p12.cpp revision ac6260187b6b2f26faa9264d170d649a501f58a9 
1// RUN: %clang_cc1 -std=c++11 %s -Wunused -verify
2
3void odr_used() {
4  int i = 17;
5  [i]{}();
6}
7
8struct ReachingThis {
9  static void static_foo() {
10    (void)[this](){}; // expected-error{{'this' cannot be captured in this context}}
11
12    struct Local {
13      int i;
14
15      void bar() {
16        (void)[this](){};
17        (void)[&](){i = 7; };
18      }
19    };
20  }
21
22  void foo() {
23    (void)[this](){};
24
25    struct Local {
26      int i;
27
28      static void static_bar() {
29        (void)[this](){}; // expected-error{{'this' cannot be captured in this context}}
30        (void)[&](){i = 7; }; // expected-error{{invalid use of nonstatic data member 'i'}}
31      }
32    };
33  }
34};
35
36void immediately_enclosing(int i) { // expected-note{{'i' declared here}}
37  [i]() {
38    [i] {}();
39  }();
40
41  [=]() {
42    [i] {}();
43  }();
44
45  []() { // expected-note{{lambda expression begins here}}
46    [i] {}(); // expected-error{{variable 'i' cannot be implicitly captured in a lambda with no capture-default specified}}
47  }();
48}
49
50void f1(int i) { // expected-note{{declared here}}
51  int const N = 20;
52  auto m1 = [=]{
53    int const M = 30;
54    auto m2 = [i]{
55      int x[N][M];
56      x[0][0] = i;
57    };
58    (void)N;
59    (void)M;
60    (void)m2;
61  };
62  struct s1 {
63    int f;
64    void work(int n) { // expected-note{{declared here}}
65      int m = n*n;
66      int j = 40; // expected-note{{declared here}}
67      auto m3 = [this,m] { // expected-note 3{{lambda expression begins here}}
68        auto m4 = [&,j] { // expected-error{{variable 'j' cannot be implicitly captured in a lambda with no capture-default specified}}
69          int x = n; // expected-error{{variable 'n' cannot be implicitly captured in a lambda with no capture-default specified}}
70          x += m;
71          x += i; // expected-error{{variable 'i' cannot be implicitly captured in a lambda with no capture-default specified}}
72          x += f;
73        };
74      };
75    }
76  };
77}
78