99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
/* Copyright 2002, The libsigc++ Development Team
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* Assigned to public domain. Use as you wish without restriction.
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*/
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#include "testutilities.h"
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#include <sstream>
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#include <cstdlib>
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#include <sigc++/adaptors/bind.h>
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#include <sigc++/adaptors/compose.h>
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#include <sigc++/functors/mem_fun.h>
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#include <sigc++/functors/ptr_fun.h>
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namespace
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{
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std::ostringstream result_stream;
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class trackable {};
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struct A : public trackable { A() {} };
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template <class T_type, bool I_derived = std::is_base_of<trackable,T_type>::value>
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struct with_trackable;
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template <class T_type>
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struct with_trackable<T_type,false>
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{
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static void perform(const T_type&)
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{
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result_stream << "other ";
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}
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};
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template <class T_type>
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struct with_trackable<T_type,true>
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{
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static void perform(const T_type&)
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{
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result_stream << "trackable ";
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}
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static void perform(T_type*)
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{
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result_stream << "trackable* ";
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}
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static void perform(const T_type*)
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{
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result_stream << "const trackable* ";
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}
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};
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struct print
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{
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void operator()(int i) const
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{
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result_stream << "int: " << i << " ";
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}
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template <class T>
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void operator()(const T& t) const
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{
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with_trackable<T>::perform(t);
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}
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};
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void foo(int, int, int)
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{}
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void bar(int)
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{}
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} // end anonymous namespace
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int main(int argc, char* argv[])
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{
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auto util = TestUtilities::get_instance();
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if (!util->check_command_args(argc, argv))
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return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
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int i = 1;
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int j = 2;
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int k = 3;
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A a;
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result_stream << "hit all targets: ";
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sigc::visit_each(print(), sigc::compose(sigc::bind(sigc::ptr_fun3(&foo), std::ref(a), i), sigc::ptr_fun1(&bar)));
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util->check_result(result_stream, "hit all targets: other trackable int: 1 other ");
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result_stream << "hit all ints: ";
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sigc::visit_each_type<int>(print(), sigc::compose(sigc::bind(sigc::ptr_fun3(&foo), std::ref(a), j),sigc::ptr_fun1(&bar)));
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util->check_result(result_stream, "hit all ints: int: 2 ");
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result_stream << "hit all trackable: ";
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sigc::visit_each_type<trackable>(print(), sigc::compose(sigc::bind(sigc::ptr_fun3(&foo), std::ref(a), k),sigc::ptr_fun1(&bar)));
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util->check_result(result_stream, "hit all trackable: trackable ");
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return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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