Realloc in C++ with new

cpp_realloc.cpp

#include <iostream>

class Test { 
	public:
		int a,b,c; 
		Test() { a=b=c=10; } 
};
       
int main() { 
	Test *t; 
	t = new Test;
	
	std::cout << "t = new Text\n";
	std::cout << "t = " << t << "\n";

	t = new(t) Test[5]; 
	
	std::cout << "t.a = 5\n";
	std::cout << "t.c = 5\n";

	t->a = 5;
	t->c = 5;
	std::cout << "t = new(t) Text[5]\n";
	std::cout << "t = " << t << "\n";

	std::cout << "for ( int i = 0; i < 5; i++ )\n";
	for ( int i = 0; i < 5; i++ )
	{
		std::cout << " &t["<<i<<"] = "<<&t[i]<<"\n";
	}

	std::cout << "t->a = "<<t->a<<"\n";
	std::cout << "t->b = "<<t->b<<"\n";
	std::cout << "t->c = "<<t->c<<"\n";
	return 0; 
}

/*
t = new Text
t = 0x134d010
t.a = 5
t.c = 5
t = new(t) Text[5]
t = 0x134d010
for ( int i = 0; i < 5; i++ )
 &t[0] = 0x134d010
 &t[1] = 0x134d01c
 &t[2] = 0x134d028
 &t[3] = 0x134d034
 &t[4] = 0x134d040
t->a = 5
t->b = 10
t->c = 5
*/