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Example of Unknown Multi Params Function

/ Published in: Objective C
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  1. //this is the way of passing multiple params
  2. 	+(NSInteger) writeWithFormat: (NSString*) formatString, ... {
  3. 		va_list va; //this will contain the list of parameters
  4. 		NSInteger length;
  5. 		//get all args, but last writen arg thats formatString.
  6. 		va_start(va, formatString); 
  7. 		//string with format plus all arguments
  8. 		NSString* str =[ [ NSString alloc ] initWithFormat:formatString arguments:va ]; 
  9. 		va_end(va); //finish the parsing of arguments
  10. 		printf("%s\n",[ str UTF8String ]); //output to the console
  11. 		length = [ str length ]; //know the lenght of the string in characters
  12. 		[ str release ]; //relase the string
  13. 		return length; //return the amount of characters writen to the console
  14. 	}

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