Using a macro inside a loop condition

I am programing in C++ and I defined a variable as a macro, and I want开发者_如何学Go to return a value from a function using the macro.

For some reason the compiler says that I have a syntax error. I am using Linux.

#include <iostream>
#define FACTOR 10;
int dosomthing(){
    return (FACTOR/2);
}

Any suggestions on what might be going wrong?

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Macros are replaced. So in the end you'll get

return (10;/2);

Just remove the ; from your macro and you'll be fine.

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static const int FACTOR = 10; is a better way to do this in C++.