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Re: Converting NSString to char constant (answered)
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Re: Converting NSString to char constant (answered)


  • Subject: Re: Converting NSString to char constant (answered)
  • From: KLW <email@hidden>
  • Date: Sat, 3 Jan 2004 01:28:29 -0500

Dear Mr. Cox:

Thank you for your response. Just to reassure you, my program is set up such that the only possible results will be either 'C', 'N', 'I', or 'E' -- well within the ASCII range.

But I hadn't thought of the possibility that there would be a problem, and I thank you for pointing it out. As it is, the solution actually doesn't work without the char cast. Perhaps I could have said:
unichar cResult = (unichar)[resultAsNSString characterAtIndex:0];

Anyone know if I can use a unichar in a switch() case construct? I know, I know, I suppose I could just try it, but I happen to not have Xcode at this machine.

K

On Jan 02, 2004, at 17:24, KLW wrote:

Answered my own question:
char cResult = (char)[resultasNSString characterAtIndex:0];

Anyone have a better, smaller, faster way?

Don't cast the result of -characterAtIndex: to char unless you're absolutely sure that it is in the ASCII range, otherwise, you'll be getting back unpredictable values.

--
Clark S. Cox III
email@hidden
http://homepage.mac.com/clarkcox3/
http://homepage.mac.com/clarkcox3/blog/B1196589870/index.html



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  • Follow-Ups:
    • Re: Converting NSString to char constant (answered)
      • From: Nick Zitzmann <email@hidden>
    • Re: Converting NSString to char constant (answered)
      • From: Clark Cox <email@hidden>
References: 
 >RE: Converting NSString to char constant (answered) (From: KLW <email@hidden>)
 >Re: Converting NSString to char constant (answered) (From: Clark Cox <email@hidden>)

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