SetGlobal (System subroutine): Difference between revisions

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{{Template:System:SetGlobal subtitle}}
{{Template:System:SetGlobal subtitle}}
The <var>SetGlobal</var> shared subroutine sets a <var>[[System_class|System]]</var> global.
The <var>SetGlobal</var> shared subroutine sets a [[System class#System and subsystem globals and strings|system-wide global]].


==Syntax==
==Syntax==

Revision as of 19:28, 27 March 2011

Set a system-wide global (System class)

The SetGlobal shared subroutine sets a system-wide global.

Syntax

%(System):SetGlobal( name, value)

Syntax terms

%(System) The class name in parentheses denotes a shared method. SetGlobal can also be invoked via a System object variable, which may be null.
name A string that identifies the global to be set.
value A string that identifies the new value for the global.

Usage notes

  • All errors result in request cancellation.
  • It is not an error to set a global that is not set.
  • Like $Setg_Sys, the SetGlobal method momentarily turns off multi-processing, so should not be used heavily in an MP/204 environment. SetString does not suffer this limitation and should be used in these situations.

Examples

  1. The following statement sets the system global called CHOLERIC:

    %(system):setGlobal('CHOLERIC', 'ANGRY')

See also

  • The setGlobal method, in the System class, performs a function identical to the $setg_sys function. That is, the following two statements are identical:

    %(system):setGlobal('PHLEGMATIC', 'STOLID') %setg_sys('PHLEGMATIC', 'STOLID')

  • For more information about system globals, see “System globals and strings”.