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Re: beginner question, NSNumber, NSDecimalAsNumber
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Re: beginner question, NSNumber, NSDecimalAsNumber


  • Subject: Re: beginner question, NSNumber, NSDecimalAsNumber
  • From: Thomas Wetmore <email@hidden>
  • Date: Mon, 09 Nov 2009 12:20:44 -0500

I offer the following as a "Cocoa solution" to the OP's query, whatever that might be taken to mean...

(For extra credit: why must the parameter be unsigned?)

Tom Wetmore

NSString* binaryRepresentation (NSUInteger number)
{
	unichar buffer[64];
	NSUInteger n = 0;
	while (number) {
		buffer[n++] = (number & 1) + '0';
		number >>= 1;
	}
	NSInteger i = 0, j = n - 1;
	while (i < j) {
		unichar temp = buffer[j];
		buffer[j] = buffer[i];
		buffer[i] = temp;
		i++, j--;
	}
	return [NSString stringWithCharacters: buffer length: n];
}
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