diff --git a/etk/os/FSNode.cpp b/etk/os/FSNode.cpp
index 03f5e83..3474d2b 100644
--- a/etk/os/FSNode.cpp
+++ b/etk/os/FSNode.cpp
@@ -1776,6 +1776,13 @@ etk::FSNode& etk::FSNode::operator<< (const uint32_t _data) {
 	fileWrite(sss.c_str(), 1, sss.size());
 	return *this;
 }
+etk::FSNode& etk::FSNode::operator<< (const float _data) {
+	std::stringstream tmp;
+	tmp << _data;
+	std::string sss = tmp.str();
+	fileWrite(sss.c_str(), 1, sss.size());
+	return *this;
+}
 
 bool etk::FSNode::fileSeek(long int _offset, enum etk::seekNode _origin)
 {
diff --git a/etk/os/FSNode.h b/etk/os/FSNode.h
index ca30941..99f0b42 100644
--- a/etk/os/FSNode.h
+++ b/etk/os/FSNode.h
@@ -491,6 +491,7 @@ namespace etk {
 			etk::FSNode& operator<< (const char* _data);
 			etk::FSNode& operator<< (const int32_t _data);
 			etk::FSNode& operator<< (const uint32_t _data);
+			etk::FSNode& operator<< (const float _data);
 			/**
 			 * @brief Get the position in the file.
 			 * @return the requested position.
diff --git a/etk/stdTools.h b/etk/stdTools.h
index 5c770d5..7ebb37f 100644
--- a/etk/stdTools.h
+++ b/etk/stdTools.h
@@ -388,6 +388,17 @@ namespace std {
 namespace etk {
 	// these declaration is to prevent some under template declaration of unknown type
 	template <class TYPE> std::string to_string(const TYPE& _variable);
+	template <class TYPE> std::string to_string(const std::vector<TYPE>& _list) {
+		std::string out = "{";
+		for (size_t iii=0; iii<_list.size(); ++iii) {
+			if (iii!=0) {
+				out += ";";
+			}
+			out+= etk::to_string(_list[iii]);
+		}
+		out += "}";
+		return out;
+	}
 	#if __CPP_VERSION__ >= 2011
 		template <class TYPE> std::u32string to_u32string(const TYPE& _variable);
 	#endif