Re: AW: Segmentation Fault in yyparse() method

[Tim Van Holder]

Jonas Stahl wrote:
> In the version with segmentation fault (gcc 4.1.2):
> 
> 33117     if (yychar == YYEMPTY)
> (gdb) 
> 33120         yychar = YYLEX;
> (gdb) 
> 
> Program received signal SIGSEGV, Segmentation fault.
> yyparse () at fullParser.tab.c:33120
> 33120         yychar = YYLEX;
> 
> 
> I don't get why it doesn't get to the breakpoint. Are there any
> instructions, that are performed, that the debugger doesn't show? 

Weird crashes like that usually point to memory corruption, which in
this case is such that there is a difference between compilers (possibly
due to different optimization etc).

Try running the application under valgrind or some other memory debugger.
If possible also try slightly different releases of gcc (4.1.1 or 4.2);
there's an outside chance that it's a bug in gcc.