cpp_mem.cpp

void* malloc(unsigned int numBytes)
{
	void* pointer; //will point to the allocated buffer after its allocated

	//request virtual memory from OS -- this is a real win32 function
	pointer = VirtualAlloc(
		NULL, 
		numBytes,
		MEM_COMMIT | MEM_RESERVE, //allocate virtual memory, AND put it in real memory right now (virtual memory can return a virtual pointer to the hard drive, and then swap it into memory on demand)
		PAGE_READWRITE //can't execute code here. e.g. to prevent buffer overflows from being able to execute malicious code
	);

	return pointer; //returns NULL if out of memory
}


//wrap malloc, add support for C++ features like constructors and exceptions
template<typename T> T* operator new() throw std::bad_alloc
{
	T* that = (T*)malloc(sizeof(T));
	if (that==NULL) throw std::bad_alloc;
	that->constructor();
	return that;
}