Sorting Array in increasing order

Question

I have an array that contains values like 0,3,2,8 etc.I want to sort my array in increasing order.Please tell me how to do this.

Thanks in advance!!

Answer 1

If your array is an NSArray containing NSNumbers:

NSArray *numbers = [NSArray arrayWithObjects:
                    [NSNumber numberWithInt:0],
                    [NSNumber numberWithInt:3],
                    [NSNumber numberWithInt:2],
                    [NSNumber numberWithInt:8],
                    nil];

NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:nil ascending:YES selector:@selector(localizedCompare:)];
NSArray *sortedNumbers = [numbers sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];

Keep in mind though, that this is just one way to sort an NSArray.

Just to name a few other methods of NSArray:

• sortedArrayHint
• sortedArrayUsingFunction:context:
• sortedArrayUsingFunction:context:hint:
• sortedArrayUsingDescriptors:
• sortedArrayUsingSelector:
• sortedArrayUsingComparator:
• sortedArrayWithOptions:usingComparator:

---

If your array is a c int array containing ints:

#include <stdio.h>
#include <stdlib.h>
int array[] = { 0, 3, 2, 8 };
int sort(const void *x, const void *y) {
    return (*(int*)x - *(int*)y);
}
void main() {
    qsort(array, 10, sizeof(int), sort);
}