File handling Mumps

[Prabhjot Singh]

Hi All,

I need a simple example (with code) of Read and Write operations on a text file, handling eof exception. Can anyone provide me the same ?

Thanks

[Andrew Makinson]

Yes I can do this - let me get a code example to you. 

Sent from my iPhone

On 27 Apr 2020, at 08:53, Prabhjot Singh <prabh...@gmail.com> wrote:



Hi All,

I need a simple example (with code) of Read and Write operations on a text file, handling eof exception. Can anyone provide me the same ?

Thanks

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IRIS, Caché, Ensemble
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[lverhulst]

I use the following a lot in the Legacy Cache code that I write to read in files.

 S FILEIN=<directory and filename>

 O FILEIN:"RS"

 ;$ZUTIL(68,40,1) eliminates the <ENDOFFILE> error for sequential files for the current process.
 ;Test $ZEOF equal to -1 for EOF. 

 S X=$ZUTIL(68,40,1)
 F  U FILEIN R REC Q:$ZEOF=-1  D <something>

 C FILEIN

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L. Verhulst