cstring header file

Hello,

I was writing a code with strlen and strcpy functions, and I realized that I forgot to include <cstring> header file. But the program run without any problem. My program included <iostream> header file and I am wondering if <iostream> contains <cstring> header file.

I tried the following code:

Code:

//#include <iostream>
int main()
{
    char arr[5];
    std::strcpy(arr, "Hey");
    return 0;
}

When I omit first line, the compiler gives an error saying strcpy is not a member of std, but when I include the first line, it runs fine.

Thanks.

I am wondering if <iostream> contains <cstring> header file

Possibly, but you should not depend on that, as it may vary from compiler to compiler. Just #include <cstring> yourself.

Oh, Ok. Thanks.