26 lines
624 B
C++
26 lines
624 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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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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// bool operator!() const;
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#include <ios>
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#include <cassert>
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int main()
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{
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std::ios ios(0);
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assert(!ios == ios.fail());
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ios.setstate(std::ios::failbit);
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assert(!ios == ios.fail());
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}
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