Block-based enumeration for NSRange

NSEnumerateRange.m

//
//  NSEnumerateRange.m
//
//  Created by Zachary Waldowski on 9/14/11.
//  Copyright 2011 Dizzy Technology.  Licensed under MIT.
//

NS_INLINE void NSEnumerateRange(NSRange range, void (^block)(NSUInteger idx, BOOL *stop)) {
    block = Block_copy(block);
    NSUInteger start = range.location;
    for (NSUInteger i = 0; i < range.length; i++) {
        NSUInteger idx = start + i;
        BOOL stop = NO;
        block(idx, &stop);
        if (stop)
            break;
    }
    Block_release(block);
}