30 lines
695 B
C++
30 lines
695 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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// class ios_base
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// ios_base& boolalpha(ios_base& str);
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#include <ios>
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#include <streambuf>
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#include <cassert>
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struct testbuf : public std::streambuf {};
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int main()
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{
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testbuf sb;
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std::ios ios(&sb);
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std::ios_base& r = std::boolalpha(ios);
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assert(&r == &ios);
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assert(ios.flags() & std::ios::boolalpha);
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}
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