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Use nullptr.

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This commit is contained in:
Bruce Mitchener 2018-02-12 14:05:55 +07:00
parent f01328c65f
commit 76eb7b9ede
625 changed files with 4639 additions and 4639 deletions
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20
src/muz/transforms/dl_mk_rule_inliner.cpp
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@ -549,16 +549,16 @@ namespace datalog {
const rule_vector& pred_rules = rules.get_predicate_rules(pred);
rule * inlining_candidate = 0;
rule * inlining_candidate = nullptr;
unsigned rule_cnt = pred_rules.size();
if (rule_cnt == 0) {
inlining_candidate = 0;
inlining_candidate = nullptr;
}
else if (rule_cnt == 1) {
inlining_candidate = pred_rules[0];
}
else {
inlining_candidate = 0;
inlining_candidate = nullptr;
for (unsigned ri = 0; ri < rule_cnt; ++ri) {
rule * pred_rule = pred_rules[ri];
@ -566,7 +566,7 @@ namespace datalog {
//we skip rules which don't unify with the tail atom
continue;
}
if (inlining_candidate != 0) {
if (inlining_candidate != nullptr) {
// We have two rules that can be inlined into the current
// tail predicate. In this situation we don't do inlinning
// on this tail atom, as we don't want the overall number
@ -576,10 +576,10 @@ namespace datalog {
inlining_candidate = pred_rule;
}
}
if (inlining_candidate == 0) {
if (inlining_candidate == nullptr) {
// nothing unifies with the tail atom, therefore the rule is unsatisfiable
// (we can say this because relation pred doesn't have any ground facts either)
res = 0;
res = nullptr;
datalog::del_rule(m_mc, *r, false);
return true;
}
@ -591,7 +591,7 @@ namespace datalog {
}
if (!try_to_inline_rule(*r, *inlining_candidate, ti, res)) {
datalog::del_rule(m_mc, *r, false);
res = 0;
res = nullptr;
}
return true;
@ -852,13 +852,13 @@ namespace datalog {
ref<horn_subsume_model_converter> hsmc;
if (source.get_num_rules() == 0) {
return 0;
return nullptr;
}
rule_set::iterator end = source.end();
for (rule_set::iterator it = source.begin(); it != end; ++ it) {
if (has_quantifier(**it)) {
return 0;
return nullptr;
}
}
@ -893,7 +893,7 @@ namespace datalog {
}
if (!something_done) {
res = 0;
res = nullptr;
}
else {
m_context.add_model_converter(hsmc.get());