Question

another C++ question :)

learning to use functions and objects. I separate a class with functions in a different file functions.cpp
one of the functions string GetName(); appears as a invalid member of the class in the header file functions.h.... whats wrong?

Answer 1

functions.cpp file

#include "functions.h"
#include <iostream>
#include <string>

using namespace std;

class functions {
public:

void SetName(string x){
name = x;
}
string GetName(){
return name;
}
private:
string name;

};

Answer 2

functions.h file

#ifndef FUNCTIONS_H
#define FUNCTIONS_H


class functions
{
public:
void SetName();
string GetName();


};

#endif // FUNCTIONS_H

Answer 3

I believe you need to include the function's class into this second class, and by doing that you will be able to call it's methods...

I am not sure tho, this is how it's done in java.

You're creating a class with functions of setting and getting a name. To access these you need to call the class that contains the set and get, and then use them. You also should actually set a string, and use a printf statement to see what the name is when returned.

Answer 4

AFAIK, in the cpp file the class isn't redeclared, it's just a bunch of function definitions. The function definitions need to have the full name of the function:

#include "functions.h"
#include <iostream>
#include <string>

void functions::SetName(string x)
{
name = x;
}

string functions::GetName()
{
return name;
}


name doesn't need any declaration in the cpp file. Classes are their own namespace, so your using statement is (AFAIK) useless. This reply should work with you header file.

Answer 5

Well first of all, in order to help you , please define what the problem is.{.learning to use functions and objects. I separate a class with functions in a different file functions.cpp one of the functions string GetName(); appears as a invalid member of the class in the header file functions.h.... whats wrong?} 2. Just by looking at it your code is missing input , at the moment your code is all out put., which makes your code hard to read, and understand .

Answer 6

ok I see u guys are a lil bit confused with my question I will include the main function so it might get a lot more cleared. Just think that each reply is a different file.. the file name is always in the top of the reply. thanks

Answer 7

main.cpp


#include <iostream>
#include <string>
#include "functions.h"
using namespace std;


int main()
{
string name;

functions fobject;
cout << "What is your name\n";
getline(cin, name);
fobject.SetName(name);

cout << "Your name is " << fobject.GetName() << endl;
return 0;
}

Answer 8

ok.. cool..lol .. in C++ it goes header file, class file ,{ class files, } then class main.. that way it's easy to troubshoot..

Answer 9

the error is that the compiler says that the class function have no member named GetName

Answer 10

not sure but i think it should be
functions fobject ( parm 1, parm2)
cout << "What is your name\n"; getline(cin, name); fobject.SetName(name); cout << "Your name is " << fobject.GetName() << endl; return 0;

Answer 11

Yeh, that's the absolute path: functions::GetName

Answer 12

Well nothing is working for me... I just gonna keep reading to see what I can find. Thanks for your help guys