Re: Temporarily suppress all error messages

Le 19/05/2026 à 17:52, Barton Willis a écrit :

> Should :lisp(setf *error-output* (make-output-string-stream)) be 
> :lisp(setf *error-output* (make-string-output-stream))?
>
>
You are right, this works, the other doesn't, because 
make-output-string-stream is a function in sbcl-impl etc.

This being said seeing all format output suppressed seems to me quite 
strange. Moreover this also kills merror messages,

but not mtell messages, so in my opinion should be discouraged.

(%i1) :lisp(setf *error-output* (make-string-output-stream))

#<STRING-OUTPUT-STREAM {1201BA2CE3}>
(%i1) "1/0"~;

(%i1) ?merror("What a mess");

(%i2) ?mtell("What a mess");
What a mess(%o2)                                false


-- 
Michel Talon

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