https://allthingsembedded.com/tags/container/Recent content in Container on AllThingsEmbeddedHugoen-usSun, 02 Jan 2022 17:02:33 +0200https://allthingsembedded.com/post/data_structure_static_pointer/Sun, 02 Jan 2022 17:02:33 +0200https://allthingsembedded.com/post/data_structure_static_pointer/<p>One of the nice things about <code>C++</code> compared to <code>C</code> is its ability to define reusable types and data structures. They make code reuse easier and also help with reasoning if the abstraction is high-level enough.</p> <p>Today we are going to talk about <code>static_ptr</code> from the library <a href="https://github.com/javier-varez/ditto">Ditto</a>. Dynamic allocation is often forbidden when developing embedded systems. This leads to allocating most things either in the stack or globally. A <code>static_ptr</code> allows the user to statically allocate an object of a derived class and access it as a base class pointer. The nice thing is that it allows to easily implement the <code>factory pattern</code> if only one instance of each child is required at a time.</p>