OpenEuphoria

Re: 64-bit numbers

• Posted by Elliott Sales de Andrade <quantum_analyst at hotmail.com> Feb 02, 2003
• 546 views

>From: tone.skoda at gmx.net
>Subject: 64-bit numbers
>
>
>I don't know what why is this not working.
>
>I get this:
>valseq = {129,238,123,1,0,0,0,0}
>val = 0.000000
>
>Code:
>
>atom ptr, val
>sequence valseq
>
>--Allocate
>ptr = allocate (8)
>
>-- Here I send message to C program which will
>-- write into ptr.
>....
>
>-- Read what C program has written into our buffer:
>valseq = peek ({ptr, 8})
>val = float64_to_atom (valseq)
>

It's not a double.....

>
>// C code which writes into
>// buffer which was allocated in Euphoria program.
>LONGLONG llPlayback; //64-bit value
>int address_data_size = 8;
>llPlayback = 24899201;
>WriteProcessMemory(
>           hCallerProcess,
>          (LPVOID) address,
>           &llPlayback,
>           address_data_size,
>           &bytesWritten);
>
>
>Maybe I should divide 64-bit number into two 32-bit numbers. How would I do
>that? In Euphoria or C.

  Try just two peek4's and put it in a sequence... Supposedly atoms can hold 
64-bit integer numbers, but you may want to ask Robert Craig first.