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#include <Windows.h>
#include <new>
 
void *operator new(std::size_t size) noexcept(false) {
  static HANDLE h = ::HeapCreate(0, 0, 0); // Private, expandable heap.
  if (h) {
    return ::HeapAlloc(h, 0, size);
  }
  throw std::bad_alloc();
}
 
// noNo corresponding global delete operator defined.

#include <Windows.h>
#include <new>

class HeapAllocator {
  static HANDLE h;
  static bool init;
 
public:
  static void *alloc(std::size_t size) noexcept(false) {
    if (!init) {
      h = ::HeapCreate(0, 0, 0); // Private, expandable heap.
      init = true;
    }
 
    if (h) {
      return ::HeapAlloc(h, 0, size);
    }
    throw std::bad_alloc();
  }
 
  static void dealloc(void *ptr) noexcept {
    if (h) {
      (void)::HeapFree(h, 0, ptr);
    }
  }
};
 
HANDLE HeapAllocator::h = nullptr;
bool HeapAllocator::init = false;

void *operator new(std::size_t size) noexcept(false) {
  return HeapAllocator::alloc(size);
}
 
void operator delete(void *ptr) noexcept {
  return HeapAllocator::dealloc(ptr);
}