Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
I need read random microsoft basic files
Message
De
26/06/2006 19:40:56
 
 
À
26/06/2006 04:20:48
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
01130452
Message ID:
01131863
Vues:
15
>No success.
>
>In RANDOM basic file there is a value of CHR(0xD4)+CHR(0x08)+CHR(0x03)+CHR(0x85) for a price, that it sees in screen as 16.37931061
>
>CTOBIN() can't help me.
>Thanks.
>

Then it is not a IEEE single-precision format.

the single-precision format for 16.37931061 it is
CHR(0xD4)+CHR(0x08)+CHR(0x83)+CHR(0x41)
>>>I need read ramdom Microsoft basic files, with binary numeric fields.
>>>I need some VFP code routine that emulate the CVS(), CVD() basic functions.
>>>
>>>Thanks.
>>
>>
>>On VFP9:
>>
>>*CVD()
>>* correct
>>CTOBIN(8bytes,"BRS")
>>* uses
>>CTOBIN(8bytes,"BS")
>>
>>
>>I hope this bug will be fixed on SP2.
>>
>>
>>* CVS and CVD
>>CTOBIN(4or8bytes,"NRS")
>>
>>
>>Remember, VFP doesn't support 32bit floating point (single),
>>then the conversion to double can add a rounding error.
>>
>>example
>>
>>* double
>>? CTOBIN(0H+BINTOC(0.1E0,"BRS"),"NRS")
>>
>>* single
>>? CTOBIN(0H+BINTOC(0.1E0,"fRS"),"NRS")
>>
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform