Chapter 8. Intrinsic Special Variables

Revision History
Revision V6.1-000 28 August 2014
Revision V6.0-003 24 February 2014
Revision V6.0-001 21 March 2013

In “$ZCOmpile”, added a point about $ZCOMPILE returning a status of 1 after any error in compilation.

Revision V5.5-000/2 31 October 2012 Added the descriptions of “$ZALlocstor”, “$ZREalstor”, and “$ZUSedstor”.
Revision V5.5-000/1 05 October 2012 Improved the description of “$ZTrap”, added an example of “$ZCMdline”, and added Linux, Solaris, and z/OS examples in “Create a shared library from object (.o) files.
Revision V5.5-000 15 June 2012 Added the description of “$ZONLNrlbk”.
Revision V5.4-002B 26 December 2011 Conversion to documentation revision history reflecting GT.M releases with revision history for each chapter.

Table of Contents

$Device
$ECode
$EStack
$ETrap
$Horolog
$IO
$Job
$Key
$Principal
$Quit
$Reference
$STack
$Storage
$SYstem
$Test
$TLevel
$TRestart
$X
$Y
$ZA
$ZALlocstor
$ZB
$ZCHset
$ZCMdline
$ZCOmpile
$ZCstatus
$ZCLose
$ZDAteform
$ZDirectory
$ZEDit
$ZEOf
$ZError
$ZGbldir
$ZINTerrupt
Interrupt Handling
$ZINInterrupt
$ZIO
$ZJob
$ZKey
$ZLevel
$ZMAXTPTIme
$ZMOde
$ZONLNrlbk
$ZPATNumeric
$ZPOSition
$ZPROMpt
$ZREalstor
$ZROutines
Establishing the Value from $gtmroutines
Setting a Value for $ZROutines
$ZROutines Examples
$ZROutines Search Types
$ZROutines Search Examples
Shared Library File Specification in $ZROUTINES
$ZSOurce
$ZStatus
$ZSTep
$ZSYstem
$ZTExit
$ZTrap
$ZUSedstor
$ZVersion
$ZYERror
Triggers ISVs
$ZTDAta
$ZTLevel
$ZTNAME
$ZTOLdval
$ZTRIggerop
$ZTSlate
$ZTUPdate
$ZTVAlue
$ZTWOrmhole

This chapter describes the M Intrinsic Special Variables implemented in GT.M. All entries starting with the letter Z are GT.M additions to the ANSI standard Intrinsic Special Variables. None of the Intrinsic Special Variables are case sensitive.

M Intrinsic Special Variables start with a single dollar sign ($). GT.M provides such variables for program examination. In some cases, the Intrinsic Special Variables may be set to modify the corresponding part of the environment.

[Note] Note

None of the Intrinsic Special Variables can be KILLed. SETting or NEWing is generally not allowed, but is specifically noted in the descriptions of those that do.