# Functor_T.h File Reference

`#include "ace/Functor.h"`
`#include "ace/Functor_String.h"`
`#include "ace/Functor_T.inl"`
`#include "ace/Functor_T.cpp"`

Include dependency graph for Functor_T.h:

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## Classes

class | ACE_Command_Callback< RECEIVER, ACTION >
| Defines a class template that allows us to invoke a GOF command style callback to an object without knowing anything about the object except its type. More...
class | ACE_Hash< TYPE >
| Function object for hashing. More...
class | ACE_Pointer_Hash< TYPE >
| Function object for hashing pointers. More...
class | ACE_Equal_To< TYPE >
| Function object for comparing two objects of the given type for equality. More...
class | ACE_Less_Than< TYPE >
| Function object for determining whether the first object of the given type is less than the second object of the same type. More...

## Detailed Description

Id
  Functor_T.h,v 4.19 2005/10/28 16:14:52 ossama Exp

Templatized classes for implementing function objects that are used in various places in ACE. There are currently two major categories of function objects in ACE: GOF Command Pattern objects, and STL-style functors for comparison of container elements. The command objects are invoked via an <execute> method, while the STL-style functors are invoked via an <operator()> method.

Author:
  Chris Gill <cdgill@cs.wustl.edu>

  Based on Command Pattern implementations originally done by

  Carlos O'Ryan <coryan@cs.wustl.edu>

  Douglas C. Schmidt <schmidt@cs.wustl.edu>

  Sergio Flores-Gaitan <sergio@cs.wustl.edu>

  and on STL-style functor implementations originally done by

  Irfan Pyarali <irfan@cs.wustl.edu>