UBI EasyCoder 201 IISA Instrukcja Obsługi Pobierz pdf (Strona 63)

Intermec Fingerprint 6.13 – Programmer's Guide

6. FILE SYSTEM, cont'd.

10. Arrays, cont'd.

CSUM

The checksum for string arrays can be calculated according to one

of two different algorithms (LRC or DRC) and returned by means

of the CSUM statement.

In this example, the checksum of a string array is calculated

according both to the LRC (Logitudinal Redundancy Check) and

the DRC (Diagonal Redundancy Check) algorithms:

10 FOR Q%=0 TO 3

20 A$=STR$(Q%)

30 ARRAY$(Q%)="Element No. "+A$

40 NEXT

50 CSUM 1,ARRAY$,B%:PRINT "LRC checksum: ";B%

60 CSUM 2,ARRAY$,C%:PRINT "DRC checksum: ";C%

RUN

Yields:

LRC checksum: 0

DRC checksum: 197

Note!

Do not confuse CSUM with CHECKSUM,

see chapter 6.9.

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UBI EasyCoder 201 IISA Instrukcja Obsługi Strona 63