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functional (_Derives_from_unary_function): Remove.

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2013-04-04  François Dumont  <fdumont@gcc.gnu.org>

	* include/std/functional (_Derives_from_unary_function): Remove.
	(_Derives_from_binary_function): Remove.
	* include/std/type_traits (__sfinae_types): Remove.
	(__is_assignable_helper): Adapt.
	(__is_convertible_helper): Adapt.
	(_GLIBCXX_HAS_NESTED_TYPE): Adapt.
	Remove several explicit instantiations of integral_constant.
	* testsuite/20_util/reference_wrapper/typedefs-3.cc: Adapt.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Adapt dg-error line number.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.
	* testsuite/20_util/bind/ref_neg.cc: Likewise.

From-SVN: r197551
This commit is contained in:
François Dumont 2013-04-07 10:42:51 +00:00
parent 7c42966e85
commit 82b12c4b24
8 changed files with 84 additions and 113 deletions
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17
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,20 @@
2013-04-07 François Dumont <fdumont@gcc.gnu.org>
* include/std/functional (_Derives_from_unary_function): Remove.
(_Derives_from_binary_function): Remove.
* include/std/type_traits (__sfinae_types): Remove.
(__is_assignable_helper): Adapt.
(__is_convertible_helper): Adapt.
(_GLIBCXX_HAS_NESTED_TYPE): Adapt.
Remove several explicit instantiations of integral_constant.
* testsuite/20_util/reference_wrapper/typedefs-3.cc: Adapt.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
Adapt dg-error line number.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.
* testsuite/20_util/bind/ref_neg.cc: Likewise.
2013-04-05 Jonathan Wakely <jwakely.gcc@gmail.com>
PR libstdc++/56841

32
libstdc++-v3/include/std/functional
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@ -185,38 +185,6 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
: _Weak_result_type_impl<typename remove_cv<_Functor>::type>
{ };
/// Determines if the type _Tp derives from unary_function.
template<typename _Tp>
struct _Derives_from_unary_function : __sfinae_types
{
private:
template<typename _T1, typename _Res>
static __one __test(const volatile unary_function<_T1, _Res>*);
// It's tempting to change "..." to const volatile void*, but
// that fails when _Tp is a function type.
static __two __test(...);
public:
static const bool value = sizeof(__test((_Tp*)0)) == 1;
};
/// Determines if the type _Tp derives from binary_function.
template<typename _Tp>
struct _Derives_from_binary_function : __sfinae_types
{
private:
template<typename _T1, typename _T2, typename _Res>
static __one __test(const volatile binary_function<_T1, _T2, _Res>*);
// It's tempting to change "..." to const volatile void*, but
// that fails when _Tp is a function type.
static __two __test(...);
public:
static const bool value = sizeof(__test((_Tp*)0)) == 1;
};
/**
* Invoke a function object, which may be either a member pointer or a
* function object. The first parameter will tell which.

127
libstdc++-v3/include/std/type_traits
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@ -127,12 +127,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
: public integral_constant<bool, !_Pp::value>
{ };
struct __sfinae_types
{
typedef char __one;
typedef struct { char __arr[2]; } __two;
};
// For several sfinae-friendly trait implementations we transport both the
// result information (as the member type) and the failure information (no
// member type). This is very similar to std::enable_if, but we cannot use
@ -161,8 +155,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_void
template<typename _Tp>
struct is_void
: public integral_constant<bool, (__is_void_helper<typename
remove_cv<_Tp>::type>::value)>
: public __is_void_helper<typename remove_cv<_Tp>::type>::type
{ };
template<typename>
@ -244,8 +237,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_integral
template<typename _Tp>
struct is_integral
: public integral_constant<bool, (__is_integral_helper<typename
remove_cv<_Tp>::type>::value)>
: public __is_integral_helper<typename remove_cv<_Tp>::type>::type
{ };
template<typename>
@ -273,8 +265,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_floating_point
template<typename _Tp>
struct is_floating_point
: public integral_constant<bool, (__is_floating_point_helper<typename
remove_cv<_Tp>::type>::value)>
: public __is_floating_point_helper<typename remove_cv<_Tp>::type>::type
{ };
/// is_array
@ -301,8 +292,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_pointer
template<typename _Tp>
struct is_pointer
: public integral_constant<bool, (__is_pointer_helper<typename
remove_cv<_Tp>::type>::value)>
: public __is_pointer_helper<typename remove_cv<_Tp>::type>::type
{ };
/// is_lvalue_reference
@ -337,8 +327,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_member_object_pointer
template<typename _Tp>
struct is_member_object_pointer
: public integral_constant<bool, (__is_member_object_pointer_helper<
typename remove_cv<_Tp>::type>::value)>
: public __is_member_object_pointer_helper<
typename remove_cv<_Tp>::type>::type
{ };
template<typename>
@ -352,8 +342,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_member_function_pointer
template<typename _Tp>
struct is_member_function_pointer
: public integral_constant<bool, (__is_member_function_pointer_helper<
typename remove_cv<_Tp>::type>::value)>
: public __is_member_function_pointer_helper<
typename remove_cv<_Tp>::type>::type
{ };
/// is_enum
@ -422,8 +412,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// __is_nullptr_t (extension).
template<typename _Tp>
struct __is_nullptr_t
: public integral_constant<bool, (__is_nullptr_t_helper<typename
remove_cv<_Tp>::type>::value)>
: public __is_nullptr_t_helper<typename remove_cv<_Tp>::type>::type
{ };
// Composite type categories.
@ -480,8 +469,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_member_pointer
template<typename _Tp>
struct is_member_pointer
: public integral_constant<bool, (__is_member_pointer_helper<
typename remove_cv<_Tp>::type>::value)>
: public __is_member_pointer_helper<typename remove_cv<_Tp>::type>::type
{ };
// Type properties.
@ -567,7 +555,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_signed
template<typename _Tp>
struct is_signed
: public integral_constant<bool, __is_signed_helper<_Tp>::value>
: public __is_signed_helper<_Tp>::type
{ };
/// is_unsigned
@ -650,7 +638,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_destructible
template<typename _Tp>
struct is_destructible
: public integral_constant<bool, (__is_destructible_safe<_Tp>::value)>
: public __is_destructible_safe<_Tp>::type
{ };
// is_nothrow_destructible requires that is_destructible is
@ -698,7 +686,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_nothrow_destructible
template<typename _Tp>
struct is_nothrow_destructible
: public integral_constant<bool, (__is_nt_destructible_safe<_Tp>::value)>
: public __is_nt_destructible_safe<_Tp>::type
{ };
struct __do_is_default_constructible_impl
@ -746,8 +734,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_default_constructible
template<typename _Tp>
struct is_default_constructible
: public integral_constant<bool, (__is_default_constructible_safe<
_Tp>::value)>
: public __is_default_constructible_safe<_Tp>::type
{ };
@ -901,8 +888,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Tp, typename _Arg>
struct __is_direct_constructible
: public integral_constant<bool, (__is_direct_constructible_new<
_Tp, _Arg>::value)>
: public __is_direct_constructible_new<_Tp, _Arg>::type
{ };
// Since default-construction and binary direct-initialization have
@ -953,8 +939,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// is_constructible
template<typename _Tp, typename... _Args>
struct is_constructible
: public integral_constant<bool, (__is_constructible_impl<_Tp,
_Args...>::value)>
: public __is_constructible_impl<_Tp, _Args...>::type
{ };
template<typename _Tp, bool = is_void<_Tp>::value>
@ -1081,24 +1066,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Tp, typename _Up>
class __is_assignable_helper
: public __sfinae_types
{
template<typename _Tp1, typename _Up1>
static decltype(declval<_Tp1>() = declval<_Up1>(), __one())
template<typename _Tp1, typename _Up1,
typename = decltype(declval<_Tp1>() = declval<_Up1>())>
static true_type
__test(int);
template<typename, typename>
static __two __test(...);
static false_type
__test(...);
public:
static constexpr bool value = sizeof(__test<_Tp, _Up>(0)) == 1;
typedef decltype(__test<_Tp, _Up>(0)) type;
};
/// is_assignable
template<typename _Tp, typename _Up>
struct is_assignable
: public integral_constant<bool,
__is_assignable_helper<_Tp, _Up>::value>
: public __is_assignable_helper<_Tp, _Up>::type
{ };
template<typename _Tp, bool = is_void<_Tp>::value>
@ -1292,31 +1277,32 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
bool = __or_<is_void<_From>, is_function<_To>,
is_array<_To>>::value>
struct __is_convertible_helper
{ static constexpr bool value = is_void<_To>::value; };
{ typedef typename is_void<_To>::type type; };
template<typename _From, typename _To>
class __is_convertible_helper<_From, _To, false>
: public __sfinae_types
{
template<typename _To1>
static void __test_aux(_To1);
template<typename _To1>
static void __test_aux(_To1);
template<typename _From1, typename _To1>
static decltype(__test_aux<_To1>(std::declval<_From1>()), __one())
template<typename _From1, typename _To1,
typename = decltype(__test_aux<_To1>(std::declval<_From1>()))>
static true_type
__test(int);
template<typename, typename>
static __two __test(...);
static false_type
__test(...);
public:
static constexpr bool value = sizeof(__test<_From, _To>(0)) == 1;
typedef decltype(__test<_From, _To>(0)) type;
};
/// is_convertible
template<typename _From, typename _To>
struct is_convertible
: public integral_constant<bool,
__is_convertible_helper<_From, _To>::value>
: public __is_convertible_helper<_From, _To>::type
{ };
@ -2041,29 +2027,28 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* Use SFINAE to determine if the type _Tp has a publicly-accessible
* member type _NTYPE.
*/
#define _GLIBCXX_HAS_NESTED_TYPE(_NTYPE) \
template<typename _Tp> \
class __has_##_NTYPE##_helper \
: __sfinae_types \
{ \
template<typename _Up> \
struct _Wrap_type \
{ }; \
\
template<typename _Up> \
static __one __test(_Wrap_type<typename _Up::_NTYPE>*); \
\
template<typename _Up> \
static __two __test(...); \
\
public: \
static constexpr bool value = sizeof(__test<_Tp>(0)) == 1; \
}; \
\
template<typename _Tp> \
struct __has_##_NTYPE \
: integral_constant<bool, __has_##_NTYPE##_helper \
<typename remove_cv<_Tp>::type>::value> \
#define _GLIBCXX_HAS_NESTED_TYPE(_NTYPE) \
template<typename _Tp> \
class __has_##_NTYPE##_helper \
{ \
template<typename _Up> \
struct _Wrap_type \
{ }; \
\
template<typename _Up> \
static true_type __test(_Wrap_type<typename _Up::_NTYPE>*); \
\
template<typename _Up> \
static false_type __test(...); \
\
public: \
typedef decltype(__test<_Tp>(0)) type; \
}; \
\
template<typename _Tp> \
struct __has_##_NTYPE \
: public __has_##_NTYPE##_helper \
<typename remove_cv<_Tp>::type>::type \
{ };
_GLIBCXX_END_NAMESPACE_VERSION

8
libstdc++-v3/testsuite/20_util/bind/ref_neg.cc
View File

@ -30,10 +30,10 @@ void test01()
{
const int dummy = 0;
std::bind(&inc, _1)(0); // { dg-error "no match" }
// { dg-error "rvalue|const" "" { target *-*-* } 1347 }
// { dg-error "rvalue|const" "" { target *-*-* } 1361 }
// { dg-error "rvalue|const" "" { target *-*-* } 1375 }
// { dg-error "rvalue|const" "" { target *-*-* } 1389 }
// { dg-error "rvalue|const" "" { target *-*-* } 1315 }
// { dg-error "rvalue|const" "" { target *-*-* } 1329 }
// { dg-error "rvalue|const" "" { target *-*-* } 1343 }
// { dg-error "rvalue|const" "" { target *-*-* } 1357 }
std::bind(&inc, std::ref(dummy))(); // { dg-error "no match" }
}

2
libstdc++-v3/testsuite/20_util/declval/requirements/1_neg.cc
View File

@ -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 *-*-* } 1871 }
// { dg-error "static assertion failed" "" { target *-*-* } 1857 }
#include <utility>

4
libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc
View File

@ -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 *-*-* } 1613 }
// { dg-error "declaration of" "" { target *-*-* } 1577 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1599 }
// { dg-error "declaration of" "" { target *-*-* } 1563 }

4
libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc
View File

@ -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 *-*-* } 1531 }
// { dg-error "declaration of" "" { target *-*-* } 1495 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 1517 }
// { dg-error "declaration of" "" { target *-*-* } 1481 }

3
libstdc++-v3/testsuite/20_util/reference_wrapper/typedefs-3.cc
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@ -44,7 +44,8 @@ struct S12 : S1, S2 { };
struct S012 : S0, S1, S2 { };
using std::__sfinae_types;
using std::true_type;
using std::false_type;
using std::integral_constant;
using std::remove_cv;