| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 |
| |
| // <string_view> |
| |
| // template<class Range> |
| // basic_string_view(Range&&) -> basic_string_view<ranges::range_value_t<Range>>; // C++23 |
| |
| #include <string_view> |
| #include <cassert> |
| |
| #include "make_string.h" |
| #include "test_iterators.h" |
| #include "test_macros.h" |
| |
| template <class CharT> |
| void test() { |
| auto val = MAKE_STRING(CharT, "test"); |
| auto sv = std::basic_string_view(val); |
| ASSERT_SAME_TYPE(decltype(sv), std::basic_string_view<CharT>); |
| assert(sv.size() == val.size()); |
| assert(sv.data() == val.data()); |
| } |
| |
| void test() { |
| test<char>(); |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| test<wchar_t>(); |
| #endif |
| test<char8_t>(); |
| test<char16_t>(); |
| test<char32_t>(); |
| test<char>(); |
| |
| struct Widget { |
| const char16_t* data_ = u"foo"; |
| contiguous_iterator<const char16_t*> begin() const { return contiguous_iterator<const char16_t*>(data_); } |
| contiguous_iterator<const char16_t*> end() const { return contiguous_iterator<const char16_t*>(data_ + 3); } |
| }; |
| std::basic_string_view bsv = std::basic_string_view(Widget()); |
| ASSERT_SAME_TYPE(decltype(bsv), std::basic_string_view<char16_t>); |
| } |
| |
| int main(int, char**) { |
| test(); |
| |
| return 0; |
| } |