为什么不允许按值将数组传递给C和C ++中的函数? [英] Why it is not allowed to pass arrays by value to a function in C and C++?

问题描述

C和C ++允许按值将结构和对象传递给函数，尽管可以防止按值传递数组.

C and C++ allows passing of structure and objects by value to function, although prevents passing arrays by values.

为什么?

推荐答案

在C/C ++中，内部将数组作为指向某个位置的指针传递，基本上，是通过值传递.事实是，复制的值表示相同位置的内存地址.

In C/C++, internally, an array is passed as a pointer to some location, and basically, it is passed by value. The thing is, that copied value represents a memory address to the same location.

顺便说一下，在C ++中，vector<T>被复制并传递给另一个函数.

In C++, a vector<T> is copied and passed to another function, by the way.

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