116 lines
4.5 KiB
C++
116 lines
4.5 KiB
C++
// { dg-do run { target c++11 } }
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//
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// Copyright (C) 2008-2016 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <type_traits>
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#include <testsuite_hooks.h>
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#define JOIN( X, Y ) DO_JOIN( X, Y )
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#define DO_JOIN( X, Y ) DO_JOIN2(X,Y)
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#define DO_JOIN2( X, Y ) X##Y
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#define COMMON_TYPE_TEST_1(type1, uid) \
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typedef common_type<type1>::type JOIN(test_t,uid); \
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VERIFY( (is_same<JOIN(test_t,uid), JOIN(test_t,uid)>::value) ); \
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typedef common_type<const type1>::type JOIN(test_t,JOIN(uid,c)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,c)), \
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JOIN(test_t,JOIN(uid,c))>::value) ); \
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typedef common_type<volatile type1>::type JOIN(test_t,JOIN(uid,v)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,v)), \
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JOIN(test_t,JOIN(uid,v))>::value) ); \
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typedef common_type<const volatile type1>::type JOIN(test_t,JOIN(uid,cv)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,cv)), \
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JOIN(test_t,JOIN(uid,cv))>::value) ); \
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typedef common_type<type1 &>::type JOIN(test_t,JOIN(uid,l)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,l)), \
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JOIN(test_t,JOIN(uid,l))>::value) ); \
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typedef common_type<const type1 &>::type JOIN(test_t,JOIN(uid,lc)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,lc)), \
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JOIN(test_t,JOIN(uid,lc))>::value) ); \
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typedef common_type<volatile type1 &>::type JOIN(test_t,JOIN(uid,lv)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,lv)), \
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JOIN(test_t,JOIN(uid,lv))>::value) ); \
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typedef common_type<const volatile type1 &>::type JOIN(test_t,JOIN(uid,lcv)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,lcv)), \
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JOIN(test_t,JOIN(uid,lcv))>::value) ); \
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typedef common_type<type1 &&>::type JOIN(test_t,JOIN(uid,r)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,r)), \
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JOIN(test_t,JOIN(uid,r))>::value) ); \
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typedef common_type<const type1 &&>::type JOIN(test_t,JOIN(uid,rc)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,rc)), \
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JOIN(test_t,JOIN(uid,rc))>::value) ); \
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typedef common_type<volatile type1 &&>::type JOIN(test_t,JOIN(uid,rv)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,rv)), \
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JOIN(test_t,JOIN(uid,rv))>::value) ); \
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typedef common_type<const volatile type1 &&>::type JOIN(test_t,JOIN(uid,rcv)); \
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VERIFY( (is_same<JOIN(test_t,JOIN(uid,rcv)), \
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JOIN(test_t,JOIN(uid,rcv))>::value) )
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struct A { };
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struct B : A { };
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void test01()
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{
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using std::common_type;
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using std::is_same;
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// Positive tests.
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COMMON_TYPE_TEST_1(int, 1);
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COMMON_TYPE_TEST_1(double, 2);
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COMMON_TYPE_TEST_1(A, 3);
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COMMON_TYPE_TEST_1(B, 4);
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}
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#define COMMON_TYPE_TEST_2_IMPL(type1, type2, type3, uid) \
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typedef common_type<type1, type2>::type JOIN(JOIN(test, uid),_t1); \
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typedef common_type<type2, type1>::type JOIN(JOIN(test, uid),_t2); \
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VERIFY( (is_same<JOIN(JOIN(test, uid),_t1), type3>::value) ); \
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VERIFY( (is_same<JOIN(JOIN(test, uid),_t2), type3>::value) )
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#define NO_CV
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#define COMMON_TYPE_TEST_2(cv_qual, type1, type2, type3, uid) \
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COMMON_TYPE_TEST_2_IMPL(cv_qual type1, type2, type3, uid); \
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COMMON_TYPE_TEST_2_IMPL(cv_qual type1 &, type2, type3, JOIN(uid,l)); \
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COMMON_TYPE_TEST_2_IMPL(cv_qual type1 &&, type2, type3, JOIN(uid,r))
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#define COMMON_TYPE_TEST_ALL_2(type1, type2, type3, uid) \
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COMMON_TYPE_TEST_2(NO_CV, type1, type2, type3, uid); \
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COMMON_TYPE_TEST_2(const, type1, type2, type3, uid); \
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COMMON_TYPE_TEST_2(volatile, type1, type2, type3, uid); \
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COMMON_TYPE_TEST_2(const volatile, type1, type2, type3, uid)
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void test02()
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{
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using std::common_type;
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using std::is_same;
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COMMON_TYPE_TEST_ALL_2(int, int, int, 1);
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COMMON_TYPE_TEST_ALL_2(int, double, double, 2);
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COMMON_TYPE_TEST_2(NO_CV, A, A, A, 3);
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COMMON_TYPE_TEST_2(const, A, A, A, 4);
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COMMON_TYPE_TEST_2(NO_CV, B, A, A, 5);
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}
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int main()
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{
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test01();
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test02();
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return 0;
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}
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