Re: argument checks
Re: argument checks
- Subject: Re: argument checks
- From: "Hamish Allan" <email@hidden>
- Date: Thu, 12 Jun 2008 15:02:54 +0100
On Thu, Jun 12, 2008 at 6:50 AM, Ashley Perrien <email@hidden> wrote:
> Noob question: I'm putting together a small code library and I'm trying to
> include some error checking in the methods; what I want to protect against
> is the following:
>
> NSNumber *myNum;
>
> // Lots of code where I've forgotten to actually do anything with myNum
>
> results = [myClass someCalculationUsing: myNum];
I'd recommend not declaring myNum until you are ready to define it.
Making all your declarations upfront is a hangover from when compilers
weren't so clever; thankfully, GCC facilitates a more useful locality
of reference.
Hamish
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