++ Pages.
+ */
+template<typename T, typename V, typename R> inline char* itoa(const T &in, V *res, R base)
+{
+	if (base < 2 || base > 16) { *res = 0; return res; }
+	char* out = res;
+	int quotient = in;
+	while (quotient) {
+		*out = "0123456789abcdef"[ std::abs( quotient % base ) ];
+		++out;
+		quotient /= base;
+	}
+	if ( in < 0 && base == 10) *out++ = '-';
+	std::reverse( res, out );
+	*out = 0;
+	return res;
+}
+
 /** This class contains various STATS counters
  * It is used by the InspIRCd class, which internally
  * has an instance of it.