will stl deque reallocate my elements (c++)?

Question

Hi I need an stl container which can be indexed like a vector but does not move old elements in the memory like a vector would do with resize or reserve (Unless I call reser

Answer 1

std::deque "never invalidates pointers or references to the rest of the elements" when adding or removing elements at its back or front, so yes, when you only push_back the elements stay in place.