[Bug c++/14830] New: compiler incorrectly diagnoses ambigous operator overload

[iker at research dot att dot com]

// main.cpp

#include <string>

using namespace std;

class Test
{
public:
  Test()
  {
    m_s = "test";
  }
  operator string() const
  {
    return m_s;
  }
  operator float() const
  {
    return 5;
  }
private:
  string m_s;
};

int
main(int argc, char** argv)
{
   Test v;
   string s;
   s = v;
}

********************************************************

> g++ main.cpp -I .  -o test

main.cpp: In function `int main(int, char**)':
main.cpp:32: error: ambiguous overload for `std::string& = Test&' operator
/n/watson/5.1r/i686-pc-linux-gnu/include/c++/3.3/bits/basic_string.h:358: error:
candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>& std::basic_string<_CharT, 
   _Traits, _Alloc>::operator=(const std::basic_string<_CharT, _Traits, 
   _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = 
   std::allocator<char>]
/n/watson/5.1r/i686-pc-linux-gnu/include/c++/3.3/bits/basic_string.h:364: error: 
                  std::basic_string<_CharT, _Traits, _Alloc>& 
   std::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = 
   char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]

********************************************************

-- 
           Summary: compiler incorrectly diagnoses ambigous operator
                    overload
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: iker at research dot att dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14830