1 // RUN: %clang_cc1 -std=c++1z %s -verify
2 // RUN: %clang_cc1 -std=c++14 %s -verify
3 // RUN: %clang_cc1 -std=c++11 %s -verify
4 
5 
6 auto XL0 = [] constexpr { }; //expected-error{{requires '()'}} expected-error{{expected body}}
7 auto XL1 = [] () mutable
8                  mutable     //expected-error{{cannot appear multiple times}}
9                  mutable { }; //expected-error{{cannot appear multiple times}}
10 
11 #if __cplusplus > 201402L
12 auto XL2 = [] () constexpr mutable constexpr { }; //expected-error{{cannot appear multiple times}}
13 auto L = []() mutable constexpr { };
14 auto L2 = []() constexpr { };
15 auto L4 = []() constexpr mutable { };
16 auto XL16 = [] () constexpr
17                   mutable
18                   constexpr   //expected-error{{cannot appear multiple times}}
19                   mutable     //expected-error{{cannot appear multiple times}}
20                   mutable     //expected-error{{cannot appear multiple times}}
21                   constexpr   //expected-error{{cannot appear multiple times}}
22                   constexpr   //expected-error{{cannot appear multiple times}}
23                   { };
24 
25 #else
26 auto L = []() mutable constexpr {return 0; }; //expected-warning{{is a C++1z extension}}
27 auto L2 = []() constexpr { return 0;};//expected-warning{{is a C++1z extension}}
28 auto L4 = []() constexpr mutable { return 0; }; //expected-warning{{is a C++1z extension}}
29 #endif
30 
31 
32