HP 3000 Manuals

HP FORTRAN 77/iX Reference

CONTINUE Statement (Executable) 

The CONTINUE statement creates a reference point in a program unit.


            

Semantics 

The CONTINUE statement should always be written with a label; it marks a
point in the program where a label is needed but the programmer does not
want to associate the label with any specific action.

In programs in earlier versions of FORTRAN, the CONTINUE statement is
usually the last statement in a labeled DO loop that otherwise would end
in a prohibited statement such as a GOTO statement.  As a MIL-STD-1753
standard extension to the ANSI 77 standard, the END DO statement now
serves this purpose.  (See "DO Statement (Executable)"  for examples
of the END DO statement.)  If a CONTINUE statement appears elsewhere in a
program or if it is not labeled, it performs no function and control
passes to the next statement.

             Examples                                     Notes 

--------------------------------------------------------------------------------------

    DO 20 i = 1,10                 Because the last statement in the loop is a GOTO
10 x = x + 1                       statement, a CONTINUE statement terminates the
    y = SQRT(x)                    loop.
    PRINT *, y
    IF (x .LT. 25.) GOTO 20
    GOTO 10
20 CONTINUE

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