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 // UNSUPPORTED: c++98, c++03
11 
12 // <initializer_list>
13 
14 // template<class E> const E* begin(initializer_list<E> il);
15 
16 #include <initializer_list>
17 #include <cassert>
18 #include <cstddef>
19 
20 #include "test_macros.h"
21 
22 struct A
23 {
AA24     A(std::initializer_list<int> il)
25     {
26         const int* b = begin(il);
27         const int* e = end(il);
28         assert(il.size() == 3);
29         assert(static_cast<std::size_t>(e - b) == il.size());
30         assert(*b++ == 3);
31         assert(*b++ == 2);
32         assert(*b++ == 1);
33     }
34 };
35 
36 #if TEST_STD_VER > 11
37 struct B
38 {
BB39     constexpr B(std::initializer_list<int> il)
40     {
41         const int* b = begin(il);
42         const int* e = end(il);
43         assert(il.size() == 3);
44         assert(static_cast<std::size_t>(e - b) == il.size());
45         assert(*b++ == 3);
46         assert(*b++ == 2);
47         assert(*b++ == 1);
48     }
49 };
50 
51 #endif  // TEST_STD_VER > 11
52 
main()53 int main()
54 {
55     A test1 = {3, 2, 1};
56 #if TEST_STD_VER > 11
57     constexpr B test2 = {3, 2, 1};
58     (void)test2;
59 #endif  // TEST_STD_VER > 11
60 }
61