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macOS & iOS Developer Playground
macOS - Development and Darwin
Why do you need to "alloc" for initWithCString and but doesn't for stringWithFormat ?
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<blockquote data-quote="Bracer" data-source="post: 922723" data-attributes="member: 125415"><p>Why is it that these two are correct:</p><p>[code]</p><p>NSMutableString* CombinedText = [NSMutableString stringWithFormat:@"%d %d %d",1,2,3];</p><p>[/code]</p><p></p><p>and</p><p>[code]</p><p>NSMutableString* CombinedText = [[NSMutableString alloc] initWithCString:"String Data" ];</p><p>[/code]</p><p></p><p>The question is, why is it that you have to "alloc" when you are using the "initWithCString" function yet doesn't have to when you do stringWithFormat, I am puzzled because they BOTH returns a NSMutableString, so shouldn't they have similar initialization protocols ?</p><p>Yet when I try to:</p><p>[code]</p><p>NSMutableString* CombinedText = [ [NSMutableString alloc] stringWithFormat:@"%d %d %d",1,2,3];</p><p>[/code]</p><p>It crashes ?</p><p>Likewise if I were to remove "alloc" from initWithCString.</p></blockquote><p></p>
[QUOTE="Bracer, post: 922723, member: 125415"] Why is it that these two are correct: [code] NSMutableString* CombinedText = [NSMutableString stringWithFormat:@"%d %d %d",1,2,3]; [/code] and [code] NSMutableString* CombinedText = [[NSMutableString alloc] initWithCString:"String Data" ]; [/code] The question is, why is it that you have to "alloc" when you are using the "initWithCString" function yet doesn't have to when you do stringWithFormat, I am puzzled because they BOTH returns a NSMutableString, so shouldn't they have similar initialization protocols ? Yet when I try to: [code] NSMutableString* CombinedText = [ [NSMutableString alloc] stringWithFormat:@"%d %d %d",1,2,3]; [/code] It crashes ? Likewise if I were to remove "alloc" from initWithCString. [/QUOTE]
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macOS & iOS Developer Playground
macOS - Development and Darwin
Why do you need to "alloc" for initWithCString and but doesn't for stringWithFormat ?
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