Function name built from macro using pre-defined string and argument

Question

I'm currently having a problem with the definition of a macro in C++.

I want it like this:

#define MY_MACRO (Name, Address) __int32 Get_Name() { return Address; }

Now, when I call it like this:

MY_MACRO(Test, 0x10);

it spits out

__int32 Get_Name() { return 0x10; }
            ^^^^

instead of

__int32 Get_Test() { return 0x10; }
            ^^^^

How can I solve this issue? I really need the Get_ in the name, and then the name passed by the argument.

Answer 1

Use the macro concatenation operator.

#define MY_MACRO (Name, Address) __int32 Get_##Name() { return Address; }

Answer 2

You have to concatenate strings this way

#define MY_MACRO(Name, Address) __int32 Get_##Name() { return Address; }