EXIT Statement

Statement: Terminates execution of a DO construct.

Syntax

EXIT [name]

name
(Optional) Is the name of the DO construct.

Description

The EXIT statement causes execution of the named (or innermost) DO construct to be terminated.

If a DO construct name is specified, the EXIT statement must be within the range of that construct.

Any DO variable present retains its last defined value.

An EXIT statement can be labeled, but it cannot be used to terminate a DO construct.

See Also

DO, DO WHILE

Examples

The following example shows an EXIT statement:

LOOP_A : DO I = 1, 15
  N = N + 1
  IF (N > I) EXIT LOOP_A
END DO LOOP_A

The following shows another example:

CC  See CYCLE.F90 in the TBD for an example of EXIT in nested
CC  DO loops
CC  Loop terminates early if one of the data points is zero:
CC
    INTEGER numpoints, point
    REAL datarray(1000), sum
    sum = 0.0
    DO point = 1, 1000
      sum = sum + datarray(point)
      IF (datarray(point+1) .EQ. 0.0) EXIT
    END DO