1 // P0018R3 - C++17 lambda capture of *this
2 // { dg-do compile { target c++11 } }
8 auto b = [*this, this] {}; // { dg-error "already captured 'this'" }
9 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
10 auto c = [this, *this] {}; // { dg-error "already captured 'this'" }
11 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
12 auto d = [this] { return a; };
13 auto e = [*this] { return a; }; // { dg-error "'*this' capture only available with" "" { target c++14_down } }
14 auto f = [this] { a++; };
15 auto g = [*this] { a++; }; // { dg-error "in read-only object" }
16 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
17 auto h = [*this] () mutable { a++; };// { dg-error "'*this' capture only available with" "" { target c++14_down } }
18 auto i = [=] { return a; };
19 auto j = [&] { return a; };
20 // P0409R2 - C++2A lambda capture [=, this]
21 auto k = [=, this] { return a; };// { dg-error "explicit by-copy capture of 'this' redundant with by-copy capture default" "" { target c++17_down } }
22 auto l = [&, this] { return a; };
23 auto m = [=, *this] { return a; };// { dg-error "'*this' capture only available with" "" { target c++14_down } }
24 auto n = [&, *this] { return a; };// { dg-error "'*this' capture only available with" "" { target c++14_down } }
25 auto o = [*this, &v] { return a + v; };// { dg-error "'*this' capture only available with" "" { target c++14_down } }
26 auto p = [*this] { this = 0; }; // { dg-error "lvalue required as left operand of assignment" }
27 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
28 auto q = [=, this, *this] { return a; };// { dg-error "already captured 'this'" }
29 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
30 // { dg-error "explicit by-copy capture of 'this' redundant with by-copy capture default" "" { target c++17_down } .-2 }
31 auto r = [=, this, this] { return a; };// { dg-error "already captured 'this'" }
32 // { dg-error "explicit by-copy capture of 'this' redundant with by-copy capture default" "" { target c++17_down } .-1 }
33 auto s = [=, *this, this] { return a; };// { dg-error "already captured 'this'" }
34 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
35 // { dg-error "explicit by-copy capture of 'this' redundant with by-copy capture default" "" { target c++17_down } .-2 }
36 auto t = [=, *this, *this] { return a; };// { dg-error "already captured 'this'" }
37 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
38 auto u = [&, this, *this] { return a; };// { dg-error "already captured 'this'" }
39 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
40 auto w = [&, this, this] { return a; };// { dg-error "already captured 'this'" }
41 auto x = [&, *this, this] { return a; };// { dg-error "already captured 'this'" }
42 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
43 auto y = [&, *this, *this] { return a; };// { dg-error "already captured 'this'" }
44 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
51 return [this]{ return [*this] { return b; }; }()(); // { dg-error "'*this' capture only available with" "" { target c++14_down } }
54 auto c = []{ return [*this] { return b; }; }; // { dg-error "'this' was not captured for this lambda function" }
55 } // { dg-error "invalid use of non-static data member 'B::b'" "" { target *-*-* } .-1 }
56 }; // { dg-error "'*this' capture only available with" "" { target c++14_down } .-2 }
59 C (const C &) = delete;
62 auto d = [this] { return c; };
63 auto e = [*this] { return c; }; // { dg-error "use of deleted function" }
64 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
65 auto f = [=] { return c; };
66 auto g = [&] { return c; };
67 auto h = [this] { bar (); };
68 auto i = [*this] { bar (); }; // { dg-error "use of deleted function" }
69 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
77 auto e = [this] { return d; };
78 auto f = [*this] { return d; }; // { dg-error "use of deleted function" }
79 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }
80 auto g = [=] { return d; };
81 auto h = [&] { return d; };
82 auto i = [this] { bar (); };
83 auto j = [*this] { bar (); }; // { dg-error "use of deleted function" }
84 // { dg-error "'*this' capture only available with" "" { target c++14_down } .-1 }