2011-04-13  Daniel Krugler  <daniel.kruegler@googlemail.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/48526
	* include/std/type_traits (struct is_constructible): Re-implement,
	according to n3290.
	(struct is_default_constructible): Add.
	(struct is_destructible): Likewise.
	(struct __and_, __or_, __not_): Add and use throughout; reorder some
	facilities, other minor tweaks.
	* testsuite/util/testsuite_tr1.h: Add test types.
	* testsuite/20_util/is_constructible/value-2.cc: New.
	* testsuite/20_util/is_default_constructible/value.cc: Likewise.
	* testsuite/20_util/is_default_constructible/requirements/typedefs.cc:
	Likewise.
	* testsuite/20_util/is_default_constructible/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_destructible/value.cc: Likewise.
	* testsuite/20_util/is_destructible/requirements/typedefs.cc:
	Likewise.
	* testsuite/20_util/is_destructible/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
	dg-error line numbers.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.
	* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.

2011-04-13  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/20_util/is_function/value.cc: Add, adapted from the tr
	testsuite. 
	* testsuite/20_util/is_function/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_function/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_function/24808.cc: Likewise.
	* testsuite/20_util/is_function/35637.cc: Likewise.
	* testsuite/20_util/is_object/value.cc: Likewise.
	* testsuite/20_util/is_object/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_object/requirements/explicit_instantiation.cc:
	: Likewise.
	* testsuite/20_util/is_object/24808.cc: Likewise.
	* testsuite/20_util/is_compound/value.cc: Likewise.
	* testsuite/20_util/is_compound/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_compound/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_member_object_pointer/value.cc: Likewise.
	* testsuite/20_util/is_member_object_pointer/requirements/
	typedefs.cc: Likewise.
	* testsuite/20_util/is_member_object_pointer/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_fundamental/value.cc: Likewise.
	* testsuite/20_util/is_fundamental/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_fundamental/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_member_pointer/value.cc: Likewise.
	* testsuite/20_util/is_member_pointer/requirements/typedefs.cc: 
	Likewise.
	* testsuite/20_util/is_member_pointer/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_member_function_pointer/value.cc: Likewise.
	* testsuite/20_util/is_member_function_pointer/
	requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_member_function_pointer/requirements/
	explicit_instantiation.cc: Likewise.

	* testsuite/20_util/is_convertible/value.cc: Minor tweak, adjust
	Copyright years.