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/**
 *   ~~~~~ One argument constructor with operator overloading ~~~~~
 * 
 * Demonstrates which is called when, when both overloaded assignment operator
 * and one-argument constructor is defined.
 * 
 * Observation: During object creation, one argument constructor is called, while during
 * object assignment, operator function is called.
 */
 
#include <iostream>
using namespace std;
 
class A{
 
private:
	static int a;
public:
	A(int);
	void print();
	static void operator =(int);
};
 
// Allocation for static
A::a;
 
// One argument constructor
A::A(int b){
	cout<<"Inside one argument constructor"<<endl;
	this->a=b;
}
 
static void A:: operator =(int b){
	cout<<"Inside operator function"<<endl;
	this->a = b;
}
 
void A::print(){
	cout<<"Value of a ="<<a<<endl;
}
 
int main() {
 
	/* INITIALIZATION */
	A obj1=2;
	obj1.print();
 
	/* ASSIGNMENT */
	obj1=3;
	obj1.print();
 
	return 0;
}

prog.cpp:21:28: error: ‘static void A::operator=(int)’ must be a nonstatic member function
  static void operator =(int);
                            ^
prog.cpp:17:13: error: ‘int A::a’ is private
  static int a;
             ^
prog.cpp:25:4: error: within this context
 A::a;
    ^
prog.cpp:25:1: error: ‘a’ in ‘class A’ does not name a type
 A::a;
 ^
prog.cpp:33:13: error: prototype for ‘void A::operator=(int)’ does not match any in class ‘A’
 static void A:: operator =(int b){
             ^
prog.cpp:14:7: error: candidates are: A& A::operator=(A&&)
 class A{
       ^
prog.cpp:14:7: error:                 A& A::operator=(const A&)

Standard output is empty