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ex4-6.cpp - Example 4-6 When is a constructor called? (1) |
// File: ex4-6.cpp - test when a constructor is called
#include <iostream>
using namespace std;
class Z
{
public:
Z(void) { cout << "Z's constructor is called now" << endl;}
};
int main(void)
{
cout << "\n1. Is the constructor called?\n";
Z z; // declare a Z
cout << "\n2. Is the constructor called?\n";
Z bunch[5]; // declare a bunch of Zs
cout << "\n3. Is the constructor called?\n";
Z* ptrZ; // declare a pointer to Z
cout << "\n4. Is the constructor called?\n";
Z* a_new_prtZ = new Z; // allocate memory for a Z
cout << "\n5. Is the constructor called?\n";
Z* threeZ = new Z[3]; // allocate memory for 3 Zs
cout << "\n6. Is the constructor called?\n";
Z** ptr_ptr_Z; // declare a ptr to ptr to a Z
cout << "\n7. Is the constructor called?\n";
Z** ptr_ptr_newZ = new Z*; // allocate memory for a ptr to ptr to a Z
return 0;
}
CIS27: Programming in C++ Instructor: Joe Bentley