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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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12
src/ast/rewriter/der.cpp
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@ -118,7 +118,7 @@ bool der::is_var_diseq(expr * e, unsigned num_decls, var * & v, expr_ref & t) {
void der::operator()(quantifier * q, expr_ref & r, proof_ref & pr) {
bool reduced = false;
pr = 0;
pr = nullptr;
r = q;
TRACE("der", tout << mk_pp(q, m_manager) << "\n";);
@ -149,14 +149,14 @@ void der::operator()(quantifier * q, expr_ref & r, proof_ref & pr) {
void der::reduce1(quantifier * q, expr_ref & r, proof_ref & pr) {
if (!is_forall(q)) {
pr = 0;
pr = nullptr;
r = q;
return;
}
expr * e = q->get_expr();
unsigned num_decls = q->get_num_decls();
var * v = 0;
var * v = nullptr;
expr_ref t(m_manager);
if (m_manager.is_or(e)) {
@ -211,7 +211,7 @@ void der::reduce1(quantifier * q, expr_ref & r, proof_ref & pr) {
r = q;
if (m_manager.proofs_enabled()) {
pr = r == q ? 0 : m_manager.mk_der(q, r);
pr = r == q ? nullptr : m_manager.mk_der(q, r);
}
}
@ -223,7 +223,7 @@ void der_sort_vars(ptr_vector<var> & vars, ptr_vector<expr> & definitions, unsig
for (unsigned i = 0; i < definitions.size(); i++) {
var * v = vars[i];
expr * t = definitions[i];
if (t == 0 || has_quantifiers(t) || occurs(v, t))
if (t == nullptr || has_quantifiers(t) || occurs(v, t))
definitions[i] = 0;
else
found = true; // found at least one candidate
@ -342,7 +342,7 @@ void der::get_elimination_order() {
void der::create_substitution(unsigned sz) {
m_subst_map.reset();
m_subst_map.resize(sz, 0);
m_subst_map.resize(sz, nullptr);
for(unsigned i = 0; i < m_order.size(); i++) {
expr_ref cur(m_map[m_order[i]], m_manager);