On 31/12/2008, at 4:08 PM, Gabe Shahbazian wrote:
What is the best way to take an NSString and reverse the characters
so that
"hello" becomes "olleh"?
Thanks for any and all help,
Gabe S
Hi Gabe.
I don't think there's anything in Cocoa that does this for you. I
needed to reverse strings and came up with this:
- (NSString *)reverseString:(NSString *)aString
{
// Do the reversing with the help of an array of chars
int i, j;
const int stringLength = [aString length];
char reverseChars[stringLength];
for (i = stringLength - 1, j = 0; i >= 0; i--, j++)
{
char c = [aString characterAtIndex:i];
reverseChars[j] = c;
}
reverseChars[j] = '\0';// create a C (UTF8) string by adding a null
char
NSString *backwardsString = [NSString
stringWithUTF8String:reverseChars];
return backwardsString;
}
HTH,
Ron
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