OpenEuphoria

Re: Help: LongLong C func return value (not piano lessons)

• Posted by Bernie Ryan <xotron at bluefrog.com> Mar 01, 2006
• 426 views

Al Getz wrote:
> 
> Hello there,
> 
> 
> I've called countless C function in dll's and got a long or ulong
> return value, but now i need to get a longlong value returned.
> Any way to do this in Euphoria?
> 
> Here's the C function:
> 
>
> ---------------------------------------------------------------------------------
> LONGLONG Int32x32To64(
>     LONG  Multiplier,	// 1st signed 32-bit integer for the multiplication
>     LONG  Multiplicand 	// 2nd signed 32-bit integer for the multiplication
>    );
> 
> Please note that the function's return value is a 64-bit value,
>   not a LARGE_INTEGER structure.
>
> ---------------------------------------------------------------------------------
> 
> This function takes two 32 bit numbers and multiplies them, then returns
> the 64 bit value as a 'value', not as a structure of two 32 bit values
> (ie not a pointer).
> 
> If not in raw Euphoria, then perhaps some suggestions for some
> machine code? (Intel based please)
> The machine code would have to access this function (link to it,
> NOT do the multiplication itself), and NOT in a dll where the C func
> can be called and return value poked into memory.  Thanks.
> 
> 
> Al
> 
> 
> My bumper sticker: "I brake for LED's"

Al:

  How about defining the return as a C_DOUBLE which is 8 bytes ?
 
Bernie

My files in archive:
WMOTOR, XMOTOR, W32ENGIN, MIXEDLIB, EU_ENGIN, WIN32ERU, WIN32API 

Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan