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Updated wikipage Managing CTRL+C in console application. (Signed-off-by:tioui).

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documentation/18.11/eiffel/Tutorials/Mini-HowTo/Managing-CTRL-C-on-console.wiki
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[[Property:modification_date|Wed, 17 Apr 2019 14:02:25 GMT]]
[[Property:modification_date|Wed, 17 Apr 2019 14:03:09 GMT]]
[[Property:publication_date|Wed, 17 Apr 2019 14:02:25 GMT]]
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[[Property:title|Managing CTRL+C in console application]]
Normally, if the user uses the CTRL+C keys, the Eiffel application detect it as an error and throw an exception of type <code>OPERATING_SYSTEM_SIGNAL_FAILURE</code>.
To manage the CTRL+C keys, you can use a <code>rescue</code> clause to detect the exception and a <code>retry</code> mecanism to cancel the exception handeling done by the Eiffel runtime.
To manage the CTRL+C keys, you can use a <code>rescue</code> clause to detect the exception and a <code>retry</code> mechanism to cancel the exception handeling done by the Eiffel runtime.
To detect the exception, you can <code>inherit</code> from the <code>EXCEPTIONS</code> class and use an attachment test on <code>Exception_manager.last_exception</code>.