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Re: How to determine whether a message has been switched


Thanks Carl, this answers my question.

On Nov 20, 6:56 pm, Carl Woll <c... at wolfram.com> wrote:
> Andrew Moylan wrote:
> >Hi all,
>
> >When writing algorithms, I sometimes decide to disable a particular
> >message using the function Off[]. At the end of my routine, I re-enable
> >the message using the function On[].
>
> >Unfortunantely, if the message in question has already been turned off
> >(by some other function, for example), then my code will have the
> >unfortunate side-effect of switching it back on. What I really want is
> >to disable the message for the duration of my routine, and then set it
> >back to its original state at the end of my routine.
>
> >Thus: Is there some way to determine whether a message has been
> >switched Off[] (or On[])?
>
> >Cheers,
> >AndrewLook at the message:
>
> Off[General::spell1]
>
> In[2]:=
> General::spell1
> Out[2]=
> $Off[Possible spelling error: new symbol name "`1`" is similar to existing \
> symbol "`2`".]
>
> Messages that have been turned off are wrapped in $Off.
> 
> Carl Woll
> Wolfram Research


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