// within a cast expression.
bool VisitStmt(Stmt *S) {
CastExpr *C = dyn_cast<CastExpr>(S);
+ // Catch the castExpr inside cxxDefaultArgExpr.
+ if (auto *E = dyn_cast<CXXDefaultArgExpr>(S))
+ C = dyn_cast<CastExpr>(E->getExpr());
if (!C) {
FirstSubExpr = nullptr;
return true;
}
+
if (!FirstSubExpr)
FirstSubExpr = C->getSubExpr()->IgnoreParens();
+ // Ignore the expr if it is already a nullptr literal expr.
+ if (isa<CXXNullPtrLiteralExpr>(FirstSubExpr))
+ return true;
+
if (C->getCastKind() != CK_NullToPointer &&
C->getCastKind() != CK_NullToMemberPointer) {
return true;
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: use nullptr
// CHECK-FIXES: C<bool, F(nullptr)> c;
#undef F
+
+// Test default argument expression.
+struct D {
+ explicit D(void *t, int *c = NULL) {}
+ // CHECK-MESSAGES: :[[@LINE-1]]:32: warning: use nullptr
+ // CHECK-FIXES: explicit D(void *t, int *c = nullptr) {}
+};
+
+void test_default_argument() {
+ D(nullptr);
+}