[Ur] Bug Report

[Adam Chlipala]

James Parker wrote:
> I believe I have found a bug. Here is the error message:
>
> $ urweb umdtalks -debug
> gcc  -pthread -Wimplicit -Werror -Wno-unused-value -I /usr/local/include/urweb  -c /tmp/webapp.c -o /tmp/webapp.o -g
> cc1: warnings being treated as errors
> /tmp/webapp.c: In function ‘uw_handle’:
> /tmp/webapp.c:2187: error: initialization from incompatible pointer type
>
> The code is available at:
>
> https://github.com/jprider63/UMDTalks
>
> The errors seem to go away if I change the first parameter from inputError to (). Relevant lines are umdtalks.ur:312,318,343.
>    

You're right; it was a compiler bug.  I've fixed it now.  Thanks for the 
report!

A few bits of advice, based on looking through your code:

I see your Makefile has an extra 'mv' from $(EXE).exe to $(EXE).  You 
can output to the latter file in the first place, using the 'exe' .urp 
directive.

All Ur/Web applications have OpenSSL linked in, so you might consider 
using OpenSSL crypto functions in place of mhash's.  Examples of using 
such functions are in the openid library.