在 C/C++ 中是否有复制数组的函数?
问题描述：
我是一名学习 C/C++ 的 Java 程序员.所以我知道 Java 有一个类似 System.arraycopy(); 的函数.复制一个数组.我想知道 C 或 C++ 中是否有一个函数来复制数组.我只能找到通过使用 for 循环、指针等来复制数组的实现.有没有可以用来复制数组的函数?
I am a Java programmer learning C/C++. So I know that Java has a function like System.arraycopy(); to copy an array. I was wondering if there is a function in C or C++ to copy an array. I was only able to find implementation to copy an array by using for loop, pointers,etc. Is there a function that I can use to copy an array?
答
从C++11开始，你可以直接用std::array复制数组:
Since C++11, you can copy arrays directly with std::array:
std::array<int,4> A = {10,20,30,40};
std::array<int,4> B = A; //copy array A into array B
这里是关于 std::array