To catch index out of range in NSArray. Use method swizzle to catch out of range exception and NSLog array contents, array count, and the failed index. NSInteger type is used to catch negative index.

NSArray+CatchIndexOutOfRange.m

// Inspired by Blended Cocoa
// Reference: http://www.blendedcocoa.com/blog/2012/10/25/objective-c-literals-negative-array-subscripts/

#import <objc/runtime.h>

@implementation NSArray (CatchIndexOutOfRange)

+ (void)load
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        method_exchangeImplementations(class_getInstanceMethod(self, @selector(objectAtIndexedSubscript:)),
                                       class_getInstanceMethod(self, @selector(DLC_objectAtIndexedSubscript:)));
    });
}

// NSInteger is used to catch negative index
- (id)DLC_objectAtIndexedSubscript:(NSInteger)idx
{
    id object = nil;
    @try {
        object = [self DLC_objectAtIndexedSubscript:idx];
    }
    @catch (NSException *exception) {
        if (idx < 0 || idx >= [self count]) {
            NSLog(@"array %p index \" %ld \" out of range,\n current count \" %ld \",\n exception name: %@,\n exception reason: %@,\n exception contents: %@", self, idx, [self count], exception.name, exception.reason, self);
        }
        
        [exception raise];
    }
    
    return object;
}

@end