The GNAT Reusable Components Collection (GNATColl) - Minimal package.

The GNATColl reusable library is based on one main principle: general-purpose
packages that are part of the GNAT technology should also be available to GNAT
user application code. The compiler front end, the GNAT Programming Studio
(GPS) Interactive Development Environment, and the GNAT Tracker web-based
interface all served as sources for the components.

The GNATColl components complement the predefined Ada and GNAT libraries and
deal with a range of common programming issues including string and text
processing, memory management, and file handling. Several of the components are
especially useful in enterprise applications.

The Minimal package is aimed for use in non-native contexts or restricted
run-times, such as atomic counters, locks, and promises.