----------------------------------------------------------------
lines 579-625 of file: include/cppad/example/valvector/class.hpp
----------------------------------------------------------------

   {xrst_begin valvector_compare_op}

   The valvector Compare Operators
   ###############################

   Syntax
   ******
   | *y* *op* *x*

   op
   **

   Equality Operators
   ==================
   == , !=

   Ordered Operators
   =================
   < , <= , >= , >

   x
   *
   The operand *x* is a ``const`` valvector.
   If *op* is an equality operator,
   *x* can have any size.
   Otherwise it must be size one.

   y
   *
   The operand *y* is a ``const`` valvector.
   If *op* is an equality operator,
   *y* can have any size.
   Otherwise it must be size one.

   Return
   ******
   The value returned by each of these operators is a bool

   {xrst_toc_hidden
      example/valvector/compare_op.cpp
   }
   Example
   =======
   The file :ref:`valvector_compare_op.cpp-name` is an example and test of the
   valvector compare operators.

   {xrst_end valvector_compare_op}