When I return by value from an assignment operator, firstly what is the mechanism and basis of calling the copy constructor?

当我返回值赋值操作符，首先是调用复制构造函数为基础的机制？

youdao

The paper makes in-depth analysis about essence of call by values and call by references, return by value and return by reference, also explains these through some examples.

笔者系统地分析了函数参数传递中值调用和引用调用以及函数值返回和引用返回的本质，并举例进行了说明。

youdao

Effective governance helps achieve your enterprise's business goals by adding value while balancing risk and return.

有效的治理通过在增添价值的同时平衡风险和回报，从而帮助实现企业的业务目标。

youdao

As net interest return is dependent on the investments undertaken by the firm, the value of this return is highly dependent on the efforts of the research arm.

FORBES: Chuck Looks To Be Worth A Jackson

Low inflation implies that prices may have to fall by more in absolute terms to return to fair value.

ECONOMIST: World stockmarkets

Instead of focusing on aggregate demand replacement, policymakers should view government stimulus spending from an economic return perspective that focuses on the potential value created by government spending versus the potential value created by private spending.

FORBES: The Policy Value Gap, Part 1: A Fiscal Perspective