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I need read random microsoft basic files
Message
From
26/06/2006 19:40:56
 
 
To
26/06/2006 04:20:48
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01130452
Message ID:
01131863
Views:
14
>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")
>>
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