EDA is an Eiffel implementation of the General Decimal Arithmetic Specification. It allows unlimited precision decimal arithmetic. By implementing the GDA Specification version 1.08, the library conforms to the requirements of the ANSI/IEEE standard 854-1987, while supporting integer and unrounded floating-point arithmetic as a subset. EDA is part of the SAFE project.
Unix integration is OK
Runs on Linux/Unix, using UnixODBC (http://www.unixodbc.org).
Has been tested with PostgreSQL 7.0.2.