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 // UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
10
11 // <string_view>
12
13 // constexpr const _CharT* data() const noexcept;
14
15 #include <string_view>
16 #include <cassert>
17 #include <iterator>
18
19 #include "test_macros.h"
20
21 template <typename CharT>
test(const CharT * s,std::size_t len)22 void test(const CharT* s, std::size_t len) {
23 std::basic_string_view<CharT> sv(s, len);
24 assert(sv.length() == len);
25 assert(sv.data() == s);
26 #if TEST_STD_VER > 14
27 // make sure we pick up std::data, too!
28 assert(sv.data() == std::data(sv));
29 #endif
30 }
31
main(int,char **)32 int main(int, char**) {
33 test("ABCDE", 5);
34 test("a", 1);
35
36 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
37 test(L"ABCDE", 5);
38 test(L"a", 1);
39 #endif
40
41 #if TEST_STD_VER >= 11
42 test(u"ABCDE", 5);
43 test(u"a", 1);
44
45 test(U"ABCDE", 5);
46 test(U"a", 1);
47 #endif
48
49 #if TEST_STD_VER > 11
50 {
51 constexpr const char* s = "ABC";
52 constexpr std::basic_string_view<char> sv(s, 2);
53 static_assert(sv.length() == 2, "");
54 static_assert(sv.data() == s, "");
55 }
56 #endif
57
58 return 0;
59 }
60