information about fopen mode mismatches?

C/C++ and Java for MVS & zOS.
Previous topicNext topic

Topic Author
peeterjoot
Registered Member
Posts: 15
Joined: Fri Mar 03, 2017 2:01 am

information about fopen mode mismatches?

Post by peeterjoot » Tue Apr 04, 2017 10:21 pm

C doesn't have anything but errno for fopen failures, but it also doesn't have all the complex mode string extensions that exist in mainframe C.

On the mainframe, if an fopen("dd:...", modestring) fails due to a fopen mode string mismatch relative to the JCL that cataloged and/or allocated the DDNAME/DSNAME in question, is there a way to get extended error information about the precise nature of that fopen mode mismatch?



User avatar

Anuj Dhawan
Founder
Posts: 2497
Joined: Sun Apr 21, 2013 7:40 pm
Location: Mumbai, India
Zodiac: Sagittarius

Re: information about fopen mode mismatches?

Post by Anuj Dhawan » Tue Apr 04, 2017 11:01 pm

I'm not a mainframe C expert, however are you using #include <errno.h> to trap the errors. It might help.


Thanks,
Anuj

Disclaimer: My comments on this website are my own and do not represent the opinions or suggestions of any other person or business entity, in any way.

Previous topicNext topic

Return to “C, C++ and Java for Mainframes.”