Functions and CALL Routines |
Category: | External Files |
See: | FOPTNUM Function under Windows UNIX OpenVMS z/OS |
Syntax | |
Argument | |
Details | |
Comparisons | |
Examples | |
See Also |
Syntax |
FOPTNUM(file-id) |
is a numeric variable that specifies the identifier that was assigned when the file was opened, generally by the FOPEN function.
Details |
Operating Environment Information: The number, value, and type of information items that are available depend on the operating environment.
Comparisons |
Use FOPTNAME to determine the names of the items that are available for a particular operating environment.
Use FINFO to retrieve the value of a particular information item.
Examples |
This example opens the external file with the fileref MYFILE and determines the number of system-dependent file information items available:
%let fid=%sysfunc(fopen(myfile)); %let infonum=%sysfunc(foptnum(&fid));
See Also |
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See the Examples in the FOPTNAME Function. |
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