p12.cpp revision 67b2c554dc12f589471713b7b01e9c94257ae593 
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      // FIXME: We odr-use here, but we shouldn't.
56      //      int x[N][M];
57      //      x[0][0] = i;
58    };
59    (void)N;
60    (void)M;
61    (void)m2;
62  };
63  struct s1 {
64    int f;
65    void work(int n) { // expected-note{{declared here}}
66      int m = n*n;
67      int j = 40; // expected-note{{declared here}}
68      auto m3 = [this,m] { // expected-note 2{{lambda expression begins here}}
69        auto m4 = [&,j] { // expected-error{{variable 'j' cannot be implicitly captured in a lambda with no capture-default specified}}
70          int x = n; // expected-error{{variable 'n' cannot be implicitly captured in a lambda with no capture-default specified}}
71          x += m;
72          x += i; // expected-error{{reference to local variable 'i' declared in enclosing function 'f1'}}
73          x += f;
74        };
75      };
76    }
77  };
78}
79