在 C 中复制结构元素与复制数组元素

Question

正如此问题的答案中所述Copying one structure to another ，我们可以通过简单的赋值将一个结构元素的内容复制到另一个结构元素。e1=e2;

但是这个简单的赋值在复制数组元素时不起作用。有人可以解释一下吗？

谢谢。

Answer 1

数组是 C 语言中的二等公民:不能将数组分配给数组，也不能从函数返回数组。

Chris Torek 在 comp.lang.c 中提供了这样的解释:

"Note that V6 C also did not support struct-valued arguments and struct-valued return values. One might, then, imagine that Dennis figured that any return value that did not fit in a register was too much work to put into the compiler at that point."