☜	Error Code M31 M[UMPS] by Example					☞

M31, controlmnemonic used for device without a mnemonicspace selected

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

Usage of the special device control functions (controlmnemonic) that are available through the Write /function syntax can only take place after a function-library has been selected in a Use command or in an Open command. If such a function reference occurs, while no library (mnemonicspace) is activated, this error will occur.

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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 29-Nov-2011, 22:30:57.

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