Thread View: gnu.utils.bug
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Started by Paul Fox
Thu, 01 Jun 1989 10:23
Bison bugs ?
Author: Paul Fox
Date: Thu, 01 Jun 1989 10:23
Date: Thu, 01 Jun 1989 10:23
41 lines
2311 bytes
2311 bytes
Hello world...I seemed to be having a problem with bison. Not quite sure who I should be posting this to - I'd rather not necessarily bother RMS and friends because I know them to be busy, but I have a problem with bison which is indicative of a bug. Bison is pretty 'hairy' :-) :-) so I'd prefer not to spend my time trying to crack this. The thing is this. I have a yacc grammar which up until now I've been using bison to generate the code for, but things started going wrong - the C code would mis-parse my input and think it was going into the wrong state. Its obviously pretty difficult to decide whats going on from a debuggers point of view, so I decided to try it with yacc and it works! So, either there is a bug in bison with regards to compatability with yacc or I've added something which has caused some internal table to overflow or corrupt something. As far as I am aware this is the latest bison (version 1.01 gotten from osu-cis about a week or two ago). This is on a Sun 3/260 running SunOS 4.0.1. I've tried compiling with gcc (1.35) and with /bin/cc but that makes no difference. Also, I tried this same software on my 386/ix V.3.2 box with cc + gcc + bison and gotten very bizarre results -- the y.tab.h file generated has tokens starting at < 255 instead of the usual 258. Has anyone else experienced problems with bison, or am I missing some option/switch that I need to set. I've read the bison.texinfo manual but theres nothing in there to tell me that I need to increase the size of any tables, etc. Many thanks in advance. ===================== Reuters Ltd PLC, Tel: +44 628 891313 x. 212 Westthorpe House, UUCP: fox%marlow.uucp@idec.stc.co.uk Little Marlow, Bucks, England SL7 3RQ -- ===================== Reuters Ltd PLC, Tel: +44 628 891313 x. 212 Westthorpe House, UUCP: fox%marlow.uucp@idec.stc.co.uk Little Marlow, Bucks, England SL7 3RQ
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