Create NSString by repeating another string a given number of times

Question

This should be easy, but I\'m having a hard time finding the easiest solution.

I need an NSString that is equal to another string concatenated with itse

Answer 1

For performance, you could drop into C with something like this:

+ (NSString*)stringWithRepeatCharacter:(char)character times:(unsigned int)repetitions;
{
    char repeatString[repetitions + 1];
    memset(repeatString, character, repetitions);

    // Set terminating null
    repeatString[repetitions] = 0;

    return [NSString stringWithCString:repeatString];
}

This could be written as a category extension on the NSString class. There are probably some checks that should be thrown in there, but this is the straight forward gist of it.