ceph/src/boost/libs/range/test/iterator_range_equality_bug.cpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Neil Groves 2014. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 //
   9 // For more information, see http://www.boost.org/libs/range/
  10 //
  11 // As reported in https://groups.google.com/forum/#!msg/boost-developers-archive/6JVNg7ZPb4k/RAlvPUec4MAJ
  12
  13 #include <boost/range/iterator_range_core.hpp>
  14 #include <boost/lambda/lambda.hpp>
  15 #include <boost/algorithm/string.hpp>
  16
  17 namespace boost
  18 {
  19     enum {unnamed};
  20     struct S {
  21         bool operator<(int) const {return false;}
  22         bool operator==(int) const {return false;}
  23     };
  24     template<typename T>
  25     bool foo(T i)
  26     {
  27         return i < unnamed || i == unnamed;
  28     }
  29 }
  30
  31 int main()
  32 {
  33     using boost::lambda::_1;
  34     (void)(_1 == 42);
  35     (void)(42 == _1);
  36
  37     boost::foo(42);
  38     boost::foo(boost::S());
  39 }