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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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32
src/ast/macros/macro_util.cpp
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@ -33,8 +33,8 @@ macro_util::macro_util(ast_manager & m):
m_arith(m),
m_arith_rw(m),
m_bv_rw(m),
m_forbidden_set(0),
m_curr_clause(0) {
m_forbidden_set(nullptr),
m_curr_clause(nullptr) {
}
@ -256,7 +256,7 @@ bool macro_util::is_arith_macro(expr * n, unsigned num_decls, app_ref & head, ex
inv = false;
ptr_buffer<expr> args;
expr * h = 0;
expr * h = nullptr;
unsigned lhs_num_args;
expr * const * lhs_args;
if (is_add(lhs)) {
@ -270,13 +270,13 @@ bool macro_util::is_arith_macro(expr * n, unsigned num_decls, app_ref & head, ex
for (unsigned i = 0; i < lhs_num_args; i++) {
expr * arg = lhs_args[i];
expr * neg_arg;
if (h == 0 &&
if (h == nullptr &&
is_macro_head(arg, num_decls) &&
!is_forbidden(to_app(arg)->get_decl()) &&
!poly_contains_head(lhs, to_app(arg)->get_decl(), arg)) {
h = arg;
}
else if (h == 0 && m_arith_rw.is_times_minus_one(arg, neg_arg) &&
else if (h == nullptr && m_arith_rw.is_times_minus_one(arg, neg_arg) &&
is_macro_head(neg_arg, num_decls) &&
!is_forbidden(to_app(neg_arg)->get_decl()) &&
!poly_contains_head(lhs, to_app(neg_arg)->get_decl(), arg)) {
@ -287,7 +287,7 @@ bool macro_util::is_arith_macro(expr * n, unsigned num_decls, app_ref & head, ex
args.push_back(arg);
}
}
if (h == 0)
if (h == nullptr)
return false;
head = to_app(h);
expr_ref tmp(m_manager);
@ -666,7 +666,7 @@ void macro_util::insert_macro(app * head, unsigned num_decls, expr * def, expr *
expr_ref norm_def(m_manager);
expr_ref norm_cond(m_manager);
normalize_expr(head, num_decls, def, norm_def);
if (cond != 0)
if (cond != nullptr)
normalize_expr(head, num_decls, cond, norm_cond);
else if (!hint)
norm_cond = m_manager.mk_true();
@ -682,7 +682,7 @@ void macro_util::insert_quasi_macro(app * head, unsigned num_decls, expr * def,
expr_ref new_cond(m_manager);
if (!hint) {
quasi_macro_head_to_macro_head(head, num_decls, new_head, extra_cond);
if (cond == 0)
if (cond == nullptr)
new_cond = extra_cond;
else
bool_rewriter(m_manager).mk_and(cond, extra_cond, new_cond);
@ -701,7 +701,7 @@ void macro_util::insert_quasi_macro(app * head, unsigned num_decls, expr * def,
}
bool macro_util::rest_contains_decl(func_decl * f, expr * except_lit) {
if (m_curr_clause == 0)
if (m_curr_clause == nullptr)
return false;
SASSERT(is_clause(m_manager, m_curr_clause));
unsigned num_lits = get_clause_num_literals(m_manager, m_curr_clause);
@ -714,7 +714,7 @@ bool macro_util::rest_contains_decl(func_decl * f, expr * except_lit) {
}
void macro_util::get_rest_clause_as_cond(expr * except_lit, expr_ref & extra_cond) {
if (m_curr_clause == 0)
if (m_curr_clause == nullptr)
return;
SASSERT(is_clause(m_manager, m_curr_clause));
expr_ref_buffer neg_other_lits(m_manager);
@ -795,7 +795,7 @@ void macro_util::collect_arith_macro_candidates(expr * lhs, expr * rhs, expr * a
mk_sub(rhs, rest, def);
// If is_poly_hint, rhs may contain variables that do not occur in to_app(arg).
// So, we should re-check.
if (!_is_poly_hint || is_poly_hint(def, to_app(arg), 0))
if (!_is_poly_hint || is_poly_hint(def, to_app(arg), nullptr))
add_arith_macro_candidate(to_app(arg), num_decls, def, atom, is_ineq, _is_poly_hint, r);
}
else if (is_times_minus_one(arg, neg_arg) && is_app(neg_arg)) {
@ -816,7 +816,7 @@ void macro_util::collect_arith_macro_candidates(expr * lhs, expr * rhs, expr * a
mk_sub(rest, rhs, def);
// If is_poly_hint, rhs may contain variables that do not occur in to_app(neg_arg).
// So, we should re-check.
if (!_is_poly_hint || is_poly_hint(def, to_app(neg_arg), 0))
if (!_is_poly_hint || is_poly_hint(def, to_app(neg_arg), nullptr))
add_arith_macro_candidate(to_app(neg_arg), num_decls, def, atom, is_ineq, _is_poly_hint, r);
}
}
@ -885,7 +885,7 @@ void macro_util::collect_macro_candidates_core(expr * atom, unsigned num_decls,
insert_quasi_macro(to_app(lhs), num_decls, rhs, cond, false, true, false, r);
}
else if (is_hint_atom(lhs, rhs)) {
insert_quasi_macro(to_app(lhs), num_decls, rhs, 0, false, true, true, r);
insert_quasi_macro(to_app(lhs), num_decls, rhs, nullptr, false, true, true, r);
}
if (is_quasi_macro_head(rhs, num_decls) &&
@ -897,7 +897,7 @@ void macro_util::collect_macro_candidates_core(expr * atom, unsigned num_decls,
insert_quasi_macro(to_app(rhs), num_decls, lhs, cond, false, true, false, r);
}
else if (is_hint_atom(rhs, lhs)) {
insert_quasi_macro(to_app(rhs), num_decls, lhs, 0, false, true, true, r);
insert_quasi_macro(to_app(rhs), num_decls, lhs, nullptr, false, true, true, r);
}
}
@ -905,7 +905,7 @@ void macro_util::collect_macro_candidates_core(expr * atom, unsigned num_decls,
}
void macro_util::collect_macro_candidates(expr * atom, unsigned num_decls, macro_candidates & r) {
m_curr_clause = 0;
m_curr_clause = nullptr;
r.reset();
collect_macro_candidates_core(atom, num_decls, r);
}
@ -922,7 +922,7 @@ void macro_util::collect_macro_candidates(quantifier * q, macro_candidates & r)
unsigned num_lits = get_clause_num_literals(m_manager, n);
for (unsigned i = 0; i < num_lits; i++)
collect_macro_candidates_core(get_clause_literal(m_manager, n, i), num_decls, r);
m_curr_clause = 0;
m_curr_clause = nullptr;
}
else {
collect_macro_candidates_core(n, num_decls, r);