52 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// <ios>10 11// template <class charT, class traits> class basic_ios12 13// explicit basic_ios(basic_streambuf<charT,traits>* sb);14 15#include <ios>16#include <streambuf>17#include <cassert>18 19#include "test_macros.h"20 21int main(int, char**)22{23 {24 std::streambuf* sb = 0;25 std::basic_ios<char> ios(sb);26 assert(ios.rdbuf() == sb);27 assert(ios.tie() == 0);28 assert(ios.rdstate() == std::ios::badbit);29 assert(ios.exceptions() == std::ios::goodbit);30 assert(ios.flags() == (std::ios::skipws | std::ios::dec));31 assert(ios.width() == 0);32 assert(ios.precision() == 6);33 assert(ios.fill() == ' ');34 assert(ios.getloc() == std::locale());35 }36 {37 std::streambuf* sb = (std::streambuf*)1;38 std::basic_ios<char> ios(sb);39 assert(ios.rdbuf() == sb);40 assert(ios.tie() == 0);41 assert(ios.rdstate() == std::ios::goodbit);42 assert(ios.exceptions() == std::ios::goodbit);43 assert(ios.flags() == (std::ios::skipws | std::ios::dec));44 assert(ios.width() == 0);45 assert(ios.precision() == 6);46 assert(ios.fill() == ' ');47 assert(ios.getloc() == std::locale());48 }49 50 return 0;51}52