C++用参数返回结果与用返回值返回结果的思考

/***
*xvkBuffer作为参数比写为返回值的好处是：
*1，xvkBuffer可以是堆变量或栈变量，若写为返回值则只能是堆上申请，因为必须保证它的永久性
*2，xvkBuffer或作为栈变量返回显然是不行的，因为它不持久
*/
void XVulkan::CreateBuffer(VkBufferUsageFlagBits usage, UINT size, OUT XVkBuffer& xvkBuffer)
{
    VkBufferCreateInfo info = {};
    info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
    info.usage = usage;
    info.size = size;
    info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;

    auto ret = vkCreateBuffer(vkDevice, &info, NULL, &xvkBuffer.info.buffer);
    CheckResult(ret);


}