Run-time Errors

Run-time errors are, to a certain extent, taken care of by the error handling system and will be translated into category 2 or 3 errors. Many of them can, however, not be predicted and will therefore be presented to the system user in an ordinary way, i.e. on the display or in the log. The interpretation of such an error message is of course depending on the kind of operating system used. Most operating systems can give run-time errors with different degrees of severity (warnings, errors, ) and the actions to be taken by the user will be accordingly. The operating system vendor supplies documentation on errors of this category.

These errors may be normal, i. e. they report situations like "No more disc space". In this case the error reason can easily be removed and the program restarted, if necessary. Other kinds of errors like "Floating zero divide" must be reported to the systems maintenance personnel.