Dear masa and rooters, why this type of error is creeping..and how to avoid ??? *************************************************************************** /usr/include/g++-3/stl_pair.h: In function `bool operator== (const pair<_T1, _T2> &, const pair<_T1, _T2> &) [with _T1 = const int, _T2 = BioSequence]': G__cpp_BioBhasha.C:37: instantiated from here /usr/include/g++-3/stl_pair.h:55: no match for `const BioSequence & == const BioSequence &' /usr/include/g++-3/stl_tree.h:188: candidates are: bool operator== (const _Rb_tree_base_iterator &, const _Rb_tree_base_iterator &) /usr/include/g++-3/stl_pair.h: In function `bool operator< (const pair<_T1, _T2> &, const pair<_T1, _T2> &) [with _T1 = const int, _T2 = BioSequence]': /usr/include/g++-3/stl_algobase.h:412: instantiated from `lexicographical_compare (_InputIter1, _InputIter1, _InputIter2, _InputIter2) [with _InputIter1 = _Rb_tree_iterator<pair<const int, BioSequence>, const pair<const int, BioSequence> &, const pair<const int, BioSequence> *>, _InputIter2 = _Rb_tree_iterator<pair<const int, BioSequence>, const pair<const int, BioSequence> &, const pair<const int, BioSequence> *>]' /usr/include/g++-3/stl_tree.h:776: instantiated from `operator< (const _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> &, const _Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> &) [with _Key = int, _Value = pair<const int, BioSequence>, _KeyOfValue = _Select1st<pair<const int, BioSequence> >, _Compare = less<int>, _Alloc = __malloc_alloc_template<0>]' G__cpp_BioBhasha.C:217: instantiated from here /usr/include/g++-3/stl_pair.h:62: no match for `const BioSequence & < const BioSequence &' make: *** [G__cpp_BioBhasha.o] Error 1 ******************************************************************************* thankyou for the help!. Do I have to do some dummy operator overloading for ==, <, >, * in my BioSequence Class ??? sincerely, Prasad. -- Be Happy, Enjoy Life. with love shiva. ******************************************************************** * If the Problem is Clear, the Solution is Near. ...shiva... * ********************************************************************
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