System Variable ELX - Revision history

Robert Wallick: Quad DM, useful 'where'

2015-02-11T23:11:02Z

Quad DM, useful 'where'

← Older revision		Revision as of 19:11, 11 February 2015
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	Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.<br>		Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.<br>
	An APL Interpreter error (such as 'Domain Error') which '''triggers ⎕ELX''' will ''also'' send a Diagnostic Error Message to<br>		An APL Interpreter error (such as 'Domain Error') which '''triggers ⎕ELX''' will ''also'' send a Diagnostic Error Message to<br>
	⎕DM, for debugging purposes, if needed by User.		⎕DM, for debugging purposes, if needed by User. '''⎕ELX is useful''' in situations when a ''known error occurs'' and the User Function<br>
			knows how to '''work around or deal with it appropriately''' by say branching to a special line of APL code.

	'''See ALSO: [[System_Function_EA\|⎕EA Execute Alternate]] and [[System_Variable_DM\|Quad DM or ⎕DM]]'''		'''See ALSO: [[System_Function_EA\|⎕EA Execute Alternate]] and [[System_Variable_DM\|Quad DM or ⎕DM]]'''

Robert Wallick: ⎕DM tie-in added

2015-02-11T23:04:59Z

⎕DM tie-in added

← Older revision		Revision as of 19:04, 11 February 2015
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	* jump to a particular label		* jump to a particular label

	Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.		Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.<br>
			An APL Interpreter error (such as 'Domain Error') which '''triggers ⎕ELX''' will ''also'' send a Diagnostic Error Message to<br>
			⎕DM, for debugging purposes, if needed by User.

	'''[[System_Function_EA\|~~See ALSO:~~ ⎕EA Execute Alternate]]'''		'''See ALSO: [[System_Function_EA\|⎕EA Execute Alternate]] and [[System_Variable_DM\|Quad DM or ⎕DM]]'''


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Robert Wallick: added cross ref to quad EA

2015-02-05T00:39:49Z

added cross ref to quad EA

← Older revision		Revision as of 20:39, 4 February 2015
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	Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.		Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.

			'''[[System_Function_EA\|See ALSO: ⎕EA Execute Alternate]]'''


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Paul Robinson at 13:12, 13 March 2013

2013-03-13T13:12:38Z

← Older revision		Revision as of 09:12, 13 March 2013
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Paul Robinson: new

2013-02-28T08:42:57Z

new

← Older revision		Revision as of 04:42, 28 February 2013
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			<h1>{quad}ELX - Error Latent Expression</h1>
			{{BoxStart\|⎕ELX
			\| Set action to take on error}}
			{{BoxEnd\|⎕ELX←'<i>string</i>'}}
	This system variable takes a string. That string is executed when the interpreter encounters an error.		This system variable takes a string. That string is executed when the interpreter encounters an error.
	In particular the string may...		In particular the string may...

Paul Robinson: add template

2013-02-22T03:41:20Z

add template

← Older revision		Revision as of 23:41, 21 February 2013
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	Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.		Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.

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Kai: New page: This system variable takes a string. That string is executed when the interpreter encounters an error. In particular the string may... * call a function * jump to a particular label Note ...

2009-07-29T06:27:04Z

New page: This system variable takes a string. That string is executed when the interpreter encounters an error. In particular the string may... * call a function * jump to a particular label Note ...

New page

This system variable takes a string. That string is executed when the interpreter encounters an error.
In particular the string may...
* call a function
* jump to a particular label

Note that <apll>⎕ELX</apll> can be localized and set dynamically to whatever it needs to deal with errors appropriately.