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<== Date ==> | <== Thread ==> |
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Subject: | RTN_SUCCESS macro |
From: | [email protected] (Nick Rees) |
Date: | Fri, 3 Feb 95 15:13:16 HST |
I am still getting to grips with Epics status values. I have been using the RTN_SUCCESS macro and today wanted to find out what it meant. I found the following in errMdef.h: #define RTN_SUCCESS(STATUS) ((STATUS && 1)==0) Does this mean what I think it means - i.e. !STATUS (or STATUS == 0) ? or should the && be a bitwise & ? or is it a C construct to do something more clever? (By opening my mouth I may be exposing myself as not being a C afficionado.) Nick