Syntax:
pragma Suppress_All;
This pragma can appear anywhere within a unit. The effect is to apply Suppress (All_Checks) to the unit in which it appears. This pragma is implemented for compatibility with DEC Ada 83 usage where it appears at the end of a unit, and for compatibility with Rational Ada, where it appears as a program unit pragma. The use of the standard Ada pragma Suppress (All_Checks) as a normal configuration pragma is the preferred usage in GNAT.