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 // <sstream> 11 12 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 13 // class basic_istringstream 14 15 // template <class charT, class traits, class Allocator> 16 // void 17 // swap(basic_istringstream<charT, traits, Allocator>& x, 18 // basic_istringstream<charT, traits, Allocator>& y); 19 20 #include <sstream> 21 #include <cassert> 22 23 int main() 24 { 25 { 26 std::istringstream ss0(" 123 456"); 27 std::istringstream ss(" 789 321"); 28 swap(ss, ss0); 29 assert(ss.rdbuf() != 0); 30 assert(ss.good()); 31 assert(ss.str() == " 123 456"); 32 int i = 0; 33 ss >> i; 34 assert(i == 123); 35 ss >> i; 36 assert(i == 456); 37 ss0 >> i; 38 assert(i == 789); 39 ss0 >> i; 40 assert(i == 321); 41 } 42 { 43 std::wistringstream ss0(L" 123 456"); 44 std::wistringstream ss(L" 789 321"); 45 swap(ss, ss0); 46 assert(ss.rdbuf() != 0); 47 assert(ss.good()); 48 assert(ss.str() == L" 123 456"); 49 int i = 0; 50 ss >> i; 51 assert(i == 123); 52 ss >> i; 53 assert(i == 456); 54 ss0 >> i; 55 assert(i == 789); 56 ss0 >> i; 57 assert(i == 321); 58 } 59 } 60
