Quick sort

gistfile1.m

//Call with [self quickSort:0 withHigh:[scanpleFileList count]-1];

-(void)quickSort:(int)low withHigh:(int)high;{

    int i = low,j = high;
    int pivot = [[[scanpleFileList objectAtIndex:(low+high)/2]time]intValue];

    while(i <= j){
        
        while([[[scanpleFileList objectAtIndex:i]time]intValue] < pivot) i++;
        while([[[scanpleFileList objectAtIndex:j]time]intValue] > pivot) j--;
        
        if(i<=j){
            [scanpleFileList exchangeObjectAtIndex:i withObjectAtIndex:j];
            i++;
            j--;
        }
    }
    if(low < j) [self quickSort:low withHigh:j];
    if(i < high)[self quickSort:i withHigh:high];

}