Program Control Statements

Transfers control to a subroutine.

Within a SELECT CASE construct, marks a block of statements that are executed if an associated value matches the SELECT CASE expression.

Identifies the block of statements to be executed in a SELECT CASE construct if the value of the expression does not match any of the CASE selectors, or in a SELECT TYPE construct if the dynamic type of the selector does not match the type of any of the TYPE IS or CLASS IS statements.

Within a SELECT TYPE construct, marks a block of statements that are executed if the type or dynamic type of an expression matches the type of the CLASS IS expression.

Often used as the target of GOTO or as the terminal statement in a DO loop; performs no operation.

Advances control to the end statement of a DO loop; the intervening loop statements are not executed.

Marks the beginning of a loop construct. Statements through and including the ending statement may be executed repeatedly.

Marks the beginning of a DO CONCURRENT construct. The order of executions of iterations of a DO CONCURRENT construct are indeterminate.

Evaluates statements in the DO WHILE loop, through and including the ending statement, until a logical condition becomes .FALSE..

Marks an optional branch in an IF construct.

Marks an optional branch in an IF construct.

Marks an optional branch in a WHERE construct.

Marks the end of a program unit. Execution of the END [PROGRAM] statement of the main program initiates normal termination for the image that executes it.

Marks the end of a series of statements in a DO, DO CONCURRENT, or DO WHILE construct.

Marks the end of a series of statements following a block FORALL statement.

Marks the end of a series of statements following a block IF statement.

Marks the end of a SELECT CASE or SELECT TYPE statement.

Marks the end of a series of statements following a block WHERE statement.

Initiates error termination for all images.

Terminates execution of a DO loop or other construct. Execution continues with the first statement that follows the construct.

Indicates a loop construct where the output from one iteration cannot change the input to another.

Transfers control to a specified part of the program.

Controls conditional execution of other statements.

Suspends program execution and, optionally, executes operating-system commands.

Transfers program control to a block of statements, determined by the value of an expression.

Transfers the program to a block of statements, determined by the dynamic type of an expression.

Initiates normal termination for the image that executes the statement.

Within a SELECT TYPE construct, marks a block of statements that are executed if the type or dynamic type of an expression matches the type of the TYPE IS expression.

Controls conditional execution of array assignments and elemental function calls.