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type_traits: (make_signed, make_unsigned): Adjust for enum sizes.

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2007-05-07  Benjamin Kosnik  <bkoz@redhat.com>
            Howard Hinnant  <hhinnant@apple.com>

	* include/std/type_traits: (make_signed, make_unsigned): Adjust
	for enum sizes.	
	* testsuite/20_util/make_unsigned/requirements/typedefs.cc: Move to...
	* testsuite/20_util/make_unsigned/requirements/typedefs-1.cc: ...here.
	* testsuite/20_util/make_unsigned/requirements/typedefs-2.cc: Add,
	compile with -funsigned-char -fshort-enums.
	* testsuite/20_util/make_signed/requirements/typedefs.cc: Move to...
	* testsuite/20_util/make_signed/requirements/typedefs-1.cc: ...here.
	* testsuite/20_util/make_signed/requirements/typedefs-2.cc: Add,
	compile with -funsigned-char -fshort-enums.

	* testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
	Add a temporary xfail to this test for all platforms.


Co-Authored-By: Howard Hinnant <hhinnant@apple.com>

From-SVN: r124500
This commit is contained in:
Benjamin Kosnik 2007-05-07 15:29:57 +00:00 committed by Benjamin Kosnik
parent 4be1caf900
commit ce2e63495d
7 changed files with 169 additions and 16 deletions
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17
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,20 @@
2007-05-07 Benjamin Kosnik <bkoz@redhat.com>
Howard Hinnant <hhinnant@apple.com>
* include/std/type_traits: (make_signed, make_unsigned): Adjust
for enum sizes.
* testsuite/20_util/make_unsigned/requirements/typedefs.cc: Move to...
* testsuite/20_util/make_unsigned/requirements/typedefs-1.cc: ...here.
* testsuite/20_util/make_unsigned/requirements/typedefs-2.cc: Add,
compile with -funsigned-char -fshort-enums.
* testsuite/20_util/make_signed/requirements/typedefs.cc: Move to...
* testsuite/20_util/make_signed/requirements/typedefs-1.cc: ...here.
* testsuite/20_util/make_signed/requirements/typedefs-2.cc: Add,
compile with -funsigned-char -fshort-enums.
* testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
Add a temporary xfail to this test for all platforms.
2007-05-06 Paolo Carlini <pcarlini@suse.de>
* include/std/complex: Add missing extern template declarations.

24
libstdc++-v3/include/std/type_traits
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@ -204,15 +204,15 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
struct __make_unsigned_selector<_Tp, false, false, true>
{
private:
// GNU enums start with sizeof int.
static const bool __b1 = sizeof(_Tp) <= sizeof(unsigned int);
static const bool __b2 = sizeof(_Tp) <= sizeof(unsigned long);
typedef conditional<__b2, unsigned long, unsigned long long> __cond;
// GNU enums start with sizeof short.
typedef unsigned short __smallest;
static const bool __b1 = sizeof(_Tp) <= sizeof(__smallest);
static const bool __b2 = sizeof(_Tp) <= sizeof(unsigned int);
typedef conditional<__b2, unsigned int, unsigned long> __cond;
typedef typename __cond::type __cond_type;
typedef unsigned int __ui_type;
public:
typedef typename conditional<__b1, __ui_type, __cond_type>::type __type;
typedef typename conditional<__b1, __smallest, __cond_type>::type __type;
};
// Primary class template.
@ -301,15 +301,15 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
struct __make_signed_selector<_Tp, false, false, true>
{
private:
// GNU enums start with sizeof int.
static const bool __b1 = sizeof(_Tp) <= sizeof(signed int);
static const bool __b2 = sizeof(_Tp) <= sizeof(signed long);
typedef conditional<__b2, signed long, signed long long> __cond;
// GNU enums start with sizeof short.
typedef signed short __smallest;
static const bool __b1 = sizeof(_Tp) <= sizeof(__smallest);
static const bool __b2 = sizeof(_Tp) <= sizeof(signed int);
typedef conditional<__b2, signed int, signed long> __cond;
typedef typename __cond::type __cond_type;
typedef int __i_type;
public:
typedef typename conditional<__b1, __i_type, __cond_type>::type __type;
typedef typename conditional<__b1, __smallest, __cond_type>::type __type;
};
// Primary class template.

8
libstdc++-v3/testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc
View File

@ -30,8 +30,8 @@ namespace gnu
using std::has_nothrow_copy;
}
// { dg-error "has not been declared" "" { target *-*-* } 27 }
// { dg-error "has not been declared" "" { target *-*-* } 28 }
// { dg-error "has not been declared" "" { target *-*-* } 29 }
// { dg-error "has not been declared" "" { target *-*-* } 30 }
// { dg-error "has not been declared" "" { xfail *-*-* } 27 }
// { dg-error "has not been declared" "" { xfail *-*-* } 28 }
// { dg-error "has not been declared" "" { xfail *-*-* } 29 }
// { dg-error "has not been declared" "" { xfail *-*-* } 30 }

0
libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs.cc → libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-1.cc
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68
libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-2.cc Normal file
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@ -0,0 +1,68 @@
// { dg-options "-std=gnu++0x -funsigned-char -fshort-enums" }
// 2007-05-03 Benjamin Kosnik <bkoz@redhat.com>
//
// Copyright (C) 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
#include <type_traits>
#include <testsuite_hooks.h>
enum test_enum { first_selection };
void test01()
{
bool test __attribute__((unused)) = true;
using std::make_signed;
using std::is_same;
// Positive tests.
typedef make_signed<const int>::type test2_type;
VERIFY( (is_same<test2_type, const int>::value) );
typedef make_signed<const unsigned int>::type test21c_type;
VERIFY( (is_same<test21c_type, const signed int>::value) );
typedef make_signed<volatile unsigned int>::type test21v_type;
VERIFY( (is_same<test21v_type, volatile signed int>::value) );
typedef make_signed<const volatile unsigned int>::type test21cv_type;
VERIFY( (is_same<test21cv_type, const volatile signed int>::value) );
typedef make_signed<const char>::type test22_type;
VERIFY( (is_same<test22_type, const signed char>::value) );
typedef make_signed<volatile wchar_t>::type test23_type;
VERIFY( (is_same<test23_type, volatile signed wchar_t>::value) );
#if 0
// XXX
// When is_signed works for floating points types this should pass
typedef make_signed<volatile float>::type test24_type;
VERIFY( (is_same<test24_type, volatile int>::value) );
#endif
typedef make_signed<test_enum>::type test25_type;
VERIFY( (is_same<test25_type, short>::value) );
}
int main()
{
test01();
return 0;
}

0
libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs.cc → libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs-1.cc
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68
libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs-2.cc Normal file
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@ -0,0 +1,68 @@
// { dg-options "-std=gnu++0x -funsigned-char -fshort-enums" }
// 2007-05-03 Benjamin Kosnik <bkoz@redhat.com>
//
// Copyright (C) 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
#include <type_traits>
#include <testsuite_hooks.h>
enum test_enum { first_selection };
void test01()
{
bool test __attribute__((unused)) = true;
using std::make_unsigned;
using std::is_same;
// Positive tests.
typedef make_unsigned<const unsigned int>::type test2_type;
VERIFY( (is_same<test2_type, const unsigned int>::value) );
typedef make_unsigned<const signed int>::type test21c_type;
VERIFY( (is_same<test21c_type, const unsigned int>::value) );
typedef make_unsigned<volatile signed int>::type test21v_type;
VERIFY( (is_same<test21v_type, volatile unsigned int>::value) );
typedef make_unsigned<const volatile signed int>::type test21cv_type;
VERIFY( (is_same<test21cv_type, const volatile unsigned int>::value) );
typedef make_unsigned<const char>::type test22_type;
VERIFY( (is_same<test22_type, const unsigned char>::value) );
typedef make_unsigned<volatile wchar_t>::type test23_type;
VERIFY( (is_same<test23_type, volatile unsigned wchar_t>::value) );
#if 0
// XXX
// When is_unsigned works for floating points types this should pass
typedef make_unsigned<volatile float>::type test24_type;
VERIFY( (is_same<test24_type, volatile unsigned int>::value) );
#endif
typedef make_unsigned<test_enum>::type test25_type;
VERIFY( (is_same<test25_type, unsigned short>::value) );
}
int main()
{
test01();
return 0;
}