1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// { dg-options "-std=gnu++17" }
// Copyright (C) 2013-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// basic_string_view element access
#include <string_view>
#include <stdexcept>
#include <testsuite_hooks.h>
void
test01()
{
typedef std::wstring_view::size_type csize_type;
typedef std::wstring_view::const_reference cref;
typedef std::wstring_view::reference ref;
csize_type csz01, csz02;
const std::wstring_view str01(L"tamarindo, costa rica");
std::wstring_view str02(L"41st street beach, capitola, california");
std::wstring_view str03;
// const_reference operator[] (size_type pos) const;
csz01 = str01.size();
cref cref1 = str01[csz01 - 1];
VERIFY( cref1 == L'a' );
// Undefined behavior at size().
//cref cref2 = str01[csz01];
//VERIFY( cref2 == wchar_t() );
// const_reference at(size_type pos) const;
csz01 = str01.size();
cref cref3 = str01.at(csz01 - 1);
VERIFY( cref3 == L'a' );
try
{
str01.at(csz01);
VERIFY( false ); // Should not get here, as exception thrown.
}
catch (std::out_of_range& fail)
{
VERIFY( true );
}
catch (...)
{
VERIFY( false );
}
}
int
main()
{
test01();
return 0;
}
|
