What may be less obvisous is that we also cannot call such a function with an rvalue ( Section 2.3.1, p. 45) or with an object of a type that requires a conversion.

但比较容易忽略的是，调用这样的函数时，传递一个右值（第2.3.1 节）或具有需要转换的类型的对象同样是不允许的。

youdao

What may be less obvisous is that we also cannot call such a function with an rvalue ( Section 2.3.1, p. 45) or with an object of a type that requires a conversion.

但比较容易忽略的是，调用这样的函数时，传递一个右值（第2.3.1 节）或具有需要转换的类型的对象同样是不允许的。

youdao