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22.2.2. Calling Sequence
SFDT$–System Standard Format Date and Time
Calling programs need the following procedure declaration to call SFDT$:
PROCEDURE STANDARD_DATE_TIME(%SFDT_PKT_ADDR: SFDT_PACKET)
IMPORTED (‘external-name’);
The external-name may be one of two entry points to SFDT$.
SFDT$P This entry point uses the relocatable version of SFDT$.
SFDT$PG This entry point uses the common bank version of SFDT$.
The type definitions for SFDT_BUFFER and SFDT_PACKET, the initialization procedure
SFDT_INITIALIZE, and the procedure definition for STANDARD_DATE_TIME are available
in elements SFDT$D and SFDT$DG in the SYSLIB file SYS$LIB$*SYSLIB. Element
SFDT$D contains the definitions to call the relocatable version of SFDT$, and SFDT$DG
contains the definitions to call the common bank version of SFDT$.
These elements are obtained with the COPY statement as follows:
COPY(‘elt-name’);
where elt-name may be SFDT$D or SFDT$DG.
SFDT$ Calling Format
STANDARD_DATE_TIME(%pkt);
where pkt is the identifier of a data entity of type SFDT_PACKET.
Returns
If no error occurs, SFDT$ creates the ASCII date/time format string and returns it in the
buffer specified by the calling program.
SFDT$ returns the following variables to the calling program:
SFDT_CHAR_OFFSET
Position in word of the last nonspace character of the ASCII string (0, 1, 2, or 3).
SFDT_NUMBER_CHAR
The number of characters in the string.
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