[Bug 68379] New: GCC 3.3.1 TEMPLATE PROBLEMS

[dragon at panix.com]

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http://bugs.kde.org/show_bug.cgi?id=68379     
           Summary: GCC 3.3.1 TEMPLATE PROBLEMS
           Product: kdevelop
           Version: 3.0.0b1
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdevelop-devel at kdevelop.org
        ReportedBy: dragon at panix.com


Version:           3.0.0b1 (using KDE 3.1.4)
Installed from:    SuSE
Compiler:          gcc version 3.3.1 (SuSE Linux)
OS:          Linux (i686) release 2.4.21-99-athlon

This is not so much a KDE problem as it is a GCC problem
However, that are some serious issue about GCC template  handleing

ex. Given the following two output operators
//
//
//
std::ostream& operator <<(std::ostream& os, const Authorization::db_to_info_t& p)
{
  os << "Database Id: " << std::hex << p.first << std::dec
     << "\tCreation Transaction#: " << p.second.creation_transaction_no
     << "\tUpdate Version: " << unsigned(p.second.update_version);

  return os;
}

std::ostream& operator <<(std::ostream& os, const DatabaseDefinitions::db_to_db_info_t& p)
{
  os << p.second->database_name << "="
     << std::hex << p.first << std::dec << "    "
      << p.second->number_of_record << " "
      << p.second->base_record_lenght << " "
      << p.second->eqs_record_lenght << " "
      << p.second->xRefFileName() << " "
      << p.second->security_type.security_type_number << "="
      << p.second->security_type.name << " "
      << p.second->number_of_base_fields << " "
      << p.second->number_of_eqs_fields;

  os << std::endl;

  for (field_list_t::const_iterator i = p.second->fields.begin(); i != p.second->fields.end(); ++i)
    os << (*i)->field_name() << "  ";

  os << std::endl;

  return os;
}

The following lines of code
    std::cout << "Database Definitions" << std::endl;
    for (DatabaseDefinitions::map_t::const_iterator i = Database_Definitions->database_information().begin(); i != Database_Definitions->database_information().end(); ++i)
        std::cout << *i << std::endl;

Generates errors

/home/XMan/Documents/C++/DTN/dtnserver/src/verbose_display.cpp:147: error: ambiguous overload for 'operator<<' in 'std::cout << (&i)->std::_Rb_tree_iterator<_Val, _Ref, _Ptr>::operator*() const [with _Val = std::pair<const long unsigned int, DTN::Database::database_information_s*>, _Ref = const std::pair<const long unsigned int, DTN::Database::database_information_s*>&, _Ptr = const std::pair<const long unsigned int, DTN::Database::database_information_s*>*]()' 

* /home/XMan/Documents/C++/DTN/dtnserver/src/verbose_display.cpp:74: error: candidates are: std::ostream& operator<<(std::ostream&, const std::pair<long unsigned int, DTN::IO::ResponseToAuthorizeDatabase::a_db_authorization>&) 

* /home/XMan/Documents/C++/DTN/dtnserver/src/verbose_display.cpp:106: error: std::ostream& operator<<(std::ostream&, const std::pair<long unsigned int, DTN::Database::database_information_s*>&) 

The GCC template handling functions can't tell the difference between the two operators.