libsigcplusplus/tests/test_accum_iter.cc

53 lines
1.1 KiB
C++

#include "testutilities.h"
#include <sigc++/sigc++.h>
#include <sstream>
#include <algorithm>
#include <functional>
#include <cstdlib>
namespace
{
std::ostringstream result_stream;
int ident(int i)
{
return i;
}
template<typename T>
struct min_accum
{
typedef T result_type;
template<class I>
#ifndef SIGC_HAVE_SUN_REVERSE_ITERATOR
typename std::iterator_traits<I>::value_type operator()(I i1, I i2)
#else
typename I::value_type operator()(I i1, I i2)
#endif
{
return *std::min_element(i1, i2);
}
};
} // end anonymous namespace
int main(int argc, char* argv[])
{
auto util = TestUtilities::get_instance();
if (!util->check_command_args(argc, argv))
return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
sigc::signal0<int,min_accum<int> > signal;
signal.connect(sigc::bind(sigc::ptr_fun(ident), 3));
signal.connect(sigc::bind(sigc::ptr_fun(ident), 1));
signal.connect(sigc::bind(sigc::ptr_fun(ident), 42));
result_stream << signal();
util->check_result(result_stream, "1");
return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
}