2010-02-12  Jonathan Wakely  <jwakely.gcc@gmail.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/42819, DR 1315
	* include/std/future (async): Use std::result_of for the template
	argument of the std::future return type; adjust everywhere.
	* testsuite/30_threads/async/42819.cc: New.
	* testsuite/30_threads/packaged_task/cons/assign_neg.cc: Adjust
	dg-error line number.
	* testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r156742