You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.2 KiB
51 lines
1.2 KiB
4 months ago
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
||
|
|
// Source Licenses. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
|
||
|
|
// <string_view>
|
||
|
|
|
||
|
|
// constexpr const _CharT& front();
|
||
|
|
|
||
|
|
#include <string_view>
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
#include "test_macros.h"
|
||
|
|
|
||
|
|
template <typename CharT>
|
||
|
|
bool test ( const CharT *s, size_t len ) {
|
||
|
|
std::basic_string_view<CharT> sv ( s, len );
|
||
|
|
assert ( sv.length() == len );
|
||
|
|
assert ( sv.back() == s[len-1] );
|
||
|
|
return &sv.back() == s + len - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main () {
|
||
|
|
assert ( test ( "ABCDE", 5 ));
|
||
|
|
assert ( test ( "a", 1 ));
|
||
|
|
|
||
|
|
assert ( test ( L"ABCDE", 5 ));
|
||
|
|
assert ( test ( L"a", 1 ));
|
||
|
|
|
||
|
|
#if TEST_STD_VER >= 11
|
||
|
|
assert ( test ( u"ABCDE", 5 ));
|
||
|
|
assert ( test ( u"a", 1 ));
|
||
|
|
|
||
|
|
assert ( test ( U"ABCDE", 5 ));
|
||
|
|
assert ( test ( U"a", 1 ));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if TEST_STD_VER >= 11
|
||
|
|
{
|
||
|
|
constexpr std::basic_string_view<char> sv ( "ABC", 2 );
|
||
|
|
static_assert ( sv.length() == 2, "" );
|
||
|
|
static_assert ( sv.back() == 'B', "" );
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|