Hi,

I’ve got the following issue, and… yesssss I can see how the
reporter could come to the conclusion that it should “return”
1, but…

… at what point does “continue” “return”? Where do I stop
operating?

mksh does indeed deviate from all the other shells here, but
I’m puzzled how they’d even implement that; mksh in the case
of a break or continue unwinds to the enclosing loop, then
sets the variable tracking the exit status to 0; the continue
command does not rightly return if it executes.

If it did, where would we stop? { continue; ls; } && ls || ls

I guess I’m asking for a blessing to support my reading that
continue may unwind as soon as it executes and that writing
“! continue” and expecting the ! to negate the errorlevel if
the continue successfully executes is unreasonable.

---------- Forwarded message ----------
From: Oğuz İsmail Uysal <2053...@bugs.launchpad.net>
Date: Tue, 13 Feb 2024 17:30:06 -0000
Subject: [Bug 2053053] [NEW] for loop exit status

Public bug reported:

The following shell script should print 1 according to POSIX:

  for x in y; do
    ! continue
  done
  echo $?

But it prints 0 on mksh

** Affects: mksh
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2053053

Title:
  for loop exit status

Status in mksh:
  New

Bug description:
  The following shell script should print 1 according to POSIX:

    for x in y; do
      ! continue
    done
    echo $?

  But it prints 0 on mksh

To manage notifications about this bug go to:
https://bugs.launchpad.net/mksh/+bug/2053053/+subscriptions

  • sh 'continue' shenani... Thorsten Glaser via austin-group-l at The Open Group
    • Re: sh 'continue... Chet Ramey via austin-group-l at The Open Group
      • Re: sh 'cont... Oğuz via austin-group-l at The Open Group
        • Re: sh '... Harald van Dijk via austin-group-l at The Open Group
          • Re: ... Oğuz via austin-group-l at The Open Group
            • ... Harald van Dijk via austin-group-l at The Open Group
              • ... Oğuz via austin-group-l at The Open Group
                • ... Harald van Dijk via austin-group-l at The Open Group
                • ... Oğuz via austin-group-l at The Open Group
                • ... Robert Elz via austin-group-l at The Open Group
        • Re: sh '... Chet Ramey via austin-group-l at The Open Group

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