[PPL-devel] Re: Raising Prolog exceptions from C code (2nd attempt)

[Roberto Bagnara]

Joseph Benden wrote:
> Hello,
> 
> The Prolog exceptions that I am successfully raising from both C and C++ 
> code is based off of the Emit_Syntax_Error call.
> 
> Example:
> 
> Emit_Syntax_Error("SQL Error", 1, 1, "Some text that failed or another C 
> call returning a textual error message");

Hi Joseph,

thanks for your message.  Just to make another test (I have done a million
anyway) I have tried replacing

   Pl_Exec_Continuation(a_throw, 1, &t);

with

   Emit_Syntax_Error(...)

in my application (http://www.cs.unipr.it/ppl/) and I observe exactly
the same segmentation violations and illegal instructions.
May it be because Pl_Exec_Continuation is implemented by means
of setjmp/longjmp and I am doing something that is incompatible
with them?  What can it be?
Thanks again

      Roberto

-- 
Prof. Roberto Bagnara
Computer Science Group
Department of Mathematics, University of Parma, Italy
http://www.cs.unipr.it/~bagnara/
mailto:bagnara at cs.unipr.it