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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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6
src/ast/expr_substitution.h
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@ -43,7 +43,7 @@ public:
bool unsat_core_enabled() const { return m_cores_enabled; }
bool empty() const { return m_subst.empty(); }
void insert(expr * s, expr * def, proof * def_pr = 0, expr_dependency * def_dep = 0);
void insert(expr * s, expr * def, proof * def_pr = nullptr, expr_dependency * def_dep = nullptr);
void erase(expr * s);
bool find(expr * s, expr * & def, proof * & def_pr);
bool find(expr * s, expr * & def, proof * & def_pr, expr_dependency * & def_dep);
@ -63,7 +63,7 @@ public:
scoped_expr_substitution(expr_substitution& s): m_subst(s), m_trail(s.m()) {}
~scoped_expr_substitution() {}
void insert(expr * s, expr * def, proof * def_pr = 0, expr_dependency * def_dep = 0) {
void insert(expr * s, expr * def, proof * def_pr = nullptr, expr_dependency * def_dep = nullptr) {
if (!m_subst.contains(s)) {
m_subst.insert(s, def, def_pr, def_dep);
m_trail.push_back(s);
@ -82,7 +82,7 @@ public:
}
unsigned scope_level() const { return m_trail_lim.size(); }
bool empty() const { return m_subst.empty(); }
expr* find(expr * e) { proof* pr; expr* d = 0; if (find(e, d, pr)) return d; else return e; }
expr* find(expr * e) { proof* pr; expr* d = nullptr; if (find(e, d, pr)) return d; else return e; }
bool find(expr * s, expr * & def, proof * & def_pr) { return m_subst.find(s, def, def_pr); }
bool find(expr * s, expr * & def, proof * & def_pr, expr_dependency * & def_dep) { return m_subst.find(s, def, def_pr, def_dep); }
bool contains(expr * s) { return m_subst.contains(s); }