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fixes for copy_term 

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1041 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
vsc 2004-04-19 17:06:51 +00:00
parent 572690acd8
commit ea52ce8b26
3 changed files with 7 additions and 34 deletions
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7
C/attvar.c
View File

@ -115,7 +115,6 @@ CopyAttVar(CELL *orig, CELL ***to_visit_ptr, CELL *res)
} else if (IsAtomicTerm(t)) {
newv->Atts[2*j+1] = t;
} else {
#ifdef RATIONAL_TREES
to_visit[0] = attv->Atts+2*j;
to_visit[1] = attv->Atts+2*j+1;
to_visit[2] = newv->Atts+2*j+1;
@ -123,12 +122,6 @@ CopyAttVar(CELL *orig, CELL ***to_visit_ptr, CELL *res)
/* fool the system into thinking we had a variable there */
attv->Atts[2*j+1] = AbsAppl(H);
to_visit += 4;
#else
to_visit[0] = attv->Atts+2*j;
to_visit[1] = attv->Atts+2*j+1;
to_visit[2] = newv->Atts+2*j+1;
to_visit += 3;
#endif
}
}
*to_visit_ptr = to_visit;

3
C/corout.c
View File

@ -315,7 +315,8 @@ copy_suspended_goals(sus_record *pt, CELL ***to_visit_ptr)
to_visit[0] = &(pt->SG)-1;
to_visit[1] = &(pt->SG);
to_visit[2] = &(gf->SG);
*to_visit_ptr = to_visit+3;
to_visit[3] = (CELL *)(*to_visit[0]);
*to_visit_ptr = to_visit+4;
#ifdef MULTI_ASSIGNMENT_VARIABLES
gf->NS = UpdateSVarList(gf);
#endif

31
C/utilpreds.c
View File

@ -59,8 +59,8 @@ copy_complex_term(register CELL *pt0, register CELL *pt0_end, CELL *ptf, CELL *H
{
CELL **to_visit0, **to_visit = (CELL **)Yap_PreAllocCodeSpace();
tr_fr_ptr TR0 = TR;
CELL *HB0 = HB;
tr_fr_ptr TR0 = TR;
#ifdef COROUTINING
CELL *dvars = NULL;
#endif
@ -185,41 +185,20 @@ copy_complex_term(register CELL *pt0, register CELL *pt0_end, CELL *ptf, CELL *H
if (IsAttachedTerm((CELL)ptd0)) {
/* if unbound, call the standard copy term routine */
CELL **bp[1];
tr_fr_ptr CurTR;
if (dvars == NULL) {
dvars = (CELL *)Yap_ReadTimedVar(DelayedVars);
}
if (ptd0 >= dvars) {
*ptf++ = (CELL) ptd0;
} else {
if (dvars == NULL) {
dvars = (CELL *)Yap_ReadTimedVar(DelayedVars);
}
bp[0] = to_visit;
CurTR = TR;
HB = HB0;
if (!attas[ExtFromCell(ptd0)].copy_term_op(ptd0, bp, ptf)) {
goto overflow;
}
to_visit = bp[0];
HB = HLow;
if (CurTR != TR) {
/* Problem here is that the attached routine might
* have changed the list of suspended goals and stored
* new entries in the trail. This should be quite
* rare, so for simplicity we just swap cells from
* bottom and top of Trail, not nice but not worth
* complicating everything else.
*/
CELL *pt1 = (CELL *)TR0;
CELL *pt2 = (CELL *)CurTR;
while (pt2 < (CELL *)TR) {
CELL o = *pt1;
pt1++;
pt2++;
pt1[-1] = pt2[-1];
pt2[-1] = o;
}
TR0 = (tr_fr_ptr)pt1;
}
ptf++;
Bind_Global(ptd0, ptf[-1]);
}