type_traits.h (__remove_unsigned): Fix up for signed char, bool, wchar_t, and floatin...

type_traits.h (__remove_unsigned): Fix up for signed char, bool, wchar_t, and floating point types.

2006-09-29  Benjamin Kosnik  <bkoz@redhat.com>
            Howard Hinnant  <hhinnant@apple.com>
            Paolo Carlini  <pcarlini@suse.de>

	* include/ext/type_traits.h (__remove_unsigned): Fix up for signed
	char, bool, wchar_t, and floating point types.
	(__add_unsigned): Same.
	* testsuite/ext/type_traits: New.
	* testsuite/ext/type_traits.cc: Move...
	* testsuite/ext/type_traits/numeric_traits.cc: ...here.
	* testsuite/ext/type_traits/add_unsigned_floating_neg.cc: New.
	* testsuite/ext/type_traits/add_unsigned_integer_neg.cc: New.
	* testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: New.
	* testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: New.
	* testsuite/ext/type_traits/add_unsigned.cc: New.
	* testsuite/ext/type_traits/remove_unsigned.cc: New.

Co-Authored-By: Howard Hinnant <hhinnant@apple.com>
Co-Authored-By: Paolo Carlini <pcarlini@suse.de>
From-SVN: r117303