1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // template<class E> class initializer_list;
11 
12 // const E* begin() const;
13 // const E* end() const;
14 // size_t size() const;
15 
16 #include <initializer_list>
17 #include <cassert>
18 
19 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
20 
21 struct A
22 {
AA23     A(std::initializer_list<int> il)
24     {
25         const int* b = il.begin();
26         const int* e = il.end();
27         assert(il.size() == 3);
28         assert(e - b == il.size());
29         assert(*b++ == 3);
30         assert(*b++ == 2);
31         assert(*b++ == 1);
32     }
33 };
34 
35 #if _LIBCPP_STD_VER > 11
36 struct B
37 {
BB38     constexpr B(std::initializer_list<int> il)
39     {
40         const int* b = il.begin();
41         const int* e = il.end();
42         assert(il.size() == 3);
43         assert(e - b == il.size());
44         assert(*b++ == 3);
45         assert(*b++ == 2);
46         assert(*b++ == 1);
47     }
48 };
49 
50 #endif  // _LIBCPP_STD_VER > 11
51 
52 #endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
53 
main()54 int main()
55 {
56 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
57     A test1 = {3, 2, 1};
58 #endif
59 #if _LIBCPP_STD_VER > 11
60     constexpr B test2 = {3, 2, 1};
61 #endif  // _LIBCPP_STD_VER > 11
62 }
63