Question

I am using vector as a buffer to store some objects to be later appended to another vector.

std::vector<Link*> buffer_vector;
std::vector<Link*> main_vector;
main_vector.insert(main_vector.end(),buffer_vector.begin(),buffer_vector.end());

The process of filling the buffer and appending occurs repeatedly. Therefore I need to clear the buffer at every iteration. My concern is if I use .erase or .clear methods to clear the buffer, the objects in the main vector will be deleted. Is this assumption correct?
If yes, is there a workaround for that?

Thank you

vahid

Answer 1

Your concern is incorrect.

main_vector.insert(main_vector.end(),buffer_vector.begin(),buffer_vector.end()); copies the elements from buffer_vector into main_vector.

These copied elements are totally separate from the original elements, and so they are not affected by modifications to the elements that they were copied from.