clang/test/CXX/expr/expr.prim/expr.prim.lambda/p19.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

// RUN: %clang_cc1 -std=c++11 %s -Wunused -verify

struct MoveOnly {
  MoveOnly(MoveOnly&&);
  MoveOnly(const MoveOnly&);
};

template<typename T> T &&move(T&);
void test_special_member_functions(MoveOnly mo, int i) {
  auto lambda1 = [i]() { }; // expected-note 2 {{lambda expression begins here}}

  // Default constructor
  decltype(lambda1) lambda2; // expected-error{{call to implicitly-deleted default constructor of 'decltype(lambda1)' (aka '<lambda}}

  // Copy assignment operator
  lambda1 = lambda1; // expected-error{{overload resolution selected implicitly-deleted copy assignment operator}}

  // Move assignment operator
  lambda1 = move(lambda1);

  // Copy constructor
  decltype(lambda1) lambda3 = lambda1;
  decltype(lambda1) lambda4(lambda1);

  // Move constructor
  decltype(lambda1) lambda5 = move(lambda1);
  decltype(lambda1) lambda6(move(lambda1));
}