Question

Can I get the address of an object as a string constant in g++? Example:

struct s { } x;

If &x == 1234, then I need "1234" in my code.

EDIT:

By string constant I meant that I need that constant string at compile- or link-time. I need to embed it in inline assembly code like this:

template < typename U >
struct T {
  static int x;
  void f () {
    asm (".word " some-expression-containing-(&x));
  }
};

I don’t know a way to construct the mangled name with a preprocessor macro, so I asked this question.

The solution doesn’t need to be portable, g++ is sufficient.

The address itself is known at compile- or link-time though, as it would work to examine the assembly output and put in the mangled name into the inline assembly instruction.

Answer 1

template<class U>
struct T {
  static int x;
  void f () {
    asm (".word %0" : "m" (&x));
  }
};

This works for me in g++.