1 // { dg-do run { target c++11 } } 2 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu> 3 // 4 // Copyright (C) 2005-2018 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 // Put member pointers into function<> wrappers test05()29void test05() 30 { 31 using std::function; 32 33 X x; 34 x.bar = 17; 35 36 function<int(X&)> frm(&X::bar); 37 VERIFY( frm ); 38 VERIFY( frm(x) == 17 ); 39 VERIFY( typeid(int X::*) == frm.target_type() ); 40 VERIFY( *frm.target<int X::*>() == &X::bar ); 41 42 function<int(X&)> fr(&X::foo); 43 VERIFY( fr ); 44 VERIFY( fr(x) == 1 ); 45 VERIFY( typeid(int (X::*)()) == fr.target_type() ); 46 VERIFY( *fr.target<int (X::*)()>() == &X::foo ); 47 48 function<int(const X&)> frc(&X::foo_c); 49 VERIFY( frc ); 50 VERIFY( frc(x) == 2 ); 51 VERIFY( typeid(int (X::*)() const) == frc.target_type() ); 52 VERIFY( *frc.target<int (X::*)() const >() == &X::foo_c ); 53 54 function<int(volatile X&)> frv(&X::foo_v); 55 VERIFY( frv ); 56 VERIFY( frv(x) == 3 ); 57 VERIFY( typeid(int (X::*)() volatile) == frv.target_type() ); 58 VERIFY( *frv.target<int (X::*)() volatile >() == &X::foo_v ); 59 VERIFY( frv.target<int (X::*)() const volatile>() == 0 ); 60 61 function<int(const volatile X&)> frcv(&X::foo_cv); 62 VERIFY( frcv ); 63 VERIFY( frcv(x) == 4 ); 64 VERIFY( typeid(int (X::*)() const volatile) == frcv.target_type() ); 65 VERIFY( *frcv.target<int (X::*)() const volatile >() == &X::foo_cv ); 66 VERIFY( frcv.target<int (X::*)() const>() == 0 ); 67 68 function<int(X*)> grm(&X::bar); 69 VERIFY( grm ); 70 VERIFY( grm(&x) == 17 ); 71 VERIFY( typeid(int X::*) == grm.target_type() ); 72 VERIFY( *grm.target<int X::*>() == &X::bar ); 73 74 function<int(X*)> gr(&X::foo); 75 VERIFY( gr ); 76 VERIFY( gr(&x) == 1 ); 77 VERIFY( typeid(int (X::*)()) == gr.target_type() ); 78 VERIFY( *gr.target<int (X::*)()>() == &X::foo ); 79 80 function<int(const X*)> grc(&X::foo_c); 81 VERIFY( grc ); 82 VERIFY( grc(&x) == 2 ); 83 VERIFY( typeid(int (X::*)() const) == grc.target_type() ); 84 VERIFY( *grc.target<int (X::*)() const >() == &X::foo_c ); 85 86 function<int(volatile X*)> grv(&X::foo_v); 87 VERIFY( grv ); 88 VERIFY( grv(&x) == 3 ); 89 VERIFY( typeid(int (X::*)() volatile) == grv.target_type() ); 90 VERIFY( *grv.target<int (X::*)() volatile >() == &X::foo_v ); 91 VERIFY( grv.target<int (X::*)() const volatile>() == 0 ); 92 93 function<int(const volatile X*)> grcv(&X::foo_cv); 94 VERIFY( grcv ); 95 VERIFY( grcv(&x) == 4 ); 96 VERIFY( typeid(int (X::*)() const volatile) == grcv.target_type() ); 97 VERIFY( *grcv.target<int (X::*)() const volatile >() == &X::foo_cv ); 98 VERIFY( grcv.target<int (X::*)() const>() == 0 ); 99 } 100 main()101int main() 102 { 103 test05(); 104 return 0; 105 } 106