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 // const T* data() const;
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
main()23 int main()
24 {
25 {
26 typedef double T;
27 typedef std::array<T, 3> C;
28 const C c = {1, 2, 3.5};
29 const T* p = c.data();
30 assert(p[0] == 1);
31 assert(p[1] == 2);
32 assert(p[2] == 3.5);
33 }
34 {
35 typedef double T;
36 typedef std::array<T, 0> C;
37 const C c = {};
38 const T* p = c.data();
39 (void)p; // to placate scan-build
40 }
41 #if TEST_STD_VER > 14
42 {
43 typedef std::array<int, 5> C;
44 constexpr C c1{0,1,2,3,4};
45 constexpr const C c2{0,1,2,3,4};
46
47 static_assert ( c1.data() == &c1[0], "");
48 static_assert ( *c1.data() == c1[0], "");
49 static_assert ( c2.data() == &c2[0], "");
50 static_assert ( *c2.data() == c2[0], "");
51 }
52 #endif
53 }
54