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type_traits (is_signed): Simplify. 

2013-04-22  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/type_traits (is_signed): Simplify.
	* 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.

From-SVN: r198144
This commit is contained in:
Paolo Carlini 2013-04-22 15:27:54 +00:00 committed by Paolo Carlini
parent ea679d553f
commit 6a4b1a00fa
5 changed files with 17 additions and 13 deletions
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9
libstdc++-v3/ChangeLog
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@ -1,3 +1,12 @@
2013-04-22 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/type_traits (is_signed): Simplify.
* 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.
2013-04-22 Paolo Carlini <paolo.carlini@oracle.com>
N3669

11
libstdc++-v3/include/std/type_traits
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@ -538,18 +538,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ };
template<typename _Tp,
bool = is_integral<_Tp>::value,
bool = is_floating_point<_Tp>::value>
bool = is_arithmetic<_Tp>::value>
struct __is_signed_helper
: public false_type { };
template<typename _Tp>
struct __is_signed_helper<_Tp, false, true>
: public true_type { };
template<typename _Tp>
struct __is_signed_helper<_Tp, true, false>
: public integral_constant<bool, static_cast<bool>(_Tp(-1) < _Tp(0))>
struct __is_signed_helper<_Tp, true>
: public integral_constant<bool, _Tp(-1) < _Tp(0)>
{ };
/// is_signed

2
libstdc++-v3/testsuite/20_util/declval/requirements/1_neg.cc
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@ -19,7 +19,7 @@
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-error "static assertion failed" "" { target *-*-* } 1857 }
// { dg-error "static assertion failed" "" { target *-*-* } 1852 }
#include <utility>

4
libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc
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@ -48,5 +48,5 @@ void test01()
// { dg-error "required from here" "" { target *-*-* } 40 }
// { dg-error "required from here" "" { target *-*-* } 42 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1599 }
// { dg-error "declaration of" "" { target *-*-* } 1563 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1594 }
// { dg-error "declaration of" "" { target *-*-* } 1558 }

4
libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc
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@ -48,5 +48,5 @@ void test01()
// { dg-error "required from here" "" { target *-*-* } 40 }
// { dg-error "required from here" "" { target *-*-* } 42 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1517 }
// { dg-error "declaration of" "" { target *-*-* } 1481 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1512 }
// { dg-error "declaration of" "" { target *-*-* } 1476 }