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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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22
src/ast/rewriter/elim_bounds.cpp
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@ -44,15 +44,15 @@ elim_bounds_cfg::elim_bounds_cfg(ast_manager & m):
It also detects >=, and the atom can be negated.
*/
bool elim_bounds_cfg::is_bound(expr * n, var * & lower, var * & upper) {
upper = 0;
lower = 0;
upper = nullptr;
lower = nullptr;
bool neg = false;
if (m.is_not(n)) {
n = to_app(n)->get_arg(0);
neg = true;
}
expr* l = 0, *r = 0;
expr* l = nullptr, *r = nullptr;
bool le = false;
if (m_util.is_le(n, l, r) && m_util.is_numeral(r)) {
n = l;
@ -139,14 +139,14 @@ bool elim_bounds_cfg::reduce_quantifier(quantifier * q,
ptr_buffer<var> candidates;
#define ADD_CANDIDATE(V) if (!lowers.contains(V) && !uppers.contains(V)) { candidate_set.insert(V); candidates.push_back(V); }
for (expr * a : atoms) {
var * lower = 0;
var * upper = 0;
var * lower = nullptr;
var * upper = nullptr;
if (is_bound(a, lower, upper)) {
if (lower != 0 && !used_vars.contains(lower->get_idx()) && lower->get_idx() < num_vars) {
if (lower != nullptr && !used_vars.contains(lower->get_idx()) && lower->get_idx() < num_vars) {
ADD_CANDIDATE(lower);
lowers.insert(lower);
}
if (upper != 0 && !used_vars.contains(upper->get_idx()) && upper->get_idx() < num_vars) {
if (upper != nullptr && !used_vars.contains(upper->get_idx()) && upper->get_idx() < num_vars) {
ADD_CANDIDATE(upper);
uppers.insert(upper);
}
@ -167,9 +167,9 @@ bool elim_bounds_cfg::reduce_quantifier(quantifier * q,
unsigned j = 0;
for (unsigned i = 0; i < atoms.size(); ++i) {
expr * a = atoms[i];
var * lower = 0;
var * upper = 0;
if (is_bound(a, lower, upper) && ((lower != 0 && candidate_set.contains(lower)) || (upper != 0 && candidate_set.contains(upper))))
var * lower = nullptr;
var * upper = nullptr;
if (is_bound(a, lower, upper) && ((lower != nullptr && candidate_set.contains(lower)) || (upper != nullptr && candidate_set.contains(upper))))
continue;
atoms[j] = a;
j++;
@ -178,7 +178,7 @@ bool elim_bounds_cfg::reduce_quantifier(quantifier * q,
return false;
}
atoms.resize(j);
expr * new_body = 0;
expr * new_body = nullptr;
switch (atoms.size()) {
case 0:
result = m.mk_false();