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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <sstream>
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// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
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// class basic_istringstream
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// template <class charT, class traits, class Allocator>
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// void
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// swap(basic_istringstream<charT, traits, Allocator>& x,
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// basic_istringstream<charT, traits, Allocator>& y);
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#include <sstream>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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std::istringstream ss0(" 123 456");
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std::istringstream ss(" 789 321");
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swap(ss, ss0);
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == " 123 456");
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int i = 0;
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ss >> i;
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assert(i == 123);
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ss >> i;
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assert(i == 456);
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ss0 >> i;
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assert(i == 789);
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ss0 >> i;
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assert(i == 321);
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}
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{
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std::wistringstream ss0(L" 123 456");
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std::wistringstream ss(L" 789 321");
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swap(ss, ss0);
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assert(ss.rdbuf() != 0);
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assert(ss.good());
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assert(ss.str() == L" 123 456");
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int i = 0;
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ss >> i;
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assert(i == 123);
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ss >> i;
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assert(i == 456);
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ss0 >> i;
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assert(i == 789);
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ss0 >> i;
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assert(i == 321);
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}
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return 0;
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}
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