operator new overload

#include <iostream>
#include <new>
#include <iomanip>
#include <malloc.h>

#ifdef _DEBUG
void* _perform_alloc(std::size_t count)
{
    std::cout << "[DEBUG] Allocating "
                        << std::dec << count
                        << " bytes of heap memory" << std::endl;

    void *ptr = malloc(count);

    if (!ptr) {
        std::cerr << "[DEBUG] Allocation failed" << std::endl;
        throw std::bad_alloc();
    }

    std::cout << "[DEBUG] Allocated at "
                        << std::showbase << std::hex << ptr
                        << std::endl;
    return ptr;
}

void* operator new(std::size_t count)
{
    return _perform_alloc(count);
}

void* operator new[](std::size_t count)
{
    return _perform_alloc(count);
}
#endif

int main()
{
    int *t1 = new int;

    int *t2 = new int[20];

    double *t3 = new double[2000000000]; // This really should fail

    return 0;
}