Ville Voutilainen
5e88d2d08d
* include/std/istream: (__is_convertible_to_basic_istream_test(basic_istream<_Ch, _Up>*)): New. (__do_is_convertible_to_basic_istream_impl): Likewise. (__is_convertible_to_basic_istream_impl): Likewise. (__is_convertible_to_basic_istream): Use the new base. (__rvalue_istream_type): New. (operator>>(_Istream&&, _Tp&&)): Use the new helper alias for the SFINAE check, convert to the helper alias type before doing the actual extraction. * include/std/ostream: (__is_convertible_to_basic_ostream_test(basic_ostream<_Ch, _Up>*)): New. (__do_is_convertible_to_basic_ostream_impl): Likewise. (__is_convertible_to_basic_ostream_impl): Likewise. (__is_convertible_to_basic_ostream): Use the new base. (__rvalue_ostream_type): New. (operator<<(_Ostream&&, const _Tp&)): Use the new helper alias for the SFINAE check, convert to the helper alias type before doing the actual insertion. * testsuite/27_io/rvalue_streams-2.cc: Add new tests. From-SVN: r249468
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