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 // <array>
11 
12 // template <class T, size_t N> constexpr size_type array<T,N>::size();
13 
14 #include <array>
15 #include <cassert>
16 
17 #include "test_macros.h"
18 
19 // std::array is explicitly allowed to be initialized with A a = { init-list };.
20 // Disable the missing braces warning for this reason.
21 #include "disable_missing_braces_warning.h"
22 
23 int main()
24 {
25     {
26         typedef double T;
27         typedef std::array<T, 3> C;
28         C c = {1, 2, 3.5};
29         assert(c.size() == 3);
30         assert(c.max_size() == 3);
31         assert(!c.empty());
32     }
33     {
34         typedef double T;
35         typedef std::array<T, 0> C;
36         C c = {};
37         assert(c.size() == 0);
38         assert(c.max_size() == 0);
39         assert(c.empty());
40     }
41 #if TEST_STD_VER >= 11
42     {
43         typedef double T;
44         typedef std::array<T, 3> C;
45         constexpr C c = {1, 2, 3.5};
46         static_assert(c.size() == 3, "");
47         static_assert(c.max_size() == 3, "");
48         static_assert(!c.empty(), "");
49     }
50     {
51         typedef double T;
52         typedef std::array<T, 0> C;
53         constexpr C c = {};
54         static_assert(c.size() == 0, "");
55         static_assert(c.max_size() == 0, "");
56         static_assert(c.empty(), "");
57     }
58 #endif
59 }
60