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>Date: Tue, 13 Jun 2000 15:23:22 -0500 >From: "Bob Crothers" <bob@cstoneindy.com> > >Greg, > ... >First, I'd recommend you use the following declaration for your space >pointer: > >unsigned char *mySpacePtr; > ... This is interesting. Greg, "char" is normally already an unsigned char. If it was always true instead of just "normally" I'd say that Bob was wrong advising you to add "unsigned" to your declaration. But there is a possibility of having chars default to signed by coding #pragma chars(unsigned) before any other statements in the file (including directives, so don't worry about having an include file do this pragma). That pragma must exist because some implementations of C default char to signed, so for portable code, I guess you should indeed specify unsigned for bit-twiddling purposes. (Not sure how portable your API/user-space code needs to be though ...) Greg, if the user-space is known to contain a particular structure, say the return value from an API, you might as well just declare the pointer as a pointer to that structure: Qus_Generic_Header_0100_t *pGenericHeader; QUSPTRUS (myuserspace, &pGenericHeader, &errCode); Barbara Morris +--- | This is the C/400 Mailing List! | To submit a new message, send your mail to C400-L@midrange.com. | To subscribe to this list send email to C400-L-SUB@midrange.com. | To unsubscribe from this list send email to C400-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: bob@cstoneindy.com +---
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