Let us try to understand the overloading of new and delete operator for arrays using below example. #include <iostream>using namespace std;void* operator new(size_t sz) { cout << “Global Memory Allocation: ” << sz << endl; void* ptr = malloc(sz); return ptr;}void operator delete(void* ptr) { cout << “Global memory Deallocation” << endl; free(ptr);}class Memory { enum { mem_size = 10 }; int arr[mem_size];public: Memory() { cout << “Memory C’tor” << endl; } ~Memory() { cout << “Memory D’tor” << endl; } void* operator new(size_t sz) { cout << “Class Memory…
Tag: Overloading Operator new and delete
Overload new and delete operator
new operator allocates the memory then calls the constructor. delete operator calls the destructor then delete the memory. As these are operators, so it can be overloaded. But why we need to overload these operators.* In case, there is lot of allocation and deallocation happens from the heap memory, it can affect the performance. So, to overcome this, we overload the new and delete operator.* Also, as part of above scenario, heap memory gets fragmented. As a result, even though there is sufficient memory present in heap, still it is…