Long numbers problem

[Touf]

Does anyone know how can I use "very" long strings ...
I mean that the LONG type variable is not enough !!
In fact , I would like to use number bigger than 32635 ...

[Glenn]

much larger than that. (That number isn't even at the limit of a short INTEGER.)

[Touf]

much longer than an INTEGER

[Dav]

I may not understand what you're asking. If so, I am sorry...

Do you mean you want to get and use a string larger than 32k?

The 32k limit can be overcome by setting up a double buffer to use a 64k string. Something like...

Code:

TYPE DoubleBuffer
   B1 AS STRING * 32000
   B2 AS STRING * 32000
END TYPE

'$DYNAMIC


'make the 64k buffer...

DIM SHARED BigBuffer(0) AS DoubleBuffer

'...

'Grab 64k...

GET #1, , BigBuffer(0)

Now, if you want to use/change the string data in the BigBuffer, you have to use PEEK/POKE to do it, which makes it slow to really do anything very intense.

Code:

DEF SEG = VARSEG(BigBuffer(0))

'To show the first 10 characters in the string...

FOR t = 0 TO 9
  PRINT CHR$(PEEK(t))
NEXT

- Dav

[Touf]

But I didn't understand .... but it seems to be the answer I want !
Can you totaly describe the code please ?

[Meg]

I'm not sure I understand the question. Are you looking to make a long STRING or a long NUMBER? What kind of data are you storing in the variable, and what's it being used for?

*peace*

Meg.

[Touf]

I want to make some calculations with very long NUMBERS

[na_th_an]

How long? Try using LONGs

Code:

DIM a AS LONG
DIM b AS LONG

a = 67655453: b = 987898432
PRINT a + b

If they are not big enough, use Neo's routines.

[Antoni Gual]

Are you trying to win your own prime contest? :rotfl:

Se the projects section, Neo announced recently there the release of his BIGINT library.

[Touf]

absolutly not !

But I mean numbers with thousand figures !