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I'm about to start writing an iOS game and I'm going to use mainly C++/C for the core gameplay logic.

I really like pre-allocating everything in the game and try to avoid any dynamic allocations as much as possible. With my own C++/C code it's not a big deal. However there are some ObjC libraries which I'd like to re-use and I'm not sure how to inject my custom memory allocator to Cocoa based classes.

Is there any central 'inject point' in Cocoa where I can do that?

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  • \$\begingroup\$ Why are you trying to inject your custom memory allocator into other libraries? This sounds like obsessive pre-optimization. \$\endgroup\$
    – thedaian
    Commented Aug 26, 2011 at 13:39
  • \$\begingroup\$ I'd like to know exactly how much memory is utilized and in what components. \$\endgroup\$
    – pachanga
    Commented Aug 26, 2011 at 13:46
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    \$\begingroup\$ @thedaian: On the contrary, injecting memory allocators is a key part of measurement, which is exactly how you optimize properly. \$\endgroup\$
    – user744
    Commented Aug 26, 2011 at 14:33

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This is all highly theoretical but you may be able to use categories (Mac Developer Tips) to override NSObjects (Apple Developer) alloc and dealloc methods.

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