Function alloc

3rdparty/bgfx/src/bgfx.cpp:4168–4175

	}

	const Memory* alloc(uint32_t _size)
	{
		BX_ASSERT(0 < _size, "Invalid memory operation. _size is 0.");
		Memory* mem = (Memory*)bx::alloc(g_allocator, sizeof(Memory) + _size);
		mem->size = _size;
		mem->data = (uint8_t*)mem + sizeof(Memory);
		return mem;
	}

	const Memory* copy(const void* _data, uint32_t _size)
	{