cocoa - Efficient conversion of int to string -

i've seen several questions/answers here suggest best way string representation of integer in objective-c use [nsstring stringwithformat:@"%d", x]. i'm afraid c/c++ programmer in me having hard time believing want bring formatting code play such simple task. is, assume stringwithformat needs parse through format string looking different type specifiers, field widths, , options possibly use, has able interpret variable length list of parameters , use format specifier coerce x appropriate type, go through lengthy process of conversion, accounting signed/unsigned values , negation along way.

needless in c/c++ use itoa(x) 1 thing , extremely efficiently.

i'm not interested in arguing relative merits of 1 language on another, rather asking question: incredibly powerful [nsstring stringwithformat:@"%d", x] really efficient way very, simple task in objective-c? seems i'm cracking peanut sledge hammer.

you use itoa() followed of +[nsstring stringwithutf8string:] -[nsstring initwithbytes:length:encoding: or +[nsstring stringwithcstring:encoding:] if makes feel better, wouldn't worry unless you're sure performance problem.