// -*- c++ -*-
/* Copyright 2002, The libsigc++ Development Team
 *  Assigned to public domain.  Use as you wish without restriction.
 */

#include "testutilities.h"
#include <sigc++/adaptors/hide.h>
#include <sstream>
#include <cstdlib>

namespace
{
std::ostringstream result_stream;

struct foo : public sigc::functor_base
{
  // choose a type that can hold all return values
  typedef int result_type;

  int operator()()
  {
    result_stream << "foo() ";
    return true;
  }

  int operator()(int j)
  {
    result_stream << "foo(int " << j << ") ";
    return 1 + j;
  }
};

struct foo_void : public sigc::functor_base
{
  typedef void result_type;

  void operator()()
  {
    result_stream << "foo_void()";
  }
};

} // end anonymous namespace

namespace sigc { SIGC_FUNCTOR_TRAIT(foo,bool) }

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;

  result_stream << sigc::hide<0>(foo())(1, 2);
  util->check_result(result_stream, "foo(int 2) 3");

  result_stream << sigc::hide<1>(foo())(1, 2);
  util->check_result(result_stream, "foo(int 1) 2");

  result_stream << sigc::hide<-1>(foo())(1);
  util->check_result(result_stream, "foo() 1");

  result_stream << sigc::hide(foo())(1);
  util->check_result(result_stream, "foo() 1");

  sigc::hide(foo_void())(1); // void test
  util->check_result(result_stream, "foo_void()");

  return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
}