Open Watcom FORTRAN 77 Language Reference

Language Reference
2.73 RETURN Statement
RETURN [e]
where:
e
is an integer expression.
A RETURN statement is used to terminate execution of a subprogram and return control to the program unit
that referenced it. As an extension to FORTRAN 77, Open Watcom FORTRAN 77 permits the use of the
RETURN statement in the main program. When a RETURN statement is executed in the main program,
program execution terminates in the same manner as the STOP or END statement.
The expression e is not permitted when returning from an external function subprogram (or main program);
it can only be specified when returning from a subroutine subprogram.
Example:
FUNCTION ABS( A )
ABS = A
IF( A .GE. 0 )RETURN
ABS = -A
RETURN
END
For more information, see the chapter entitled "Functions and Subroutines" on page 243.
132 RETURN Statement