1 // RUN: %clang_cc1 -std=c++2a -verify %s
2 
3 void no_capture() {
4   auto x = [] {};
5   decltype(x) y;
6   x = x;
7   x = static_cast<decltype(x)&&>(x);
8 }
9 
10 void capture_default(int i) {
11   auto x = [=] {}; // expected-note 2{{candidate constructor}} expected-note 2{{lambda expression begins here}}
12   decltype(x) y; // expected-error {{no matching constructor}}
13   x = x; // expected-error {{cannot be assigned}}
14   x = static_cast<decltype(x)&&>(x); // expected-error {{cannot be assigned}}
15 }
16 
17 void explicit_capture(int i) {
18   auto x = [i] {}; // expected-note 2{{candidate constructor}} expected-note 2{{lambda expression begins here}}
19   decltype(x) y; // expected-error {{no matching constructor}}
20   x = x; // expected-error {{cannot be assigned}}
21   x = static_cast<decltype(x)&&>(x); // expected-error {{cannot be assigned}}
22 }
23