Program Control Statements

The following table lists statements that affect program control.

Statements
Name	Description
CASE	Within a SELECT CASE structure, marks a block of statements that are executed if an associated value matches the SELECT CASE expression.
CONTINUE	Often used as the target of GOTO or as the terminal statement in a DO loop; performs no operation.
CYCLE	Advances control to the end statement of a DO loop; the intervening loop statements are not executed.
DO	Marks the beginning of a loop construct. Statements through and including the ending statement may be executed repeatedly.
DO WHILE	Evaluates statements in the DO WHILE loop, through and including the ending statement, until a logical condition becomes .FALSE..
ELSE	Marks an optional branch in an IF construct.
ELSE IF	Marks an optional branch in an IF construct.
ELSEWHERE	Marks an optional branch in a WHERE construct.
END	Marks the end of a program unit.
END DO	Marks the end of a series of statements following a DO or DO WHILE statement.
END FORALL	Marks the end of a series of statements following a block FORALL statement.
END IF	Marks the end of a series of statements following a block IF statement.
END SELECT	Marks the end of a SELECT CASE statement.
END WHERE	Marks the end of a series of statements following a block WHERE statement.
EXIT	Terminates execution of a DO construct. Execution continues with the first statement that follows.
FORALL	Indicates a loop construct where the output from one iteration cannot change the input to another.
GOTO	Transfers control to a specified part of the program.
IF	Controls conditional execution of other statements.
PAUSE	Suspends program execution and, optionally, executes operating-system commands.
SELECT CASE	Transfers program control to a block of statements, determined by a controlling argument.
STOP	Terminates program execution.
WHERE	Controls conditional execution of array assignments and elemental function calls.