The st_tree library implements a C++ template tree container class for storing data in arbitrary tree structures. st_tree is short for “standard template tree,” and supports STL-compatible interfaces ...

The NVIDIA C++ Standard Library works across your entire codebase, both in and across host and device code. libcu++ is a C++ Standard Library for your entire system, not just your CPU or GPU.

C++ 23, a planned upgrade to the popular programming language, is now feature-complete, with capabilities such as standard library module support.On the horizon is a subsequent release, dubbed C++ 26.

From Microsoft, Active Template Library (ATL) is a set of C++ classes for building COM (Common Object Model) objects, with support for COM features such as dual interfaces, standard COM enumerator ...

Insoftware development, there are various problems for which union types are a suitable solution. In $\\mathbf{C}$, and in the earlier $\\mathrm{C}++$ versions only untagged unions were available.