35 lines
927 B
C++
35 lines
927 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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// basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
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#include <ios>
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#include <streambuf>
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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.rdbuf() == 0);
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assert(!ios.good());
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std::streambuf* sb = (std::streambuf*)1;
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std::streambuf* sb2 = ios.rdbuf(sb);
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assert(sb2 == 0);
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assert(ios.rdbuf() == sb);
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assert(ios.good());
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sb2 = ios.rdbuf(0);
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assert(sb2 == (std::streambuf*)1);
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assert(ios.rdbuf() == 0);
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assert(ios.bad());
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}
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