GSL

The lifetime safety profile in the C++ core guidelines boils down to one issue: don't dereference a possible invalid pointer. A pointer may be invalid because it is not initialised or the nullptr. A pointer may also point beyond its rage or to a deleted object.

Informally, profiles are a subset of rules of the C++ core guidelines for specific concerns such as type safety, bounds safety, and lifetime safety. Thanks to the guideline support library, they can be checked

The guidelines support library (GSL) is a small library for supporting the guidelines of the C++ core guidelines. It should help to write better C++ programs. Therefore, its key concerns are memory safety and type safety. They are already a few implementations of the GSL available.