URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [testsuite/] [20_util/] [function/] [7.cc] - Rev 424
Compare with Previous | Blame | View Log
// { dg-options "-std=gnu++0x" } // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu> // // Copyright (C) 2005, 2009 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/>. // 20.7.15 polymorphic function object wrapper #include <functional> #include <testsuite_hooks.h> #include <testsuite_tr1.h> using namespace __gnu_test; bool test __attribute__((unused)) = true; // Put reference_wrappers to function pointers into function<> wrappers void test07() { using std::function; using std::ref; using std::cref; int (*fptr)(float) = truncate_float; function<int(float)> f1(ref(fptr)); VERIFY( f1 ); VERIFY( !!f1 ); VERIFY( !(f1 == 0) ); VERIFY( !(0 == f1) ); VERIFY( f1 != 0 ); VERIFY( 0 != f1 ); // Invocation VERIFY( f1(3.1f) == 3 ); // target_type and target() functions const function<int(float)>& f1c = f1; VERIFY( typeid(int(*)(float)) == f1.target_type() ); VERIFY( f1.target<int(*)(float)>() != 0 ); VERIFY( f1.target<int(*)(float)>() == &fptr ); VERIFY( f1c.target<int(*)(float)>() != 0 ); VERIFY( f1c.target<int(*)(float)>() == &fptr ); function<int(float)> f2(cref(fptr)); VERIFY( f2 ); VERIFY( !!f2 ); VERIFY( !(f2 == 0) ); VERIFY( !(0 == f2) ); VERIFY( f2 != 0 ); VERIFY( 0 != f2 ); // Invocation VERIFY( f2(3.1f) == 3 ); // target_type and target() functions const function<int(float)>& f2c = f2; VERIFY( typeid(int(*)(float)) == f2.target_type() ); VERIFY( f2.target<int(*)(float)>() == 0 ); VERIFY( f2.target<int(* const)(float)>() == &fptr ); VERIFY( f2c.target<int(*)(float)>() != 0 ); VERIFY( f2c.target<int(*)(float)>() == &fptr ); } int main() { test07(); return 0; }