1 // RUN: %clang_cc1 -fsyntax-only -Wno-unused-value -verify -std=c++11 %s
10 []; // expected-error {{expected body of lambda expression}}
11 [+] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
12 [foo+] {}; // expected-error {{expected ',' or ']' in lambda capture list}}
13 [foo,&this] {}; // expected-error {{'this' cannot be captured by reference}}
14 [&this] {}; // expected-error {{'this' cannot be captured by reference}}
15 [&,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
16 [=,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
19 [&] (int) mutable -> void {};
20 [foo,bar] () { return 3; };
24 [] () -> class C { return C(); };
25 [] () -> enum E { return e; };
27 [] -> int { return 0; }; // expected-error{{lambda requires '()' before return type}}
28 [] mutable -> int { return 0; }; // expected-error{{lambda requires '()' before 'mutable'}}
29 [](int) -> {}; // PR13652 expected-error {{expected a type}}
33 void designator_or_lambda() {
37 int a1[1] = {[b] (T()) {}}; // expected-error{{no viable conversion from '<lambda}}
38 int a2[1] = {[b] = 1 };
39 int a3[1] = {[b,c] = 1 }; // expected-error{{expected body of lambda expression}}
40 int a4[1] = {[&b] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'const int *'}}
41 int a5[3] = { []{return 0;}() };
42 int a6[1] = {[this] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'C *'}}
45 void delete_lambda(int *p) {
47 delete [] (int*) { new int }; // ok, compound-literal, not lambda
48 delete [] { return new int; } (); // expected-error{{expected expression}}
49 delete [&] { return new int; } (); // ok, lambda
52 // We support init-captures in C++11 as an extension.
55 [n(0)] () mutable -> int { return ++n; }; // expected-warning{{extension}}
56 [n{0}] { return; }; // expected-error {{<initializer_list>}} expected-warning{{extension}}
57 [n = 0] { return ++n; }; // expected-error {{captured by copy in a non-mutable}} expected-warning{{extension}}
58 [n = {0}] { return; }; // expected-error {{<initializer_list>}} expected-warning{{extension}}
59 [a([&b = z]{})](){}; // expected-warning 2{{extension}}
62 auto y = [&r = x, x = x + 1]() -> int { // expected-warning 2{{extension}}