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