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Re: How to check the capital letter?
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Re: How to check the capital letter?


  • Subject: Re: How to check the capital letter?
  • From: Ron Fleckner <email@hidden>
  • Date: Mon, 11 Aug 2008 23:43:25 +1000
  • Resent-date: Mon, 11 Aug 2008 23:53:15 +1000
  • Resent-from: Ron Fleckner <email@hidden>
  • Resent-message-id: <email@hidden>
  • Resent-to: Cocoa-dev List <email@hidden>


On 11/08/2008, at 11:35 PM, Jean-Daniel Dupas wrote:


Le 11 août 08 à 15:29, Ron Fleckner a écrit :


Hi, I don't remember if there is a Cocoa solution, but of course you can use plain C:


NSString *str = @"Aa";
char first = [str characterAtIndex:0];
char second = [str characterAtIndex:1];
NSLog(@"%c is %@.", first, isupper(first) ? @"uppercase" : @"lowercase");
NSLog(@"%c is %@.", second, isupper(second) ? @"uppercase" : @"lowercase");


Result:

	A is uppercase.
	a is lowercase.

Wrong. characterAtIndex: return an unichar not a char, which is AFAK an UTF16 character.

Yes, I saw that. But it still works. No compiler warning either. Would it be a problem?


Ron_______________________________________________

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