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Re: How to get the return value from gprolog in C?


From: Sean Charles
Subject: Re: How to get the return value from gprolog in C?
Date: Sun, 24 Nov 2013 10:12:59 +0000

Forgot to add… the code should probably be something like this (not tested) if 
you wanted to ask “anc(bob,john)”…

      Pl_Query_Begin(PL_TRUE);
      arg[0] = Pl_Mk_String(“bob");
      arg[1] = Pl_Mk_String(“john");
      res = Pl_Query_Call(func, 2, arg);

and then res will be NULL or NOT-NULL I guess to indicate true / false.




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