Re: flex question

[W. L. Estes]

> I got your name as the current flex maintenance person from Vern Paxson.
> 
> I'm using flex 2.5.4 on Linux system for a relatively large compiler system
> called Jeda (See www.jeda.org). And I'm getting the following error on
> one of the standalone tests. 
> 
>   fatal flex scanner internal error--end of buffer missed
> 
> At the error point, yy_c_buf_p is off by one to 
> &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] value. 
> Here's the gdb print.
> 
>   (gdb) p yy_c_buf_p
>   $1 = 0x80ee7b2 ""
>   (gdb) p yy_n_chars
>   $2 = 8192
>   (gdb) p &yy_current_buffer->yy_ch_buf[yy_n_chars + 1]
>   $3 = 0x80ee7b1 ""
>   (gdb) 
> 
> This problem happens only on one test case, and other 75 tests passes OK.
> gcc version I'm using on the Linux system (Red Hat 7.1) is egcs-2.91.66. 
> The same input works fine if I use 'lex' on a Sun Solaris machine.
> 
> It would be great if you can guide me on how to solve this or 
> how to find a workaround on this. 

Could you provide some sample input which exhibits the bug you
describe?

Thanks,

--Will