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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/smt/asserted_formulas.cpp
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@ -90,7 +90,7 @@ void asserted_formulas::push_assertion(expr * e, proof * pr, vector<justified_ex
if (inconsistent()) {
return;
}
expr* e1 = 0;
expr* e1 = nullptr;
if (m.is_false(e)) {
result.push_back(justified_expr(m, e, pr));
m_inconsistent = true;
@ -101,14 +101,14 @@ void asserted_formulas::push_assertion(expr * e, proof * pr, vector<justified_ex
else if (m.is_and(e)) {
for (unsigned i = 0; i < to_app(e)->get_num_args(); ++i) {
expr* arg = to_app(e)->get_arg(i);
proof_ref _pr(m.proofs_enabled() ? m.mk_and_elim(pr, i) : 0, m);
proof_ref _pr(m.proofs_enabled() ? m.mk_and_elim(pr, i) : nullptr, m);
push_assertion(arg, _pr, result);
}
}
else if (m.is_not(e, e1) && m.is_or(e1)) {
for (unsigned i = 0; i < to_app(e1)->get_num_args(); ++i) {
expr* arg = to_app(e1)->get_arg(i);
proof_ref _pr(m.proofs_enabled() ? m.mk_not_or_elim(pr, i) : 0, m);
proof_ref _pr(m.proofs_enabled() ? m.mk_not_or_elim(pr, i) : nullptr, m);
expr_ref narg(mk_not(m, arg), m);
push_assertion(narg, _pr, result);
}
@ -376,7 +376,7 @@ void asserted_formulas::nnf_cnf() {
unsigned sz2 = push_todo.size();
for (unsigned k = 0; k < sz2; k++) {
expr * n = push_todo.get(k);
pr = 0;
pr = nullptr;
m_rewriter(n, r1, pr1);
CASSERT("well_sorted",is_well_sorted(m, r1));
if (canceled()) {
@ -598,15 +598,15 @@ void asserted_formulas::compute_depth(expr* e) {
proof * asserted_formulas::get_inconsistency_proof() const {
if (!inconsistent())
return 0;
return nullptr;
if (!m.proofs_enabled())
return 0;
return nullptr;
for (justified_expr const& j : m_formulas) {
if (m.is_false(j.get_fml()))
return j.get_proof();
}
UNREACHABLE();
return 0;
return nullptr;
}
void asserted_formulas::refine_inj_axiom_fn::simplify(justified_expr const& j, expr_ref& n, proof_ref& p) {