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Hello world/Standard error (view source)

Revision as of 21:36, 7 February 2022

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Emacs Lisp: Correct solution
(Add CLU)
(Emacs Lisp: Correct solution)
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=={{header|Emacs Lisp}}==
 
<lang Emacs Lisp>
In batch mode, <code>message</code> actually prints to standard error:
(error "Goodbye, World!")▼
 
</lang>
▲<lang Lisp>(errormessage "Goodbye, World!")</lang>
<b>Output:</b>
 
<pre>
For greater control, <code>princ</code> can be used with a special printing function:
Goodbye, World!
 
</pre>
<lang Lisp>(princ "Goodbye, World!\n" 'external-debugging-output)</lang>
 
=={{header|Erlang}}==
Anonymous user
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