a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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 <experimental/string_view>
|
|
#include <cassert>
|
|
|
|
template <typename CharT>
|
|
bool test ( const CharT *s, size_t len ) {
|
|
std::experimental::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 __cplusplus >= 201103L
|
|
assert ( test ( u"ABCDE", 5 ));
|
|
assert ( test ( u"a", 1 ));
|
|
|
|
assert ( test ( U"ABCDE", 5 ));
|
|
assert ( test ( U"a", 1 ));
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
{
|
|
constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 );
|
|
static_assert ( sv.length() == 2, "" );
|
|
static_assert ( sv.back() == 'B', "" );
|
|
}
|
|
#endif
|
|
}
|