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Timptation

struct declaration c/c++/obj-c

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What is the difference between:

struct MyStruct
{
...
};

and

typedef struct
{
...
} MyStruct;

The second allows my obj-c code to compile, and the first does not.

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The first is C++ syntax. The latter is C syntax. obj-c is a superset of C, not C++. However, if you want XCode to compile the former, rename your file to .mm instead of .m

That will allow you to reference and use C++ code. Just remember when you start getting weird compile errors that any file that includes a header with C++ syntax must also have the .mm filename. When I'm starting a new iPhone project, the first thing I do is just rename everything to be .mm. That way I don't have to worry about it :)

-me

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