Question

I’m a beginner. I don’t know why I can’t use strings. It says string does not have a type.

main.cpp

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

using namespace std;

int main() {

    Pancake good;

    good.setName("David");

    cout << good.name << endl;

}

Pancake.h

#ifndef PANCAKE_H
#define PANCAKE_H
#include <string>

class Pancake {
    public:
        void setName( string x );
        string name;
    protected:
    private:
};

#endif // PANCAKE_H

Pancake.cpp

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

using namespace std;

void Pancake::setName( string x ) {
    name = x;
}

This only happens when I use strings. When I use a integer and replace string x with int x in all instances of string x it then works. But why?

Answer 1

You’ve simply left out the namespace in your header file:

#ifndef PANCAKE_H
#define PANCAKE_H
#include <string>

class Pancake {
    public:
        void setName( std::string x );
        std::string name;
    protected:
    private:
};

#endif // PANCAKE_H

It might be best to avoid using namespace ... and instead accept the extra typing with prepending the namespace.