to stringize arguments in macro, just prepend '#'

stringize-macro-arg.cpp

#include <iostream>
#include <string>

using namespace std;

//--  to stringize arguments in macro, just prepend '#'
#define SET_STR(name,x) string name(#name); cout << name << " = " << x << endl;

int main(int argc, char const* argv[])
{
  SET_STR(hoge,0);
  SET_STR(fuga,550.5);
  return 0;
}