62 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <sstream>10 11// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >12// class basic_istringstream13 14// void str(const basic_string<charT,traits,Allocator>& s);15 16#include <sstream>17#include <cassert>18 19#include "test_macros.h"20 21int main(int, char**)22{23 {24 std::istringstream ss(" 123 456");25 assert(ss.rdbuf() != 0);26 assert(ss.good());27 assert(ss.str() == " 123 456");28 int i = 0;29 ss >> i;30 assert(i == 123);31 ss >> i;32 assert(i == 456);33 ss.str(" 789");34 ss.clear();35 assert(ss.good());36 assert(ss.str() == " 789");37 ss >> i;38 assert(i == 789);39 }40#ifndef TEST_HAS_NO_WIDE_CHARACTERS41 {42 std::wistringstream ss(L" 123 456");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 ss.str(L" 789");52 ss.clear();53 assert(ss.good());54 assert(ss.str() == L" 789");55 ss >> i;56 assert(i == 789);57 }58#endif59 60 return 0;61}62