8.4 Logical-IF Statement

The logical-IF statement is best regarded as a special case of the IF-block when it only contains one statement. Thus:

        IF(E .NE. 0.0) THEN
            RECIPE = 1.0 / E
        END IF

can be replaced by a single logical-IF statement: IF(E .NE. 0.0) RECIPE = 1.0 / E

The general form of the logical-IF statement is: IF( logical-expression ) statement The statement is executed only if the logical expression has a true value. Any executable statement can follow except DO, IF, ELSE IF, ELSE, END IF, or END.