I don't see you allocating memory for myoutput anywhere. Perhaps you could declare myoutput as char[512] or something like that to begin with. Otherwise, in your myoutput == NULL branch of the IF statement, you need to allocate memory, rather than just doing strcpy.
Kelly --- David Ja <[EMAIL PROTECTED]> wrote: > Hi, > My name is David Ja, an undergraduate student at > university of > pennsylvania. I am attempting to start a minor > research project myself. I > been trying to adapted bison to my own purpose but > after a month of trying I > can't seem to figure out a way to make it work. All > I wanted to do was to > take advantage of bison's parser which generates the > DFA, which in turn, > allows me to step through the DFA in sequence > generating a sample string > that fits the grammar input. For example if the > grammar is the grammar for > an web address. My program will be able to generate > http://www.abc.org<http://www.abc.org>. > I have attached my "attempt" code with this email. > The problem I arrive at > is I don't seem to be able to compile it with bison > code. For some reason, > even if I leave it in the same folder as bison src, > I still arrive at a > deference to pointer error. I'm sorry if I made an > elementary mistake or > something stupid. Thank you for any help/suggestions > you can give me. It is > also possible I'm not taking advantage of bison data > structure the right > way. If so I am sorry if I wasted any of your time. > This is my first attempt > at understand the inner working of a program of this > magnitude. If I am not > being clear about something or if I email the wrong > place. I am extremely > sorry. Again thank you very much for any help you > can give me. > Best, > David _______________________________________________ Help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
