1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <string> 11 12 // template<class charT, class traits, class Allocator> 13 // basic_ostream<charT, traits>& 14 // operator<<(basic_ostream<charT, traits>& os, 15 // const basic_string_view<charT,traits> str); 16 17 #include <experimental/string_view> 18 #include <sstream> 19 #include <cassert> 20 21 using std::experimental::string_view; 22 using std::experimental::wstring_view; 23 24 int main() 25 { 26 { 27 std::ostringstream out; 28 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 string_view sv(s); 37 out.width(12); 38 out << sv; 39 assert(out.good()); 40 assert(" " + s == out.str()); 41 } 42 { 43 std::wostringstream out; 44 wstring_view sv(L"some text"); 45 out << sv; 46 assert(out.good()); 47 assert(sv == out.str()); 48 } 49 { 50 std::wostringstream out; 51 std::wstring s(L"some text"); 52 wstring_view sv(s); 53 out.width(12); 54 out << sv; 55 assert(out.good()); 56 assert(L" " + s == out.str()); 57 } 58 } 59
