template< class T, class Alloc >
bool operator==( const vector<T,Alloc>& lhs,
const vector<T,Alloc>& rhs ); (1) template< class T, class Alloc >
bool operator!=( const vector<T,Alloc>& lhs,
const vector<T,Alloc>& rhs ); (2) template< class T, class Alloc >
bool operator<( const vector<T,Alloc>& lhs,
const vector<T,Alloc>& rhs ); (3) template< c