Memory Allocation: new and delete operators, dynamic constructor

Memory Allocation: new and delete operators, dynamic constructor 

C++ provides two operators new and delete for dynamic memory usage. The new operator allocates memory from a free store while the delete operator returns the allotted memory to free store. For built-in types we use them as follows 

int * p, 

*arr ; 

p =new int; 

arr = new int[30]; 

delete p; 

delete [] arr; // we need not specify the size 

For user-defined types it is similar 

fraction *single, *vector; 

single = new fraction; 

vector = new fraction[30]; 

Thanks

Mukesh Rajput