4fc502368a
`string_view` is supported all the way back to C++03 as an extension in `libc++`, and so many of the tests run in all standards modes for all vendors. This is unlikely desired by other standard library vendors using our test suite. So, disable the tests for vendors other than `libc++` in these older standards modes. Differential Revision: https://reviews.llvm.org/D126850
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: no-localization
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// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
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// <string_view>
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// template<class charT, class traits, class Allocator>
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// basic_ostream<charT, traits>&
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// operator<<(basic_ostream<charT, traits>& os,
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// const basic_string_view<charT,traits> str);
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#include <string_view>
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#include <sstream>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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std::ostringstream out;
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std::string_view sv("some text");
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out << sv;
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assert(out.good());
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assert(sv == out.str());
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}
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{
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std::ostringstream out;
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std::string s("some text");
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std::string_view sv(s);
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out.width(12);
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out << sv;
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assert(out.good());
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assert(" " + s == out.str());
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}
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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{
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std::wostringstream out;
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std::wstring_view sv(L"some text");
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out << sv;
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assert(out.good());
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assert(sv == out.str());
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}
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{
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std::wostringstream out;
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std::wstring s(L"some text");
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std::wstring_view sv(s);
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out.width(12);
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out << sv;
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assert(out.good());
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assert(L" " + s == out.str());
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}
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#endif
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return 0;
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}
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