Instance Method

sortUsingFunction:context:

Sorts the receiver in ascending order as defined by the comparison function compare.

Declaration

- (void)sortUsingFunction:(NSInteger (*)(ObjectType, ObjectType, void *))compare context:(void *)context;

Parameters

compare

The comparison function to use to compare two elements at a time.

The function’s parameters are two objects to compare and the context parameter, context. The function should return NSOrderedAscending if the first element is smaller than the second, NSOrderedDescending if the first element is larger than the second, and NSOrderedSame if the elements are equal.

context

The context argument to be passed to the compare function.

Discussion

This approach allows the comparison to be based on some outside parameter, such as whether character sorting is case sensitive or case insensitive.

See Also

Rearranging Content

- exchangeObjectAtIndex:withObjectAtIndex:

Exchanges the objects in the array at given indexes.

- sortUsingDescriptors:

Sorts the receiver using a given array of sort descriptors.

- sortUsingComparator:

Sorts the receiver in ascending order using the comparison method specified by a given NSComparator block.

- sortWithOptions:usingComparator:

Sorts the receiver in ascending order using the specified options and the comparison method specified by a given NSComparator block.

- sortUsingSelector:

Sorts the receiver in ascending order, as determined by the comparison method specified by a given selector.

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