HP 3000 Manuals

HP FORTRAN 77/iX Reference

ONETRIP Directive 

The ONETRIP directive turns on or off the requirement that the body of
each DO loop (other than DO WHILE loops) is executed at least once, in
compliance with the previous ANSI 66 standard.

Syntax 

$ONETRIP [ON ]
         [OFF]

Default               Off; individual DO loop bodies are not required to
                      execute at least once.

Location              The ONETRIP directive must appear before any
                      nondirective statements in the program unit.

Toggling/ Duration    Cannot be toggled after the appearance of
                      nondirective statements in a program unit.

MPE/iX 5.0 Documentation