objective c - Enumerate method arguments -


is there way iterate on method arguments of objective-c methods? need lot of error checking in lot of methods , automate instead of checking each value comes in individually.

i know can done methods variable number of arguments. particularly looking way methods take fixed number of arguments.

- (void)mymethodwitharg1:(nsstring *)arg1 arg2:(nsnumber *)arg3 nserror:(nserror **)err {      // arguments array     nsarray *args; // ???      (id arg in args) {         // stuff args ....     } }

you try following.

- (void)mymethodwitharg1:(nsstring *)arg1 arg2:(nsnumber *)arg3 nserror:(nserror **)err  {     nsarray *args = [[nsarray alloc] initwithobjects:arg1, arg2, err, nil];      for(id arg in args) {          if(arg) {             // code want each arg here.         }     }      }

there nothing special going on here happening initializing nsarray objects objects being arguments, once in for loop checking arg , not nil or null. when in for loop again ever want argument , determine is.

if isn't looking please comment , amend best possible.


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