Added toUpper() function

src/utility/stringUtils.cpp

@@ -87,6 +87,18 @@ const string stringUtils::toLower(const string& str)
 }
 
 
+const string stringUtils::toUpper(const string& str)
+{
+	string out(str);
+	const string::iterator end = out.end();
+
+	for (string::iterator i = out.begin() ; i != end ; ++i)
+		*i = std::toupper(*i, std::locale());
+
+	return (out);
+}
+
+
 const string stringUtils::trim(const string& str)
 {
 	string::const_iterator b = str.begin();

vmime/utility/stringUtils.hpp

@@ -76,6 +76,14 @@ public:
 	  */
 	static const string toLower(const string& str);
 
+	/** Transform all the characters in a string to upper-case.
+	  * \warning Use this with ASCII-only strings.
+	  *
+	  * @param str the string to transform
+	  * @return a new string in upper-case
+	  */
+	static const string toUpper(const string& str);
+
 	/** Strip the space characters (SPC, TAB, CR, LF) at the beginning
 	  * and at the end of the specified string.
 	  *