ceph/src/boost/libs/config/test/boost_no_func_tmp_order.ipp

   1 //  (C) Copyright John Maddock 2001.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org/libs/config for most recent version.
   7
   8 //  MACRO:         BOOST_NO_FUNCTION_TEMPLATE_ORDERING
   9 //  TITLE:         no function template ordering
  10 //  DESCRIPTION:   The compiler does not perform
  11 //                 function template ordering or its function
  12 //                 template ordering is incorrect.
  13 //
  14 //                 template<typename T> void f(T); // #1
  15 //                 template<typename T, typename U> void f(T (*)(U)); // #2
  16 //                 void bar(int);
  17 //                 f(&bar); // should choose #2.
  18
  19
  20 namespace boost_no_function_template_ordering{
  21
  22 template<typename T>
  23 bool f(T)
  24 {
  25    return false;
  26 }
  27
  28 template<typename T, typename U>
  29 bool f(T (*)(U))
  30 {
  31    return true;
  32 }
  33
  34 void bar(int)
  35 {
  36 }
  37
  38 int test()
  39 {
  40    int i = 0;
  41    return f(i) || !f(&bar);
  42 }
  43
  44 }
  45
  46
  47
  48
  49