gistfile1.txt

#pragma region Memory usage tracer
// tracing new/delete
static size_t max_align = __alignof(std::max_align_t);
#ifdef TRACE_MEMUSAGE
static size_t memusage = 0;
void* operator new  (std::size_t count)
{
	memusage += count;
	void* result = malloc(count + max_align);
	*(size_t*)result = count;
	return (void*)((uintptr_t)result + max_align);
}

void operator delete  (void* ptr)
{
	if (ptr)
	{
		ptr = (void*)((uintptr_t)ptr - max_align);
		memusage -= *(size_t*)ptr;
		free(ptr);
	}
}

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

void operator delete[](void* ptr)
{
	operator delete(ptr);
}

void report_memusage(const char* const point)
{
	printf("(%s) memory usage: %d kB\n", point, (memusage + 1023) / 1024);
}
#else
void report_memusage(const char* const)
{
}
#endif
#pragma endregion