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type_traits (__is_constructible_helper1): Rename to __is_constructible_helper1... 

2009-12-31  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/type_traits (__is_constructible_helper1): Rename
	to __is_constructible_helper1, tweaked to a specialization of
	__is_constructible_helper.
	(is_constructible): Adjust; minor formatting and stylistic
	changes throughout.
	* testsuite/util/testsuite_tr1.h (test_relationship): Change
	variadic version to an overload of test_property.
	* testsuite/20_util/is_constructible/value.cc: Adjust.
	* 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: r155536
This commit is contained in:
Paolo Carlini 2009-12-31 14:04:23 +00:00 committed by Paolo Carlini
parent 8c7dc6ebc2
commit b0302c68d8
7 changed files with 99 additions and 98 deletions
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16
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,19 @@
2009-12-31 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/type_traits (__is_constructible_helper1): Rename
to __is_constructible_helper1, tweaked to a specialization of
__is_constructible_helper.
(is_constructible): Adjust; minor formatting and stylistic
changes throughout.
* testsuite/util/testsuite_tr1.h (test_relationship): Change
variadic version to an overload of test_property.
* testsuite/20_util/is_constructible/value.cc: Adjust.
* 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.
2009-12-30 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/type_traits: Fix minor formatting nit.

138
libstdc++-v3/include/std/type_traits
View File

@ -173,6 +173,18 @@ namespace std
// Member introspection.
/// is_trivial
template<typename _Tp>
struct is_trivial
: public integral_constant<bool, __is_trivial(_Tp)>
{ };
/// is_standard_layout
template<typename _Tp>
struct is_standard_layout
: public integral_constant<bool, __is_standard_layout(_Tp)>
{ };
/// is_pod
// Could use is_standard_layout && is_trivial instead of the builtin.
template<typename _Tp>
@ -180,10 +192,46 @@ namespace std
: public integral_constant<bool, __is_pod(_Tp)>
{ };
/// is_standard_layout
template<typename _Tp>
struct is_standard_layout
: public integral_constant<bool, __is_standard_layout(_Tp)>
typename add_rvalue_reference<_Tp>::type declval();
template<typename _Tp, typename... _Args>
class __is_constructible_helper
: public __sfinae_types
{
template<typename _Tp1, typename... __Args1>
static decltype(_Tp1(declval<__Args1>()...), __one()) __test(int);
template<typename, typename...>
static __two __test(...);
public:
static const bool __value = sizeof(__test<_Tp, _Args...>(0)) == 1;
};
template<typename _Tp, typename _Arg>
class __is_constructible_helper<_Tp, _Arg>
: public __sfinae_types
{
template<typename _Tp1, typename _Arg1>
static decltype(static_cast<_Tp1>(declval<_Arg1>()), __one())
__test(int);
template<typename, typename>
static __two __test(...);
public:
static const bool __value = sizeof(__test<_Tp, _Arg>(0)) == 1;
};
/// is_constructible
// XXX FIXME
// The C++0x specifications require front-end support, see N2255.
template<typename _Tp, typename... _Args>
struct is_constructible
: public integral_constant<bool,
__is_constructible_helper<_Tp,
_Args...>::__value>
{ };
/// has_trivial_default_constructor
@ -210,12 +258,6 @@ namespace std
: public integral_constant<bool, __has_trivial_destructor(_Tp)>
{ };
/// is_trivial
template<typename _Tp>
struct is_trivial
: public integral_constant<bool, __is_trivial(_Tp)>
{ };
/// has_nothrow_default_constructor
template<typename _Tp>
struct has_nothrow_default_constructor
@ -234,16 +276,14 @@ namespace std
: public integral_constant<bool, __has_nothrow_assign(_Tp)>
{ };
// Relationships between types.
/// is_base_of
template<typename _Base, typename _Derived>
struct is_base_of
: public integral_constant<bool, __is_base_of(_Base, _Derived)>
{ };
template<typename _Tp>
typename add_rvalue_reference<_Tp>::type declval();
// Relationships between types.
template<typename _From, typename _To,
bool = (is_void<_From>::value || is_void<_To>::value
|| is_function<_To>::value || is_array<_To>::value)>
@ -252,10 +292,9 @@ namespace std
&& is_void<_To>::value); };
template<typename _From, typename _To>
struct __is_convertible_helper<_From, _To, false>
class __is_convertible_helper<_From, _To, false>
: public __sfinae_types
{
private:
static __one __test(_To);
static __two __test(...);
@ -263,59 +302,16 @@ namespace std
static const bool __value = sizeof(__test(declval<_From>())) == 1;
};
/// is_convertible
// XXX FIXME
// The C++0x specifications require front-end support, see N2255.
/// is_convertible
template<typename _From, typename _To>
struct is_convertible
: public integral_constant<bool,
__is_convertible_helper<_From, _To>::__value>
{ };
template<typename _To, typename... _From>
struct __is_constructible_helper
: public __sfinae_types
{
private:
template<typename _To1, typename... _From1>
static decltype(_To1(declval<_From1>()...), __one()) __test(int);
template<typename, typename...>
static __two __test(...);
public:
static const bool __value = sizeof(__test<_To, _From...>(0)) == 1;
};
template<typename _To, typename... _From>
struct is_constructible
: public integral_constant<bool,
__is_constructible_helper<_To,
_From...>::__value>
{ };
template<typename _To, typename _From>
struct __is_constructible_helper1
: public __sfinae_types
{
private:
template<typename _To1, typename _From1>
static decltype(static_cast<_To1>(declval<_From1>()), __one())
__test(int);
template<typename, typename>
static __two __test(...);
public:
static const bool __value = sizeof(__test<_To, _From>(0)) == 1;
};
template<typename _To, typename _From>
struct is_constructible<_To, _From>
: public integral_constant<bool,
__is_constructible_helper1<_To, _From>::__value>
{ };
/// is_explicitly_convertible
template<typename _From, typename _To>
struct is_explicitly_convertible
: public is_constructible<_To, _From>
@ -401,9 +397,8 @@ namespace std
/// decay
template<typename _Tp>
struct decay
class decay
{
private:
typedef typename remove_reference<_Tp>::type __remove_type;
public:
@ -434,9 +429,8 @@ namespace std
template<typename _Qualified, typename _Unqualified,
bool _IsConst = is_const<_Qualified>::value,
bool _IsVol = is_volatile<_Qualified>::value>
struct __match_cv_qualifiers
class __match_cv_qualifiers
{
private:
typedef __cv_selector<_Unqualified, _IsConst, _IsVol> __match;
public:
@ -478,12 +472,11 @@ namespace std
template<typename _Tp,
bool _IsInt = is_integral<_Tp>::value,
bool _IsEnum = is_enum<_Tp>::value>
struct __make_unsigned_selector;
class __make_unsigned_selector;
template<typename _Tp>
struct __make_unsigned_selector<_Tp, true, false>
class __make_unsigned_selector<_Tp, true, false>
{
private:
typedef __make_unsigned<typename remove_cv<_Tp>::type> __unsignedt;
typedef typename __unsignedt::__type __unsigned_type;
typedef __match_cv_qualifiers<_Tp, __unsigned_type> __cv_unsigned;
@ -493,9 +486,8 @@ namespace std
};
template<typename _Tp>
struct __make_unsigned_selector<_Tp, false, true>
class __make_unsigned_selector<_Tp, false, true>
{
private:
// With -fshort-enums, an enum may be as small as a char.
typedef unsigned char __smallest;
static const bool __b0 = sizeof(_Tp) <= sizeof(__smallest);
@ -557,12 +549,11 @@ namespace std
template<typename _Tp,
bool _IsInt = is_integral<_Tp>::value,
bool _IsEnum = is_enum<_Tp>::value>
struct __make_signed_selector;
class __make_signed_selector;
template<typename _Tp>
struct __make_signed_selector<_Tp, true, false>
class __make_signed_selector<_Tp, true, false>
{
private:
typedef __make_signed<typename remove_cv<_Tp>::type> __signedt;
typedef typename __signedt::__type __signed_type;
typedef __match_cv_qualifiers<_Tp, __signed_type> __cv_signed;
@ -572,9 +563,8 @@ namespace std
};
template<typename _Tp>
struct __make_signed_selector<_Tp, false, true>
class __make_signed_selector<_Tp, false, true>
{
private:
// With -fshort-enums, an enum may be as small as a char.
typedef signed char __smallest;
static const bool __b0 = sizeof(_Tp) <= sizeof(__smallest);

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 *-*-* } 636 }
// { dg-error "static assertion failed" "" { target *-*-* } 626 }
// { dg-error "instantiated from here" "" { target *-*-* } 30 }
// { dg-excess-errors "In function" }

13
libstdc++-v3/testsuite/20_util/is_constructible/value.cc
View File

@ -28,16 +28,13 @@ void test01()
using namespace __gnu_test;
// Positive tests.
VERIFY( (test_relationship<is_constructible, ExplicitClass,
double&>(true)) );
VERIFY( (test_relationship<is_constructible, ExplicitClass,
int&>(true)) );
VERIFY( (test_property<is_constructible, ExplicitClass, double&>(true)) );
VERIFY( (test_property<is_constructible, ExplicitClass, int&>(true)) );
// Negative tests.
VERIFY( (test_relationship<is_constructible, ExplicitClass,
void*>(false)) );
VERIFY( (test_relationship<is_constructible, ExplicitClass>(false)) );
VERIFY( (test_relationship<is_constructible, ExplicitClass,
VERIFY( (test_property<is_constructible, ExplicitClass, void*>(false)) );
VERIFY( (test_property<is_constructible, ExplicitClass>(false)) );
VERIFY( (test_property<is_constructible, ExplicitClass,
int, double>(false)) );
}

4
libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc
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@ -48,8 +48,8 @@ void test01()
// { dg-error "instantiated from here" "" { target *-*-* } 40 }
// { dg-error "instantiated from here" "" { target *-*-* } 42 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 598 }
// { dg-error "declaration of" "" { target *-*-* } 560 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 588 }
// { dg-error "declaration of" "" { target *-*-* } 552 }
// { dg-excess-errors "At global scope" }
// { dg-excess-errors "In instantiation of" }

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

@ -48,8 +48,8 @@ void test01()
// { dg-error "instantiated from here" "" { target *-*-* } 40 }
// { dg-error "instantiated from here" "" { target *-*-* } 42 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 519 }
// { dg-error "declaration of" "" { target *-*-* } 481 }
// { dg-error "invalid use of incomplete type" "" { target *-*-* } 511 }
// { dg-error "declaration of" "" { target *-*-* } 475 }
// { dg-excess-errors "At global scope" }
// { dg-excess-errors "In instantiation of" }

16
libstdc++-v3/testsuite/util/testsuite_tr1.h
View File

@ -56,8 +56,7 @@ namespace __gnu_test
// For testing tr1/type_traits/extent, which has a second template
// parameter.
template<template<typename, unsigned> class Property,
typename Type,
unsigned Uint>
typename Type, unsigned Uint>
bool
test_property(typename Property<Type, Uint>::value_type value)
{
@ -68,17 +67,17 @@ namespace __gnu_test
}
#ifdef __GXX_EXPERIMENTAL_CXX0X__
template<template<typename...> class Relationship,
typename... Types>
template<template<typename...> class Property, typename... Types>
bool
test_relationship(bool value)
test_property(typename Property<Types...>::value_type value)
{
bool ret = true;
ret &= Relationship<Types...>::value == value;
ret &= Relationship<Types...>::type::value == value;
ret &= Property<Types...>::value == value;
ret &= Property<Types...>::type::value == value;
return ret;
}
#else
#endif
template<template<typename, typename> class Relationship,
typename Type1, typename Type2>
bool
@ -89,7 +88,6 @@ namespace __gnu_test
ret &= Relationship<Type1, Type2>::type::value == value;
return ret;
}
#endif
// Test types.
class ClassType { };