☜	Error Code M24 M[UMPS] by Example					☞

M24, Change to collation algorithm while subscripted global variables defined

Introduced in the 1995 ANSI M[UMPS] language standard.

The structured system variable ^$Global contains information about global variables (allocation, protection, access control, etcetera). Certain information about global variables can only be entered into these structured variables before the global variables that they describe are actually created. When creating the subtree in question, the collation algorithm specified in the structured system variable will be applied, and it may not generally be possible to undo this without completely re-creating the global variable in question.

The 1995 ANSI M[UMPS] language standard allows for a specification of a collation algorithm at the ‘top level’ of a global variable only.

An attempt to define or delete information related to the collation algorithm of a subtree in a global variable in this structured system variable while that subtree exists will cause this error to occur.

Copyright © Standard Documents; 1977-2024 MUMPS Development Committee;
Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.

The information in this page is NOT authoritative and subject to be modified at any moment.
Please consult the appropriate (draft) language standard for an authoritative definition.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 16-Nov-2023, 14:43:18.

For comments, contact Ed de Moel (demoel@jacquardsystems.com)