Question

C++: I have a user-defined type whose member function is also a user-defined type. I get compile-time errors when I try to cout that member function. How do I output that member function?

Answer 1

for example:

#include "std_lib_facilities.h"

struct Instructions {
public:
Instructions(string i) :instr(i) {}
string display() const;
string Inst() {return instr;}

private:
string instr; //MP A.1
};

struct Recipe {
public:
Recipe (int id, string n, Instructions a) :recipe_id(id), chef_name(n), instr(a) {}

string display() const;
int Recipe_ID() {return recipe_id;}
string Chef_name() {return chef_name;}
Instructions Instr() {return instr;}
private:
int recipe_id;
string chef_name;
Instructions instr;
};

int main()
{
int rec_id=0;
string chef_name="";
string instructions="";

Instructions inst(instructions);
Recipe meow(rec_id, chef_name, inst);

cout << meow.Instr() << endl; //compile-time error: operator overload
}