function

std::comparison operators

<list>
template <class T, class Allocator>
  bool operator== ( const list<T,Allocator>& x, const list<T,Allocator>& y );
template <class T, class Allocator>
  bool operator< ( const list<T,Allocator>& x, const list<T,Allocator>& y );
template <class T, class Allocator>
  bool operator!= ( const list<T,Allocator>& x, const list<T,Allocator>& y );
template <class T, class Allocator>
  bool operator> ( const list<T,Allocator>& x, const list<T,Allocator>& y );
template <class T, class Allocator>
  bool operator>= ( const list<T,Allocator>& x, const list<T,Allocator>& y );
template <class T, class Allocator>
  bool operator<= ( const list<T,Allocator>& x, const list<T,Allocator>& y );
Global comparison operator functions
These overloaded global operator functions perform the appropriate comparison operation between list containers x and y.

Operations == and != are performed by comparing the elements using algorithm equal.

Operations <, >, <= and >= are performed by using algorithm lexicographical_compare, which requires that the type of the elements (T) has the < operation (less-than) defined between two objects of that type.

These operators are overloaded in header <list>.

Parameters

x, y
list containers, having both the same template parameters (T and Allocator).

Return Value

true if the condition holds, and false otherwise.