libstdc++-v3/testsuite/20_util/function/5.cc

   1 // { dg-options "-std=gnu++0x" }
   2 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
   3 //
   4 // Copyright (C) 2005-2013 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 20.7.15 polymorphic function object wrapper
  22 #include <functional>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 using namespace __gnu_test;
  27
  28 bool test __attribute__((unused)) = true;
  29
  30 // Put member pointers into function<> wrappers
  31 void test05()
  32 {
  33   using std::function;
  34
  35   X x;
  36   x.bar = 17;
  37
  38   function<int(X&)> frm(&X::bar);
  39   VERIFY( frm );
  40   VERIFY( frm(x) == 17 );
  41   VERIFY( typeid(int X::*) == frm.target_type() );
  42   VERIFY( *frm.target<int X::*>() == &X::bar );
  43
  44   function<int(X&)> fr(&X::foo);
  45   VERIFY( fr );
  46   VERIFY( fr(x) == 1 );
  47   VERIFY( typeid(int (X::*)()) == fr.target_type() );
  48   VERIFY( *fr.target<int (X::*)()>() == &X::foo );
  49
  50   function<int(const X&)> frc(&X::foo_c);
  51   VERIFY( frc );
  52   VERIFY( frc(x) == 2 );
  53   VERIFY( typeid(int (X::*)() const) == frc.target_type() );
  54   VERIFY( *frc.target<int (X::*)() const >() == &X::foo_c );
  55
  56   function<int(volatile X&)> frv(&X::foo_v);
  57   VERIFY( frv );
  58   VERIFY( frv(x) == 3 );
  59   VERIFY( typeid(int (X::*)() volatile) == frv.target_type() );
  60   VERIFY( *frv.target<int (X::*)() volatile >() == &X::foo_v );
  61   VERIFY( frv.target<int (X::*)() const volatile>() == 0 );
  62
  63   function<int(const volatile X&)> frcv(&X::foo_cv);
  64   VERIFY( frcv );
  65   VERIFY( frcv(x) == 4 );
  66   VERIFY( typeid(int (X::*)() const volatile) == frcv.target_type() );
  67   VERIFY( *frcv.target<int (X::*)() const volatile >() == &X::foo_cv );
  68   VERIFY( frcv.target<int (X::*)() const>() == 0 );
  69
  70   function<int(X*)> grm(&X::bar);
  71   VERIFY( grm );
  72   VERIFY( grm(&x) == 17 );
  73   VERIFY( typeid(int X::*) == grm.target_type() );
  74   VERIFY( *grm.target<int X::*>() == &X::bar );
  75
  76   function<int(X*)> gr(&X::foo);
  77   VERIFY( gr );
  78   VERIFY( gr(&x) == 1 );
  79   VERIFY( typeid(int (X::*)()) == gr.target_type() );
  80   VERIFY( *gr.target<int (X::*)()>() == &X::foo );
  81
  82   function<int(const X*)> grc(&X::foo_c);
  83   VERIFY( grc );
  84   VERIFY( grc(&x) == 2 );
  85   VERIFY( typeid(int (X::*)() const) == grc.target_type() );
  86   VERIFY( *grc.target<int (X::*)() const >() == &X::foo_c );
  87
  88   function<int(volatile X*)> grv(&X::foo_v);
  89   VERIFY( grv );
  90   VERIFY( grv(&x) == 3 );
  91   VERIFY( typeid(int (X::*)() volatile) == grv.target_type() );
  92   VERIFY( *grv.target<int (X::*)() volatile >() == &X::foo_v );
  93   VERIFY( grv.target<int (X::*)() const volatile>() == 0 );
  94
  95   function<int(const volatile X*)> grcv(&X::foo_cv);
  96   VERIFY( grcv );
  97   VERIFY( grcv(&x) == 4 );
  98   VERIFY( typeid(int (X::*)() const volatile) == grcv.target_type() );
  99   VERIFY( *grcv.target<int (X::*)() const volatile >() == &X::foo_cv );
 100   VERIFY( grcv.target<int (X::*)() const>() == 0 );
 101 }
 102
 103 int main()
 104 {
 105   test05();
 106   return 0;
 107 }