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For bug reports, future enhancements and a full version history see [[EventCodes/ProjectPage]]

||Original author: ||KaiJaeger ||
||Responsible: ||KaiJaeger ||
||Email: || kai@aplteam.com ||

Event codes

Dyalog uses number to represent errors. Those errors are accessible via ⎕EN. However, when one want to specify an error with a :Trap or a ⎕TRAP statement then one must use integers.

Although a seasoned programmer will over time memorize the most important error numbers, the unusual ones will escape her.

There is a better solution to this: use symbolic names which are effectively constants (strictly speaking read-only variables) carrying the integer. That's that the EventCode class is for: it offers symbolic names for all trappable events up to and including version 15.0.

Examples: 

      EventCodes.DEADLOCK
1008
      EventCodes.GetName 1008
DEADLOCK
      EventCodes.List'T'
 TIMEOUT            1006
 TRANSLATION_ERROR    92
 TRAP_ERROR           84
      ⍴EventCodes.List''
53 2

CategoryAplTree

EventCodes (last edited 2018-03-03 11:45:46 by KaiJaeger)