2010-02-21 Paolo Carlini <paolo.carlini@oracle.com>

2010-02-21  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/complex (proj): Change return type per DR 1137.
	(conj): Copy from tr1_impl, likewise adjust return type.
	* include/tr1_impl/complex (conj): Remove.
	* include/tr1/complex (conj): Add both overloads.
	* testsuite/26_numerics/complex/dr781.cc: Rename to...
	* testsuite/26_numerics/complex/dr781_dr1137.cc: ... this, and extend.

	* include/tr1_impl/complex (arg): Optimize.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@156940 138bc75d-0d04-0410-961f-82ee72b054a4