rhutchin@Bonnie.ICS.UCI.EDU (02/19/91)
Well, more like "Bug in THINK C 4.02 update..." Here's something that is compiled into "error-free" object code in THINK C 4.0: NumToString((long) BuffCopy, tempStr); where: char *BuffCopy char *tempStr; /* sorry, forget the ";" above */ This works great in 4.0, but in the 4.02 update, it doesn't; it generates a bus error, that I catch in MacsBug... Sorry I can't give more information; I'm kindof a novice C programmer and MacsBug user. Anyone else had this problem. Does Symantec know about it? Richard B. Hutchings Dept of Info and Comp Sci UC Irvine
siegel@endor.uucp (Rich Siegel) (02/19/91)
In article <9102181103.aa10735@Bonnie.ics.uci.edu> rhutchin@Bonnie.ICS.UCI.EDU writes: >Well, more like "Bug in THINK C 4.02 update..." > >Here's something that is compiled into "error-free" object code in THINK C 4.0: > > NumToString((long) BuffCopy, tempStr); > >where: > char *BuffCopy > char *tempStr; /* sorry, forget the ";" above */ Unless "tempStr" is initialized to point at real storage, the NumToString call will write the result out into random memory, which can cause all sorts of unpredictable behavior, bus errors being among the symptoms. Try: char *buffCopy; Str255 tempStr; NumToString(buffCopy, tempStr); R. Rich Siegel Symantec Languages Group Internet: siegel@endor.harvard.edu "I was just trying to be subtle. That's my job, isn't it?"
oster@well.sf.ca.us (David Phillip Oster) (02/20/91)
In article <9102181103.aa10735@Bonnie.ics.uci.edu> rhutchin@Bonnie.ICS.UCI.EDU writes: >Here's something that is compiled into "error-free" object code in THINK C 4.0: > NumToString((long) BuffCopy, tempStr); >where: > char *BuffCopy; > char *tempStr; you know that the result has to go into a place, i.e.,: char *buffCopy; /* local variables initially contain garbage */ char *tempStr; char strBuf[100]; tempStr = strBuf; /* make tempStr point at a real place */ NumToString((long) buffCopy, tempStr); -- -- David Phillip Oster - At least the government doesn't make death worse. -- oster@well.sf.ca.us = {backbone}!well!oster