| Name | Description |
|---|---|
| Statements | |
| 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 | Evaluates statements in the DO loop, through and including the ending statement, a specific number of times |
| DO WHILE | Evaluates statements in the DO WHILE loop, through and including the ending statement, until a logical condition becomes .FALSE. |
| ELSE | Introduces an ELSE block |
| ELSE IF | Introduces an ELSE IF block |
| ELSEWHERE | Introduces an ELSEWHERE block |
| 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 | Leaves a DO loop; execution continues with the first statement following |
| FORALL | Controls conditional execution of other statements |
| GOTO | Transfers control to a specified part of the program |
| IF | Controls conditional execution of other statement(s) |
| 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 other statements |
| Routines | |
| EXIT | CALL EXIT(exitvalue). Run-time Subroutine. Terminates the program, flushes and closes all open files, and returns control to the operating system |
| RAISEQQ | RAISEQQ(sig). Run-time Function. Sends an interrupt to the executing program, simulating an interrupt from the operating system |
| SIGNALQQ | SIGNALQQ(sig, func). Run-time Function. Controls signal handling |
| SLEEPQQ | CALL SLEEPQQ(duration). Run-time Subroutine. Delays execution of the program for the specified time |