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ost::IPV4Mask(3) Library Functions Manual ost::IPV4Mask(3)

NAME

ost::IPV4Mask - Internet addresses used specifically as masking addresses (such as ' 255.255.255.0') are held in the IPV4Mask derived object.

SYNOPSIS

#include <address.h>

Inherits ost::IPV4Address.

Public Member Functions


IPV4Mask (const char *mask)
Create the mask from a null terminated ASCII string such as '255.255.255.128'. IPV4Address & operator= (unsigned long addr)
Allows assignment from the return of functions like inet_addr() or htonl()

Friends


__EXPORT IPV4Host operator& (const IPV4Host &addr, const IPV4Mask &mask)
Masks are usually used to coerce host addresses into a specific router or class domain.

Additional Inherited Members

Detailed Description

Internet addresses used specifically as masking addresses (such as ' 255.255.255.0') are held in the IPV4Mask derived object.

The separate class is used so that C++ type casting can automatically determine when an IPV4Address 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.

Author

David Sugar dyfet@ostel.com

Internet Address Mask such as subnet masks.

Constructor & Destructor Documentation

ost::IPV4Mask::IPV4Mask (const char * mask)

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

Parameters

mask null terminated ASCII mask string.

Member Function Documentation

IPV4Address& ost::IPV4Mask::operator= (unsigned long addr) [inline]

Allows assignment from the return of functions like inet_addr() or htonl()

References ost::IPV4Address::operator=().

Friends And Related Function Documentation

__EXPORT IPV4Host operator& (const IPV4Host & addr, const IPV4Mask & mask) [friend]

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.

Returns

a internet host address that has been masked.

Parameters

addr host address to be masked by subnet.
mask inetnet mask address object to mask by.

Author

Generated automatically by Doxygen for GNU CommonC++ from the source code.
Sun Dec 27 2020 GNU CommonC++