error :template with c linkage error in qt
 template<typename _Key, typename _Compare, typename _Alloc>
    
inline bool

    operator<(const multiset<_Key, _Compare, _Alloc>& __x,
	      const multiset<_Key, _Compare, _Alloc>& __y)

    {
 return __x._M_t < __y._M_t;

 }
error :template with c linkage error in qt
===

 template<typename _Key, typename _Compare, typename _Alloc>
    
inline bool

    operator<(const multiset<_Key, _Compare, _Alloc>& __x,
	      const multiset<_Key, _Compare, _Alloc>& __y)

    {
 return __x._M_t < __y._M_t;

 }