1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: no-localization 10 // UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14) 11 12 // <string_view> 13 14 // template<class charT, class traits, class Allocator> 15 // basic_ostream<charT, traits>& 16 // operator<<(basic_ostream<charT, traits>& os, 17 // const basic_string_view<charT,traits> str); 18 19 #include <string_view> 20 #include <sstream> 21 #include <cassert> 22 23 #include "test_macros.h" 24 main(int,char **)25int main(int, char**) { 26 { 27 std::ostringstream out; 28 std::string_view sv("some text"); 29 out << sv; 30 assert(out.good()); 31 assert(sv == out.str()); 32 } 33 { 34 std::ostringstream out; 35 std::string s("some text"); 36 std::string_view sv(s); 37 out.width(12); 38 out << sv; 39 assert(out.good()); 40 assert(" " + s == out.str()); 41 } 42 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 43 { 44 std::wostringstream out; 45 std::wstring_view sv(L"some text"); 46 out << sv; 47 assert(out.good()); 48 assert(sv == out.str()); 49 } 50 { 51 std::wostringstream out; 52 std::wstring s(L"some text"); 53 std::wstring_view sv(s); 54 out.width(12); 55 out << sv; 56 assert(out.good()); 57 assert(L" " + s == out.str()); 58 } 59 #endif 60 61 return 0; 62 } 63