TR_COMPARE_NETWORK_ADDRESSES (Windows Embedded CE 6.0)
1/6/2010
This macro uses an arbitrary ordering to set a caller-supplied variable to a value indicating whether a given Token Ring address is greater than, less than, or equal to another given Token Ring address.
Syntax
VOID TR_COMPARE_NETWORK_ADDRESSES(
PCHAR _A,
PCHAR _B,
PINT _Result
);
Parameters
- _A
Points to the first network address.
- _B
Points to the second network address.
_Result
Points to a caller-supplied variable in which this macro returns the result of its comparison. The following table shows how _Result relates to the ordering of _A to _B.Value Description < 0
_A is less than _B.
> 0
_A is greater than _B.
= 0
_A equals _B.
Return Value
None.
Remarks
Token Ring network addresses do not have a defined ordering relationship. Consequently, the results of this macro for unequal addresses depend on the argument ordering.
The TR_COMPARE_NETWORK_ADDRESSES macro is defined as follows.
#define TR_COMPARE_NETWORK_ADDRESSES(_A, _B, _Result) \
{ \
if (*(ULONG UNALIGNED *)&(_A)[2] > \
*(ULONG UNALIGNED *)&(_B)[2]) \
{ \
*(_Result) = 1; \
} \
else if (*(ULONG UNALIGNED *)&(_A)[2] < \
*(ULONG UNALIGNED *)&(_B)[2]) \
{ \
*(_Result) = (UINT)-1; \
} \
else if (*(USHORT UNALIGNED *)(_A) > \
*(USHORT UNALIGNED *)(_B)) \
{ \
*(_Result) = 1; \
} \
else if (*(USHORT UNALIGNED *)(_A) < \
*(USHORT UNALIGNED *)(_B)) \
{ \
*(_Result) = (UINT)-1; \
} \
else \
{ \
*(_Result) = 0; \
} \
}
Requirements
| Header | ndis.h |
| Windows Embedded CE | Windows CE .NET 4.0 and later |