GNAT Reference Manual
About This Guide
This manual contains useful information in writing programs using the
GNAT compiler. It includes information on implementation dependent
characteristics of GNAT, including all the information required by Annex
M of the standard.
Ada 95 is designed to be highly portable,and guarantees that, for most
programs, Ada 95 compilers behave in exactly the same manner on
different machines. However, since Ada 95 is designed to be used in a
wide variety of applications, it also contains a number of system
dependent features to be used in interfacing to the external world.
Note: Any program that makes use of implementation-dependent features
may be non-portable. You should follow good programming practice and
isolate and clearly document any sections of your program that make use
of these features in a non-portable manner.
