@@ -52,28 +52,34 @@
 
 /**
  * @brief Appends a UTF-8 encoded C string to the OFMutableString.
  *
  * @param UTF8String A UTF-8 encoded C string to append
+ * @throw OFInvalidEncodingException The C string is not in not in the correct
+ *				     encoding
  */
 - (void)appendUTF8String: (const char *)UTF8String;
 
 /**
  * @brief Appends a UTF-8 encoded C string with the specified length to the
  *	  OFMutableString.
  *
  * @param UTF8String A UTF-8 encoded C string to append
  * @param UTF8StringLength The length of the UTF-8 encoded C string
+ * @throw OFInvalidEncodingException The C string is not in not in the correct
+ *				     encoding
  */
 - (void)appendUTF8String: (const char *)UTF8String
 		  length: (size_t)UTF8StringLength;
 
 /**
  * @brief Appends a C string with the specified encoding to the OFMutableString.
  *
  * @param cString A C string to append
  * @param encoding The encoding of the C string
+ * @throw OFInvalidEncodingException The C string is not in not in the correct
+ *				     encoding
  */
 - (void)appendCString: (const char *)cString
 	     encoding: (OFStringEncoding)encoding;
 
 /**
@@ -81,10 +87,12 @@
  *	  OFMutableString.
  *
  * @param cString A C string to append
  * @param encoding The encoding of the C string
  * @param cStringLength The length of the UTF-8 encoded C string
+ * @throw OFInvalidEncodingException The C string is not in not in the correct
+ *				     encoding
  */
 - (void)appendCString: (const char *)cString
 	     encoding: (OFStringEncoding)encoding
 	       length: (size_t)cStringLength;
 
@@ -94,10 +102,13 @@
  * See `printf` for the format syntax. As an addition, `%@` is available as
  * format specifier for objects, `%C` for `OFUnichar` and `%S` for
  * `const OFUnichar *`.
  *
  * @param format A format string which generates the string to append
+ * @throw OFInvalidFormatException The specified format is invalid
+ * @throw OFInvalidEncodingException The resulting string is not in not in UTF-8
+ *				     encoding
  */
 - (void)appendFormat: (OFConstantString *)format, ...;
 
 /**
  * @brief Appends a formatted string to the OFMutableString.
@@ -106,10 +117,11 @@
  * format specifier for objects, `%C` for `OFUnichar` and `%S` for
  * `const OFUnichar *`.
  *
  * @param format A format string which generates the string to append
  * @param arguments The arguments used in the format string
+ * @throw OFInvalidFormatException The specified format is invalid
  */
 - (void)appendFormat: (OFConstantString *)format arguments: (va_list)arguments;
 
 /**
  * @brief Converts the string to uppercase.