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Diffstat (limited to 'libstdc++-v3/testsuite/tr1/3_function_objects/function/6.cc')
-rw-r--r-- | libstdc++-v3/testsuite/tr1/3_function_objects/function/6.cc | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/tr1/3_function_objects/function/6.cc b/libstdc++-v3/testsuite/tr1/3_function_objects/function/6.cc new file mode 100644 index 00000000000..50bb854a6cd --- /dev/null +++ b/libstdc++-v3/testsuite/tr1/3_function_objects/function/6.cc @@ -0,0 +1,83 @@ +// 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu> +// +// Copyright (C) 2005 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 2, 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 COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// 3.7.2 polymorphic function object wrapper +#include <tr1/functional> +#include <testsuite_hooks.h> +#include <testsuite_tr1.h> + +using namespace __gnu_test; + +bool test __attribute__((unused)) = true; + +struct secret {}; + +struct noncopyable_function_object_type +{ + noncopyable_function_object_type(secret) {} + + int operator()() const { return 42; } + int operator()() { return 17; } + + private: + noncopyable_function_object_type(); + noncopyable_function_object_type(const noncopyable_function_object_type&); + void operator=(const noncopyable_function_object_type&); +}; + +// Put reference_wrappers into function<> wrappers +void test06() +{ + using std::tr1::function; + using std::tr1::ref; + using std::tr1::cref; + + secret password; + noncopyable_function_object_type x(password); + + function<int()> f(ref(x)); + VERIFY( f ); + VERIFY( f() == 17 ); + VERIFY( f.target_type() == typeid(noncopyable_function_object_type) ); + VERIFY( f.target<noncopyable_function_object_type>() == &x ); + + function<int()> g = f; + VERIFY( g ); + VERIFY( g() == 17 ); + VERIFY( g.target_type() == typeid(noncopyable_function_object_type) ); + VERIFY( g.target<noncopyable_function_object_type>() == &x ); + + function<int()> h = cref(x); + VERIFY( h ); + VERIFY( h() == 42 ); + VERIFY( h.target_type() == typeid(noncopyable_function_object_type) ); + VERIFY( h.target<const noncopyable_function_object_type>() == &x ); + VERIFY( h.target<const noncopyable_function_object_type>() == &x ); + + const function<int()>& hc = h; + VERIFY( h.target<noncopyable_function_object_type>() == 0 ); + VERIFY( hc.target<noncopyable_function_object_type>() == &x ); +} + +int main() +{ + test06(); + return 0; +} |