Instantiating a class within a class
- by Ink-Jet
Hello. I'm trying to instantiate a class within a class, so that the outer class contains the inner class.
This is my code:
#include <iostream>
#include <string>
class Inner {
private:
std::string message;
public:
Inner(std::string m);
void print() const;
};
Inner::Inner(std::string m) {
message = m;
}
void Inner::print() const {
std::cout << message << std::endl;
std::cout << message << std::endl;
}
class Outer {
private:
std::string message;
Inner in;
public:
Outer(std::string m);
void print() const;
};
Outer::Outer(std::string m) {
message = m;
}
void Outer::print() const {
std::cout << message << std::endl;
}
int main() {
Outer out("Hello world.");
out.print();
return 0;
}
"Inner in", is my attempt at containing the inner within the outer, however, when I compile, i get an error that there is no matching function for call to Inner::Inner().
What have I done wrong?
Thanks.
