Question

Is there a way to define a constant using function from another method and #define?

For example, I have in file foo.cpp a method that returns an int:

int foo() { return 2; }

In my bar.cpp, I want to have something like

#define aConstant foo()

Is it possible? Is there a way to do it?

(I’m using Visual Studio 2010)

EDIT: constexpr doesn’t work since I’m using VS 2010, so any other idea?

Answer 1

Make it

constexpr int foo() { return 2; }

Then in the other unit

static constexpr int aConstant = foo();