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_istream<charT,traits>& 14 // operator>>(basic_istream<charT,traits>& is, 15 // basic_string<charT,traits,Allocator>& str); 16 17 #include <string> 18 #include <sstream> 19 #include <cassert> 20 21 int main() 22 { 23 { 24 std::istringstream in("a bc defghij"); 25 std::string s("initial text"); 26 in >> s; 27 assert(in.good()); 28 assert(s == "a"); 29 assert(in.peek() == ' '); 30 in >> s; 31 assert(in.good()); 32 assert(s == "bc"); 33 assert(in.peek() == ' '); 34 in.width(3); 35 in >> s; 36 assert(in.good()); 37 assert(s == "def"); 38 assert(in.peek() == 'g'); 39 in >> s; 40 assert(in.eof()); 41 assert(s == "ghij"); 42 in >> s; 43 assert(in.fail()); 44 } 45 { 46 std::wistringstream in(L"a bc defghij"); 47 std::wstring s(L"initial text"); 48 in >> s; 49 assert(in.good()); 50 assert(s == L"a"); 51 assert(in.peek() == L' '); 52 in >> s; 53 assert(in.good()); 54 assert(s == L"bc"); 55 assert(in.peek() == L' '); 56 in.width(3); 57 in >> s; 58 assert(in.good()); 59 assert(s == L"def"); 60 assert(in.peek() == L'g'); 61 in >> s; 62 assert(in.eof()); 63 assert(s == L"ghij"); 64 in >> s; 65 assert(in.fail()); 66 } 67 } 68
