1// -*- C++ -*-
2//===---------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===---------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___FWD_STRING_VIEW_H
11#define _LIBCPP___FWD_STRING_VIEW_H
12
13#include <__config>
14#include <__fwd/string.h>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17# pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_NAMESPACE_STD
21
22template <class _CharT, class _Traits = char_traits<_CharT> >
23class basic_string_view;
24
25typedef basic_string_view<char> string_view;
26#if _LIBCPP_HAS_CHAR8_T
27typedef basic_string_view<char8_t> u8string_view;
28#endif
29typedef basic_string_view<char16_t> u16string_view;
30typedef basic_string_view<char32_t> u32string_view;
31#if _LIBCPP_HAS_WIDE_CHARACTERS
32typedef basic_string_view<wchar_t> wstring_view;
33#endif
34
35// clang-format off
36template <class _CharT, class _Traits>
37class _LIBCPP_PREFERRED_NAME(string_view)
38#if _LIBCPP_HAS_WIDE_CHARACTERS
39 _LIBCPP_PREFERRED_NAME(wstring_view)
40#endif
41#if _LIBCPP_HAS_CHAR8_T
42 _LIBCPP_PREFERRED_NAME(u8string_view)
43#endif
44 _LIBCPP_PREFERRED_NAME(u16string_view)
45 _LIBCPP_PREFERRED_NAME(u32string_view)
46 basic_string_view;
47// clang-format on
48_LIBCPP_END_NAMESPACE_STD
49
50#endif // _LIBCPP___FWD_STRING_VIEW_H
51