Jonathan Wakely def227f1ad PR libstdc++/79486 use lvalues in result_of expressions
PR libstdc++/79486
	* include/std/future (__future_base::_Task_state::_M_run)
	(__future_base::_Task_state::_M_run_delayed): Use lvalue types in
	result_of expressions.
	* testsuite/30_threads/packaged_task/79486.cc: New.

From-SVN: r245386
2017-02-13 13:13:29 +00:00
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