On Mar 15, 2009, at 7:33 PM, Oleg Krupnov wrote:
I need to use a dictionary inside a long, time-consuming operation.
The keys of the dictionary are integers, the values are NSObjects.
I could use NSDictionary, but I don't like the overhead of creating
NSNumbers for the keys and then comparing them, where I could use
integers directly more efficiently, both by time and memory.
The question is: is there this kind of fast int-keyed dictionary in
Cocoa or elsewhere? Thanks!
_______________________________________________
You can write your implementation file in Objective C++ , and use
std::map<int,id>
Then write your header like this:
#ifdef __cplusplus
#include <map>
#endif
@interface MyClass: NSObject
{
#ifdef __cplusplus
std::map<int,id> * mymap; //All data pointers have same size,
#else
void * mymap;
#endif
}
@end
Then in your implementation file initialize your pointer:
mymap = new std::map<int,id>
and use it like this:
(*mymap) [integervalue] = someid;
-----------------------------------
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outer space.
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Tommy Nordgren
tommy.nordg...@comhem.se
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