using NSInteger in a loop

Question

Do a NSInteger occupies memory? Should we use it in a FOR loop?

Also note that if you have a loop with an integer inside, the integer's scope is the loop. Upon next loop, a new integer will be used and the old one gets out of scope. So no matter how often you loop, you occupy 4 bytes. — Krumelur
– Krumelur, Commented Feb 23, 2011 at 20:35

Nyx0uf · Accepted Answer · 2011-02-23 20:24:32Z

1

Look at the Apple documentation, a NSInteger is this :

#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
#else
typedef int NSInteger;
#endif

It's just 4 bytes on an iPhone, just like an int, you don't have to worry about memory.

answered Feb 23, 2011 at 20:24

Nyx0uf

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Community · Accepted Answer · 2017-05-23 12:20:40Z

0

NSInteger is just an alias for the native integer type. Cmd+Dbl Click on it and see.

1) It uses stack memory (I assume) while it is in scope and releases it when it goes out of scope.

2) Yes, use it in a for loop.

Also, see In Cocoa do you prefer NSInteger or int, and why?

edited May 23, 2017 at 12:20

CommunityBot

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answered Feb 23, 2011 at 20:24

mrcrowl

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