id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6237	unordered_set behaves differently from 1.46 to 1.48	Chris Meyer <cmeyer1969+boost@…>	Daniel James	"The following code runs OK on 1.46 but fails on 1.48. The correct output is ""1"".


{{{
// gcc -Iboost -lstdc++ test1.cpp                                                                                                                               

#include <iostream>
#include <boost/smart_ptr.hpp>
#include <boost/unordered_set.hpp>

namespace ns {

  typedef boost::shared_ptr<class c> cptr;
  typedef boost::unordered_set<cptr> cset;

  class c
  {
  public:
    c() { }
  };

  bool operator==(const cptr &c1, const cptr &c2) { return true; }
}

int main(int argc, char **argv)
{
  ns::cptr bb1(new ns::c());
  ns::cptr bb2(new ns::c());
  ns::cset cs;
  cs.insert(boost::dynamic_pointer_cast<ns::c>(bb1));
  cs.insert(boost::dynamic_pointer_cast<ns::c>(bb1));
  cs.insert(boost::dynamic_pointer_cast<ns::c>(bb2));
  cs.insert(boost::dynamic_pointer_cast<ns::c>(bb2));
  std::cout << ""This should be 1: "" << cs.size() << std::endl;
}

}}}


I'm using Xcode 4.2 / gcc on 10.6.8.

i686-apple-darwin10-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)
"	Bugs	closed	To Be Determined	unordered	Boost 1.48.0	Regression	invalid