| 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 | // <sstream> |
| 10 | |
| 11 | // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > |
| 12 | // class basic_istringstream |
| 13 | |
| 14 | // void swap(basic_istringstream& rhs); |
| 15 | |
| 16 | #include <sstream> |
| 17 | #include <cassert> |
| 18 | |
| 19 | #include "test_macros.h" |
| 20 | |
| 21 | int main(int, char**) |
| 22 | { |
| 23 | { |
| 24 | std::istringstream ss0(" 123 456"); |
| 25 | std::istringstream ss(" 789 321"); |
| 26 | ss.swap(rhs&: ss0); |
| 27 | assert(ss.rdbuf() != 0); |
| 28 | assert(ss.good()); |
| 29 | assert(ss.str() == " 123 456"); |
| 30 | int i = 0; |
| 31 | ss >> i; |
| 32 | assert(i == 123); |
| 33 | ss >> i; |
| 34 | assert(i == 456); |
| 35 | ss0 >> i; |
| 36 | assert(i == 789); |
| 37 | ss0 >> i; |
| 38 | assert(i == 321); |
| 39 | } |
| 40 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| 41 | { |
| 42 | std::wistringstream ss0(L" 123 456"); |
| 43 | std::wistringstream ss(L" 789 321"); |
| 44 | ss.swap(rhs&: ss0); |
| 45 | assert(ss.rdbuf() != 0); |
| 46 | assert(ss.good()); |
| 47 | assert(ss.str() == L" 123 456"); |
| 48 | int i = 0; |
| 49 | ss >> i; |
| 50 | assert(i == 123); |
| 51 | ss >> i; |
| 52 | assert(i == 456); |
| 53 | ss0 >> i; |
| 54 | assert(i == 789); |
| 55 | ss0 >> i; |
| 56 | assert(i == 321); |
| 57 | } |
| 58 | #endif |
| 59 | |
| 60 | return 0; |
| 61 | } |
| 62 |