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YapTab: load_answer_trie()

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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@2230 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
ricroc
2008-05-05 17:09:37 +00:00
parent d7d47326a5
commit 508c48d385
1 changed files with 10 additions and 9 deletions
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19
OPTYap/tab.tries.c
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@@ -5,7 +5,7 @@
Copyright: R. Rocha and NCC - University of Porto, Portugal
File: tab.tries.C
version: $Id: tab.tries.c,v 1.22 2007-04-26 19:02:46 ricroc Exp $
version: $Id: tab.tries.c,v 1.23 2008-05-05 17:09:37 ricroc Exp $
**********************************************************************/
@@ -863,7 +863,7 @@ ans_node_ptr answer_search(sg_fr_ptr sg_fr, CELL *subs_ptr) {
void load_answer_trie(ans_node_ptr ans_node, CELL *subs_ptr) {
CELL *stack_vars_base, *stack_vars, *stack_terms_base, *stack_terms;
int subs_arity, i, n_vars = MAX_TABLE_VARS;
int subs_arity, i, n_vars = -1;
Term t;
if ((subs_arity = *subs_ptr) == 0)
@@ -881,14 +881,15 @@ void load_answer_trie(ans_node_ptr ans_node, CELL *subs_ptr) {
do {
if (IsVarTerm(t)) {
int var_index = VarIndexOfTableTerm(t);
if (n_vars == MAX_TABLE_VARS) {
stack_vars += var_index;
STACK_CHECK_EXPAND(stack_terms, stack_vars, stack_terms_base);
}
if (var_index < n_vars) {
if(var_index > n_vars) {
for (i = var_index; i > n_vars; i--)
stack_vars_base[i] = NULL;
n_vars = var_index;
stack_vars_base[var_index] = MkVarTerm();
}
stack_vars = stack_terms_base + n_vars;
STACK_CHECK_EXPAND(stack_terms, stack_vars, stack_terms_base);
}
if (stack_vars_base[var_index] == NULL)
stack_vars_base[var_index] = MkVarTerm();
STACK_PUSH_UP(stack_vars_base[var_index], stack_terms);
STACK_CHECK_EXPAND(stack_terms, stack_vars, stack_terms_base);
} else if (IsAtomOrIntTerm(t)) {