How to properly use a header file to be a complete class?

Question

(Beginner programmer..) I\'m following the style of a header file that worked fine, but I\'m trying to figure out how I keep getting all of these errors when I compile. I am com

Answer 1

That's a funny one. You are essentially killing your class name by #define Ingredient - all occurrences of Ingredient will be erased. This is why include guards generally take the form of #define INGREDIENT_H.

You are also using name both for the member and the getter function (probably an attempt to translate C#?). This is not allowed in C++.

Answer 2

How about look on errors? variables and functions can't have same names. And include guard should never names such as class.

#ifndef INGREDIENT_H
#define INGREDIENT_H

class Ingredient {

public:
  // constructor
    Ingredient() : name(""), quantity(0) {} 
    Ingredient(std::string n, int q) : name(n), quantity(q) {}

  // accessors
    std::string get_name() const { return name; }
    int get_quantity() const {return quantity; }

  // modifier

private:
  // representation
  std::string name;
  int quantity;
};

#endif