Objective-C reference to C + + classes

I use C + + to write an algorithm stored in a cpp inside. Now I want. M file referenced in the C + + class in Objective-C, and call its class members, how they could not achieve?
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First. M file suffix rewrite. Mm file. Then you write with c + + # import came algorithm can be friends.
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cited a floor reply:.

first rewrite mm m file extension file. Then you write with c + + # import came algorithm can be friends.

Mm files currently used in the header file # import or # include introducing cpp compiler will complain that I remove it properly
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First: check the project settings "Apple LLVM compiler 3.1 - Language" section.
Second: whether to use some template class

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No change. Mm file, because that is. Mm file compiler was able to identify the c + + code.
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It must be included in the. Mm file, not included in the header file ah. Header files using @ class.
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references, 4th Floor reply:

no change mm file, because the file is mm was able to identify the compiler c + + code.

Identified, a link error, syntax and prove no problem.
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reference to the third floor of the reply:

First

: check the project settings "Apple LLVM compiler 3.1 - Language" section.
Second: whether to use some template class

Which specific settings?
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references, 5th Floor reply:

mm file must be included in it, do not include the header file ah. Header files using @ class.

It did not work linker command failed with exit code 1 (use-v to see invocation)
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The reply was deleted at the moderator 2012-07-24 09:48:04

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If you have a c + + code, the compiler option was selected objective-c + +