1 files changed, 13 insertions, 11 deletions

diff --git a/src/user/lib/fwik/include/String.h b/src/user/lib/fwik/include/String.h
index 672220d..59fa0b6 100644
--- a/src/user/lib/fwik/include/String.h
+++ b/src/user/lib/fwik/include/String.h
@@ -11,30 +11,32 @@ class String {
 	public:
 	String();
 	String(const String& other);
-	String(char* ptr);
-	String(char* ptr, int len);
+	String(const char* ptr);
+	String(const char* ptr, int len);
 	String(char c, int count);
 	~String();
 	void operator=(const String &string);
-	void operator=(char* ptr);
+	void operator=(const char* ptr);
 
-	char* c_str();
+	const char* c_str() const;
 
-	bool operator==(const String& other);
-	bool operator==(char* other);
-	bool operator<(const String& other);
+	bool operator==(const String& other) const;
+	bool operator==(const char* other) const;
+	bool operator<(const String& other) const;
 	char &operator[](int pos);
+	char operator[](int pos) const;
 
-	int size() { return len; }
-	operator bool() { return len != 0; }
-	String substr(int start, int count);
+	int size() const { return len; }
+	operator bool() const { return len != 0; }
+	String substr(int start, int count) const;
 
-	String operator+(const String& other);
+	String operator+(const String& other) const;
 	void operator+=(const String& other);
 	void operator+=(char c);
 
 	static String dec(int i);
 	static String hex(uint32_t v);
+	static String sprintf(const char* format, ...);
 };
 
 #endif