C++ Copy an array created with new

Question

I have created two arrays List1 and List2 with new in C++. List1 is updated with data. I would like to copy List1 to List2. I tried using

std::copy(std::begin(List1), std::end(List1), std::begin(List2));

However, this does not work and gives the following error message:

error: ‘begin’ is not a member of ‘std’

Any possible suggestions for this error? Or alternative ways to copy in C++?

Answer 1

"I have created two arrays List1 and List2 with new in C++"

The begin and end free functions won't work on a pointer.

Even if everything is correct, you may end up with no matching call to begin(T *&)

T is the type of your pointer.

Use std::vector or std::list other STL container or just simply static arrays to work with std::begin and std::end