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UPDATE.DOC
Package: CRCSET13 [view]
Upload User: cuilin0620
Upload Date: 2007-01-13
Package Size: 33k
Code Size: 1k
Category:
Kill Virus
Development Platform:
C/C++
- Changes to version 1.0:
- The algorithm used to calculate the initial CRC matrix has been
- optimized to run in logarithmic time instead of linear time, the practical
- upshot of which is that calculations that previously took up to a minute now
- take less than two seconds.
- Supporting C and Turbo Pascal code have been modified to support DOS
- versions below 3.0.
- Changes to version 1.2:
- The previous version of the C code had a minor bug that manifested
- itself only under Microsoft C; the bug has been fixed and conditional
- compilation directives have been introduced to recognize Turbo C (which uses
- searchpath()) or Microsoft C and Quick C (which use _searchenv()) when looking
- for the program name under DOS versions below 3.0.
- The C function isvalidcrc() and the Turbo Pascal function IsValidCRC
- have been replaced with validatecrc() and ValidateCRC respectively. The new
- functions are essentially the same as the old, but return the reason for the
- failure (no memory, file not found, etc) instead of just a success or failure
- code. For compatibility with earlier releases, isvalidcrc() and IsValidCRC
- are still available.