INCLAN: do

Synopsis

do

sequence of statements

end do

or

do variable start end [step] [parallel [continue]]

sequence of statements

end do

Description

Executes a loop within a macro. Without parameters the loop is executed unconditionally, i.e. until one of the statements break, exit, quit or return is encountered.

do followed by parameters executes a FORTRAN-77 do-loop within a macro. The loop counter variable and the integer expressions start, end, and step have the usual meaning. Parallel loops are executed in parallel on nproc processors. If the keyword continue is present, the program continues immediately with the execution of the next statement after the parallel loop. Otherwise, the next statement after the loop is executed when the parallel loop is finished.

Examples

do
  if (filename.eq.' ') break
    .
    .
end do

do i 1 10
  print "Iteration $i."
end do

See also

nproc