converting a variable name to a string in C++

Question

I\'d like to output some data to a file. For example assume I have two vectors of doubles:

vector data1(10);
vector data2(10); 
         


        

Answer 1

For this case I have made nameof() macro. It returns a std::string name of a variable, type or member. It works like nameof() in C#.

For Example:

#include "nameof.h"

std::vector<double> data1(10);
std::string name = nameof(data1); // "data1"

struct Foo1
{
    struct Foo2
    {
        Foo1* foo1;
    };

    Foo1* foo1;
    Foo2 foo2;
};

name = nameof(Foo1::foo1->foo2.foo1); // "foo1"

name = nameof(123); // std::logic_error exception

Answer 2

You can use the preprocessor, there's a stringify token, but it's only available from the source, not to a function (you'd get the argument name).