ios - Add allocated buffer to NSMutableDictionay -

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is possible add dynamically allocated buffer using malloc nsmutabledictionary , free after add directly. correct?

no, very, bad. call free, os can re-use memory, use of buffer bad.

if want put data in mutable dictionary, use nsdata instead.

if reason need store malloc'd buffer ( e.g. got library), you'll need wrap in object class.

you can call free wrapper object's dealloc, free won't called until wrapper object released ( handled arc once dictionary released.

@interface mallocedmemorywrapper  @property ( nonatomic, assign) void* wrappedmemory; @end  @implementation mallocedmemorywrapper - (mallocedmemorywrapper*) initwithmemory:(void*) memory {      self.wrappedmemory = memory; }  - (void) dealloc {     free( self.memory); } @end  }

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