Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mcnc!unccvax!cs00chs
From: cs00chs@unccvax.UUCP (charles spell)
Newsgroups: comp.databases
Subject: CData
Keywords: Cheap relational
Message-ID: <1581@unccvax.UUCP>
Date: 4 Aug 89 01:03:24 GMT
Organization: Univ. of NC at Charlotte, Charlotte, NC
Lines: 20


I have ported Cdata to UNIX. There was only a problem with the way that RPTRs
were referenced. On the Pyramid 9815 there was a bus error
whenever a RPTR variable was referenced on a non-word boundary, i.e., 

RPTR ad;
char *a;
ad = *((RPTR *) a + bheader[trx].keylength));

would cause a bus error if the right hand side was not a word-aligned pointer.

Solution. change all occurances of :
<RPTR var> = <address> TO mem_mov(<address>, &<RPTR var>, sizeof(RPTR))

the above expression would be changed to:
mem_mov(a + bheader[trx].keylength, &ad, sizeof(RPTR));

The rest of the port was simple.

---XXX