xref: /llvm-project/libcxx/test/std/containers/sequences/array/array.fill/fill.pass.cpp (revision 9fb3669429a8bc59622c26ab6f5cf6926ee97e7d)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <array>
10 
11 // void fill(const T& u);
12 
13 #include <array>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 
tests()18 TEST_CONSTEXPR_CXX20 bool tests()
19 {
20     {
21         typedef double T;
22         typedef std::array<T, 3> C;
23         C c = {1, 2, 3.5};
24         c.fill(5.5);
25         assert(c.size() == 3);
26         assert(c[0] == 5.5);
27         assert(c[1] == 5.5);
28         assert(c[2] == 5.5);
29     }
30 
31     {
32         typedef double T;
33         typedef std::array<T, 0> C;
34         C c = {};
35         c.fill(5.5);
36         assert(c.size() == 0);
37     }
38     return true;
39 }
40 
main(int,char **)41 int main(int, char**)
42 {
43     tests();
44 #if TEST_STD_VER >= 20
45     static_assert(tests(), "");
46 #endif
47     return 0;
48 }
49