InetMaskAddress Class Reference

[APE Index] [APE Hierarchy] [Headers]


Internet Address Mask such as subnet masks. More...

#include <socket.h>

Inherits: InetAddress

Public Members


Detailed Description

Internet addresses used specifically as masking addresses (such as " 255.255.255.0") are held in the InetMaskAddress derived object. The seperate class is used so that C++ type casting can automatically determine when an InetAddress object is really a mask address object rather than simply using the base class. This also allows manipulative operators for address masking to operate only when presented with a Masked address as well as providing cleaner and safer source.


InetMaskAddress(const char *mask) [public]

Create the mask from a null terminated ASCII string such as "255.255.255.128".

Parameters:
mask null terminated ASCII mask string.

friend InetHostAddress operator&(InetHostAddress &addr, InetMaskAddress &mask) [public]

Masks are usually used to coerce host addresses into a specific router or class domain. This can be done by taking the Inet Host Address object and "and"ing it with an address mask. This operation can be directly expressed in C++ through the & operator.

Parameters:
addr host address to be masked by subnet.
mask inetnet mask address object to mask by.
Returns:
a internet host address that has been masked.

  • Author: David Sugar <dyfet@ostel.com>
  • Documentation generated by dyfet@home.sys on Thu Dec 16 09:54:26 EST 1999
Kdoc