ceph/src/boost/libs/function/test/mem_fun_cxx98.cpp

   1 // Function library
   2
   3 // Copyright (C) 2001-2003 Douglas Gregor
   4
   5 // Use, modification and distribution is subject to the Boost Software
   6 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 // For more information, see http://www.boost.org/
  10
  11
  12 #include <boost/function.hpp>
  13 #include <boost/detail/lightweight_test.hpp>
  14 #include <iostream>
  15 #include <functional>
  16
  17 struct Y {
  18     Y(int y = 0) : y_(y) {}
  19     bool operator==(const Y& rhs) { return y_ == rhs.y_; }
  20 private:
  21     int y_;
  22     };
  23
  24 struct X {
  25   int foo(int);
  26   Y& foo2(Y&) const;
  27 };
  28 int X::foo(int x) { return -x; }
  29 Y& X::foo2(Y& x) const { return x; }
  30
  31 int main()
  32 {
  33     boost::function<int (X*, int)> f;
  34     boost::function<Y& (X*, Y&)> f2;
  35         Y y1;
  36
  37     f = &X::foo;
  38     f2 = &X::foo2;
  39
  40     X x;
  41     BOOST_TEST(f(&x, 5) == -5);
  42     BOOST_TEST(f2(&x, boost::ref(y1)) == y1);
  43
  44     return ::boost::report_errors();
  45 }