Commit 308880d2 authored by Dennis Jenkins's avatar Dennis Jenkins

pre-increment operator should return reference, not value.

parent 42802428
......@@ -18,9 +18,9 @@ struct FlatMapIteratorAdapter {
: it(_it)
{ }
FlatMapIteratorAdapter operator++() {
FlatMapIteratorAdapter& operator++() {
++it;
return FlatMapIteratorAdapter(it);
return *this;
}
const Value& operator*() {
......
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