Small tweaks for the String class

svn-id: r14293

common/str.cpp

@@ -108,6 +108,14 @@ String &String::operator  =(const String &str) {
 	return *this;
 }
 
+String& String::operator  =(char c) {
+	ensureCapacity(1, false);
+	_len = 1;
+	_str[0] = c;
+	_str[1] = 0;
+	return *this;
+}
+
 String &String::operator +=(const char *str) {
 	int len = strlen(str);
 	if (len > 0) {
@@ -139,10 +147,6 @@ String &String::operator += (char c) {
 	return *this;
 }
 
-char String::lastChar() const {
-	return (_len > 0) ? _str[_len-1] : 0;
-}
-
 void String::deleteLastChar() {
 	if (_len > 0) {
 		ensureCapacity(_len - 1, true);

common/str.h

@@ -70,6 +70,7 @@ public:
 	uint size() const				{ return _len; }
 
 	bool isEmpty() const	{ return (_len == 0); }
+	char lastChar() const	{ return (_len > 0) ? _str[_len-1] : 0; }
 };
 
 class String : public ConstString {
@@ -94,6 +95,7 @@ public:
 // An alternative would be to add private clone() and cloneMutable methods that 
 // would do the right thing.
 	String &operator  =(const String &str);
+	String &operator  =(char c);
 	String &operator +=(const char *str);
 	String &operator +=(const String &str);
 	String &operator +=(char c);
@@ -108,7 +110,6 @@ public:
 		return _str[idx];
 	}
 
-	char lastChar() const;
 	void deleteLastChar();
 	void deleteChar(int p);
 	void clear();