diff options
Diffstat (limited to 'test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp')
-rw-r--r-- | test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp b/test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp new file mode 100644 index 0000000000000..5b7664e3f55cd --- /dev/null +++ b/test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp @@ -0,0 +1,63 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <istream> + +// template <class charT, class traits, class T> +// basic_istream<charT, traits>& +// operator>>(basic_istream<charT, traits>&& is, T& x); + +#include <istream> +#include <cassert> + +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + +template <class CharT> +struct testbuf + : public std::basic_streambuf<CharT> +{ + typedef std::basic_string<CharT> string_type; + typedef std::basic_streambuf<CharT> base; +private: + string_type str_; +public: + + testbuf() {} + testbuf(const string_type& str) + : str_(str) + { + base::setg(const_cast<CharT*>(str_.data()), + const_cast<CharT*>(str_.data()), + const_cast<CharT*>(str_.data()) + str_.size()); + } + + CharT* eback() const {return base::eback();} + CharT* gptr() const {return base::gptr();} + CharT* egptr() const {return base::egptr();} +}; + +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES + +int main() +{ +#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES + { + testbuf<char> sb(" 123"); + int i = 0; + std::istream(&sb) >> i; + assert(i == 123); + } + { + testbuf<wchar_t> sb(L" 123"); + int i = 0; + std::wistream(&sb) >> i; + assert(i == 123); + } +#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES +} |