A perSIStent C++ variant Version 2.3.3 compiler . GNU E is a perSIStent, object oriented programming language developed as part of the Exodus project. GNU E extends C++ with the notion of perSIStent data, program level data objects that can be transparently used across multiple executions of a program, or multiple programs, without explicit input and output operations. GNU E' s form of perSIStence is based on extensions to the C++ type system to distinguish potentially perSIStent data objects from objects that are always memory resident. An object is made perSIStent either by its declaration (via a new "perSIStent" storage class qualifier) or by its method of allocation (via perSIStent dynamic allocation using a special overloading of the new operator). The underlying object storage system is the Exodus storage manager, which provides concurrency control and recovery in addition to storage for perSIStent data. restriction: Copyleft not all run-time sources are available (yet) requires: release 2.1.1 of the Exodus storage manager E-mail: . (1993-01-20)