libstdc++-v3/testsuite/20_util/is_convertible/value.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // 2009-10-29  Paolo Carlini  <paolo.carlini@oracle.com>
   4 //
   5 // Copyright (C) 2009 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <type_traits>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 void test01()
  27 {
  28   bool test __attribute__((unused)) = true;
  29   using std::is_convertible;
  30   using namespace __gnu_test;
  31
  32   // Positive tests.
  33   VERIFY( (test_relationship<is_convertible, int, int>(true)) );
  34   VERIFY( (test_relationship<is_convertible, int, const int>(true)) );
  35   VERIFY( (test_relationship<is_convertible, volatile int, const int>(true)) );
  36   VERIFY( (test_relationship<is_convertible, int, float>(true)) );
  37   VERIFY( (test_relationship<is_convertible, double, float>(true)) );
  38   VERIFY( (test_relationship<is_convertible, float, int>(true)) );
  39   VERIFY( (test_relationship<is_convertible, int*, const int*>(true)) );
  40   VERIFY( (test_relationship<is_convertible, int*, void*>(true)) );
  41   VERIFY( (test_relationship<is_convertible, int[4], int*>(true)) );
  42   VERIFY( (test_relationship<is_convertible, float&, int>(true)) );
  43   VERIFY( (test_relationship<is_convertible, int, const int&>(true)) );
  44   VERIFY( (test_relationship<is_convertible, const int&, int>(true)) );
  45   VERIFY( (test_relationship<is_convertible, float, const int&>(true)) );
  46   VERIFY( (test_relationship<is_convertible, int(int), int(*)(int)>(true)) );
  47   VERIFY( (test_relationship<is_convertible, int(&)(int), int(*)(int)>(true)) );
  48   VERIFY( (test_relationship<is_convertible, EnumType, int>(true)) );
  49   VERIFY( (test_relationship<is_convertible, ClassType, ClassType>(true)) );
  50   VERIFY( (test_relationship<is_convertible, DerivedType, ClassType>(true)) );
  51   VERIFY( (test_relationship<is_convertible, DerivedType*, ClassType*>(true)) );
  52   VERIFY( (test_relationship<is_convertible, DerivedType&, ClassType&>(true)) );
  53
  54   VERIFY( (test_relationship<is_convertible, const int, const int&>(true)) );
  55
  56   VERIFY( (test_relationship<is_convertible, void, void>(true)) );
  57   VERIFY( (test_relationship<is_convertible, const void, void>(true)) );
  58   VERIFY( (test_relationship<is_convertible, void, volatile void>(true)) );
  59   VERIFY( (test_relationship<is_convertible, double&, ExplicitClass>(true)) );
  60
  61   // Negative tests.
  62   VERIFY( (test_relationship<is_convertible, const int*, int*>(false)) );
  63   VERIFY( (test_relationship<is_convertible, int*, float*>(false)) );
  64   VERIFY( (test_relationship<is_convertible, const int[4], int*>(false)) );
  65   VERIFY( (test_relationship<is_convertible, int[4], int[4]>(false)) );
  66   VERIFY( (test_relationship<is_convertible, const int&, int&>(false)) );
  67   VERIFY( (test_relationship<is_convertible, float&, int&>(false)) );
  68   VERIFY( (test_relationship<is_convertible, float, volatile int&>(false)) );
  69   VERIFY( (test_relationship<is_convertible, int(int), int(int)>(false)) );
  70   VERIFY( (test_relationship<is_convertible, int(int), int(*)(void)>(false)) );
  71   VERIFY( (test_relationship<is_convertible, int(*)(int),
  72                                              int(&)(int)>(false)) );
  73   VERIFY( (test_relationship<is_convertible, int, EnumType>(false)) );
  74   VERIFY( (test_relationship<is_convertible, int, ClassType>(false)) );
  75   VERIFY( (test_relationship<is_convertible, ClassType, DerivedType>(false)) );
  76   VERIFY( (test_relationship<is_convertible, ClassType*,
  77                                              DerivedType*>(false)) );
  78   VERIFY( (test_relationship<is_convertible, ClassType&,
  79                                              DerivedType&>(false)) );
  80
  81   VERIFY( (test_relationship<is_convertible, void, int>(false)) );
  82   VERIFY( (test_relationship<is_convertible, void, float>(false)) );
  83   VERIFY( (test_relationship<is_convertible, void, int(*)(int)>(false)) );
  84
  85   // C++0x
  86   VERIFY( (test_relationship<is_convertible, int, void>(false)) );
  87   VERIFY( (test_relationship<is_convertible, int[4], void>(false)) );
  88
  89   VERIFY( (test_relationship<is_convertible, int, int&>(false)) );
  90   VERIFY( (test_relationship<is_convertible, float,
  91                                              volatile float&>(false)) );
  92   VERIFY( (test_relationship<is_convertible, const volatile int,
  93                                              const volatile int&>(false)) );
  94   VERIFY( (test_relationship<is_convertible, volatile int,
  95                                              volatile int&>(false)) );
  96   VERIFY( (test_relationship<is_convertible, int(int), int(&)(int)>(false)) );
  97
  98   VERIFY( (test_relationship<is_convertible, int&, ExplicitClass>(false)) );
  99   VERIFY( (test_relationship<is_convertible, void*, ExplicitClass>(false)) );
 100 }
 101
 102 int main()
 103 {
 104   test01();
 105   return 0;
 106 }