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72 lines
1.7 KiB
C++
72 lines
1.7 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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// <ios>
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// template <class charT, class traits> class basic_ios
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// void clear(iostate state = goodbit);
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#include <ios>
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#include <streambuf>
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#include <cassert>
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#include "test_macros.h"
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struct testbuf : public std::streambuf {};
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int main(int, char**)
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{
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{
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std::ios ios(0);
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ios.clear();
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assert(ios.rdstate() == std::ios::badbit);
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#ifndef TEST_HAS_NO_EXCEPTIONS
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try
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{
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ios.exceptions(std::ios::badbit);
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assert(false);
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}
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catch (...)
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{
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}
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try
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{
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ios.clear();
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assert(false);
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}
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catch (std::ios::failure&)
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{
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assert(ios.rdstate() == std::ios::badbit);
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}
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try
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{
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ios.clear(std::ios::eofbit);
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assert(false);
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}
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catch (std::ios::failure&)
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{
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assert(ios.rdstate() == (std::ios::eofbit | std::ios::badbit));
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}
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#endif
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}
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{
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testbuf sb;
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std::ios ios(&sb);
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ios.clear();
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assert(ios.rdstate() == std::ios::goodbit);
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ios.exceptions(std::ios::badbit);
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ios.clear();
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assert(ios.rdstate() == std::ios::goodbit);
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ios.clear(std::ios::eofbit);
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assert(ios.rdstate() == std::ios::eofbit);
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}
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return 0;
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}
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