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,size_t len)22 void test ( const CharT *s, 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 test ( L"ABCDE", 5 );
37 test ( L"a", 1 );
38
39 #if TEST_STD_VER >= 11
40 test ( u"ABCDE", 5 );
41 test ( u"a", 1 );
42
43 test ( U"ABCDE", 5 );
44 test ( U"a", 1 );
45 #endif
46
47 #if TEST_STD_VER > 11
48 {
49 constexpr const char *s = "ABC";
50 constexpr std::basic_string_view<char> sv( s, 2 );
51 static_assert( sv.length() == 2, "" );
52 static_assert( sv.data() == s, "" );
53 }
54 #endif
55
56 return 0;
57 }
58