### DumpNumber | Number

ITRAPPER keyword, values: DumpNumber | Number nn [WRAP|NOWRAP]

These two keywords are interchangeable and control the extensions of dump files. These keywords take as arguments a number nn from 1 to 99, and an optional WRAP or NOWRAP argument: The extension of each dump file will be the character @ followed by a number between 1 and the value specified for nn. At each new dump, ITRAPPER adds 1 to the number of the most recent dump, and dumps to that file. If the number of the current dump is the same as the value nn. ITRAPPER wraps back to 1, unless NOWRAP is set, in which case ITRAPPER does not create a dump file.