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Safety: added assert.

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This commit is contained in:
Cas Cremers 2018-12-24 14:10:30 +01:00
parent 98a6ed5873
commit d81a138040
1 changed files with 2 additions and 0 deletions
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2
src/mgu.c
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@ -19,6 +19,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <assert.h>
#include "term.h" #include "term.h"
#include "termlist.h" #include "termlist.h"
#include "mgu.h" #include "mgu.h"
@ -140,6 +141,7 @@ unify_callback_wrapper (Termlist tl, struct state_mgu_tmp *ptr_tmpstate)
{ {
// now the keys are unified (subst in this tl) // now the keys are unified (subst in this tl)
// and we try the inner terms // and we try the inner terms
assert (ptr_tmpstate != NULL);
return unify (ptr_tmpstate->unifyt1, ptr_tmpstate->unifyt2, tl, return unify (ptr_tmpstate->unifyt1, ptr_tmpstate->unifyt2, tl,
ptr_tmpstate->oldcallback, ptr_tmpstate->oldstate); ptr_tmpstate->oldcallback, ptr_tmpstate->oldstate);
} }