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swiftnsrangeswiftlint
Auryn
Auryn

Reputation: 1176

Difference between NSRange and NSMakeRange

Is there any difference between: 

NSRange(location: 0, length: 5)

and:

NSMakeRange(0, 5)

Because Swiftlint throws a warning when I use NSMakeRange, but I don't know why.

Thanks for the Help :-)

Upvotes: 31

Views: 5344

Answers (2)

Andrey Chernukha
Andrey Chernukha

Reputation: 21808

The only difference between them is that

NSRange(location: 0, length: 5)

is an initializer for NSRange while 

NSMakeRange(0, 5)

is a function which creates a new NSRange instance (by using the same initializer inside most likely) and actually is redundant in Swift. Swift has simply inherited it from Objective-C. I would stick to the former

Upvotes: 40

zvjerka24
zvjerka24

Reputation: 1792

Main difference is that 

NSRange(location: 0, length: 24)

is auto-generated struct init method in Swift and 

NSMakeRange(0, 24)

is just a predefined macro that setts location and length

NS_INLINE NSRange NSMakeRange(NSUInteger loc, NSUInteger len) {
    NSRange r;
    r.location = loc;
    r.length = len;
    return r;
}

In general, result is the same, but if you're Swift use first one and if you're writing ObjC code use second ;)

Upvotes: 7

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