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 // template<class E> class initializer_list;
13 
14 // const E* begin() const;
15 // const E* end() const;
16 // size_t size() const;
17 
18 #include <initializer_list>
19 #include <cassert>
20 #include <cstddef>
21 
22 #include "test_macros.h"
23 
24 struct A
25 {
AA26     A(std::initializer_list<int> il)
27     {
28         const int* b = il.begin();
29         const int* e = il.end();
30         assert(il.size() == 3);
31         assert(static_cast<std::size_t>(e - b) == il.size());
32         assert(*b++ == 3);
33         assert(*b++ == 2);
34         assert(*b++ == 1);
35     }
36 };
37 
38 #if TEST_STD_VER > 11
39 struct B
40 {
BB41     constexpr B(std::initializer_list<int> il)
42     {
43         const int* b = il.begin();
44         const int* e = il.end();
45         assert(il.size() == 3);
46         assert(static_cast<std::size_t>(e - b) == il.size());
47         assert(*b++ == 3);
48         assert(*b++ == 2);
49         assert(*b++ == 1);
50     }
51 };
52 
53 #endif  // TEST_STD_VER > 11
54 
main()55 int main()
56 {
57     A test1 = {3, 2, 1};
58 #if TEST_STD_VER > 11
59     constexpr B test2 = {3, 2, 1};
60     (void)test2;
61 #endif  // TEST_STD_VER > 11
62 }
63