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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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14
src/muz/transforms/dl_mk_karr_invariants.cpp
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@ -191,13 +191,13 @@ namespace datalog {
rule_set * mk_karr_invariants::operator()(rule_set const & source) {
if (!m_ctx.karr()) {
return 0;
return nullptr;
}
rule_set::iterator it = source.begin(), end = source.end();
for (; it != end; ++it) {
rule const& r = **it;
if (r.has_negation()) {
return 0;
return nullptr;
}
}
mk_loop_counter lc(m_ctx);
@ -209,7 +209,7 @@ namespace datalog {
get_invariants(*src_loop);
if (m.canceled()) {
return 0;
return nullptr;
}
// figure out whether to update same rules as used for saturation.
@ -248,7 +248,7 @@ namespace datalog {
func_decl* p = dit->m_key;
expr_ref fml = rctx.try_get_formula(p);
if (fml && !m.is_true(fml)) {
expr* inv = 0;
expr* inv = nullptr;
if (m_fun2inv.find(p, inv)) {
fml = m.mk_and(inv, fml);
}
@ -270,7 +270,7 @@ namespace datalog {
rule_set::decl2rules::iterator gend = src.end_grouped_rules();
for (; git != gend; ++git) {
func_decl* p = git->m_key;
expr* fml = 0;
expr* fml = nullptr;
if (m_fun2inv.find(p, fml)) {
kmc->add(p, fml);
}
@ -292,7 +292,7 @@ namespace datalog {
}
for (unsigned i = 0; i < utsz; ++i) {
func_decl* q = r.get_decl(i);
expr* fml = 0;
expr* fml = nullptr;
if (m_fun2inv.find(q, fml)) {
expr_safe_replace rep(m);
for (unsigned j = 0; j < q->get_arity(); ++j) {
@ -306,7 +306,7 @@ namespace datalog {
}
rule* new_rule = &r;
if (tail.size() != tsz) {
new_rule = rm.mk(r.get_head(), tail.size(), tail.c_ptr(), 0, r.name());
new_rule = rm.mk(r.get_head(), tail.size(), tail.c_ptr(), nullptr, r.name());
}
rules.add_rule(new_rule);
rm.mk_rule_rewrite_proof(r, *new_rule); // should be weakening rule.