1. 64-bit numbers
- Posted by tone.skoda at gmx.net
Feb 02, 2003
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)
// 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.
2. Re: 64-bit numbers
>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.
