Member function of a class is not working

[abdalimran]

When I run the following code it shows me |24|error: no matching function for call to ‘info::show()’|

#include<iostream>
#include<string>

using namespace std;

class info
{
    private:
        string fname = "Prog";
        string lname = " Geek";
    public:
        void show(string fname, string lname)
        {
            cout<<fname;
            cout<<lname;
        }
};


int main ()
{
    info me;

    me.show();

    return 0;
}

Why?

[keskiverto]

Info has void show(string, string)
You call void show()

[abdalimran]

but when i write me.show(string fname, string lname);

it shows |24|error: expected primary-expression before ‘fname’|

or when i write me.show(fname, lname);

it shows |24|error: ‘fname’ was not declared in this scope|


what i exactly have to do?

[keskiverto]

http://www.cplusplus.com/doc/tutorial/functions/