Re: Error Number to Symbol

On 3/18/2025 1:58 AM, Lawrence D'Oliveiro wrote:

On Tue, 18 Mar 2025 16:24:46 +1100, Michael Brown wrote:

Working in C, how do you return the RMS$_CODE symbol for any given error
number as returned from any operation?

 The $GETMSG system service comes to mind. I see there is a library routine
LIB$SYS_GETMSG, not sure what that does that the system service call does
not.

Classic LIB$ SYS$ difference in API style:
                                   SYS$                LIB$
optional arguments         require placeholder   can be omitted
readonly integer argument       by value          by reference
string arguments            fixed length only      dynamic ok
Arne