&SYSLIB_VOLUME System Variable Symbol
Use &SYSLIB_VOLUME in a macro definition to obtain the volume
identifier of the volume containing the data set from which the assembler
read the macro definition statements. If the macro definition is a
source macro definition, &SYSLIB_VOLUME is assigned the same value as
&SYSIN_VOLUME.
The local-scope system variable symbol &SYSLIB_VOLUME is assigned a
read-only value each time a macro definition is called.
If the assembler runs on the CMS component of the
VM
operating system, and the source module is being read from a Shared File
System CMS file, &SYSLIB_VOLUME is assigned the value
** SFS.
Notes:
- If the LIBRARY user exit provides the data set information
then the value in &SYSLIB_VOLUME is the value extracted from the
Exit-Specific Information block described in
the section
"Exit-Specific Information Block" in the HLASM Programmer's Guide.
- The value of the type attribute of &SYSLIB_VOLUME
(T'&SYSLIB_VOLUME) is U, unless &SYSLIB_VOLUME is
assigned a null
character string, in which case the value of the type attribute is O.
- The value of the count attribute of &SYSLIB_VOLUME
(K'&SYSLIB_VOLUME) is equal to
the
number of characters assigned
as a value to &SYSLIB_VOLUME. If &SYSLIB_VOLUME is assigned a null
character string, the value of the count attribute is 0.
The maximum length of this system variable symbol is 6.
- Throughout the use of a macro definition, the value of &SYSLIB_VOLUME
is considered a constant.
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