deque header

  is a C++ Standard Library. It is responsible for defining the deque class template.

namespace std {

Comparison Operators
template class deque;

template bool operator==(const deque &, const deque &);

template bool operator<(const deque &, const deque &);

template bool operator!=(const deque &, const deque &);

template bool operator >=(const deque &, const deque &);

template bool operator <=(const deque &, const deque &);

template<typename T, typename Alloc> bool operator >(const deque<T, Alloc> &, const deque<T, Alloc> &);

deque class
template<typename T, typename Alloc=allocator<T> > class deque {

}; }