complicated typedef

Can someone please help me understand what the following line of code is doing?
typedef int (*test)(int);

First, figure it out without the typedef:

Code:

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int (*test)(int);

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This makes test a pointer to a function (taking one int), and returning an int.

When you add typedef to it, it means that “test” is now an alias for such a type. So you could do:

Code:

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test fun;

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and now fun is a function pointer of the expected type.

If you don't know how to decode declarations like this, the cdecl program can help you, if it's available for your platform.