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How to convert between Decimal and Hexadecimal using VFP
Message
De
17/11/2006 09:14:34
 
 
À
17/11/2006 08:59:11
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 6 SP5
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
Visual FoxPro
Divers
Thread ID:
01170587
Message ID:
01170675
Vues:
9
>
>FUNCTION hexi2deci
>PARAMETER txhex
>lndecimal = 0
>FOR i = LEN(txhex) TO 1 STEP -1
>   lndecimal = lndecimal + (AT(SUBSTR(txhex, i, 1), ;
>	"0123456789ABCDEF") - 1) * 16 ^ (LEN(txhex) - i)
>NEXT
>RETURN lndecimal
>
>
>FUNCTION deci2hexi
>PARAMETER tndec
>RETURN TRANSFORM(ASC(RIGHT(tndec,1))*(256^3)+;
>	ASC(SUBSTR(tndec,3,1))*(256^2)+;
>	ASC(SUBSTR(tndec,2,1))*(256)+ASC(LEFT(tndec,1)))
>
The Hexi2Deci() works, but Deci2Hexi() doesn't. E.g. trying Deci2Hexi("100") produces "808464433".

Another comment: The parameter name suggests that a numerical value is expected as input. However, the routine expects a character type numerical value.
Groet,
Peter de Valença

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