| // { dg-do compile { target c++11 } } |
| |
| // 2007-05-03 Benjamin Kosnik <bkoz@redhat.com> |
| // |
| // Copyright (C) 2007-2021 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 3, 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 COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <type_traits> |
| |
| enum test_enum { first_selection }; |
| |
| void test01() |
| { |
| using std::make_signed; |
| using std::is_same; |
| using std::is_signed; |
| using std::is_volatile; |
| |
| // Positive tests. |
| typedef make_signed<const int>::type test2_type; |
| static_assert( is_same<test2_type, const int>::value, |
| "make_signed<const int>" ); |
| |
| typedef make_signed<const unsigned int>::type test21c_type; |
| static_assert( is_same<test21c_type, const signed int>::value, |
| "make_signed<const unsigned int>" ); |
| |
| typedef make_signed<volatile unsigned int>::type test21v_type; |
| static_assert( is_same<test21v_type, volatile signed int>::value, |
| "make_signed<volatile unsigned int>" ); |
| |
| typedef make_signed<const volatile unsigned int>::type test21cv_type; |
| static_assert( is_same<test21cv_type, const volatile signed int>::value, |
| "make_signed<const volatile unsigned int>" ); |
| |
| typedef make_signed<const char>::type test22_type; |
| static_assert( is_same<test22_type, const signed char>::value, |
| "make_signed<const char>" ); |
| |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| typedef make_signed<volatile wchar_t>::type test23_type; |
| static_assert( is_signed<test23_type>::value |
| && is_volatile<test23_type>::value |
| && sizeof(test23_type) == sizeof(volatile wchar_t), |
| "make_signed<volatile wchar_t>" ); |
| #endif |
| |
| // Chapter 48, chapter 20. Smallest rank such that new signed type same size. |
| typedef make_signed<test_enum>::type test24_type; |
| static_assert( is_signed<test24_type>::value, |
| "make_signed<test_enum> makes signed type" ); |
| static_assert( sizeof(test24_type) == sizeof(test_enum), |
| "make_signed<test_enum> makes type of same size" ); |
| |
| #ifndef __STRICT_ANSI__ |
| // GNU Extensions. |
| #ifdef _GLIBCXX_USE_INT128 |
| typedef make_signed<unsigned __int128>::type test25_type; |
| static_assert( is_same<test25_type, __int128>::value, |
| "make_signed<unsigned __int128>" ); |
| |
| typedef make_signed<__int128>::type test26_type; |
| static_assert( is_same<test26_type, __int128>::value, |
| "make_signed<__int128>" ); |
| #endif |
| #endif |
| } |