OpenEuphoria

RE: arrays/sequences in DOS version

• Posted by Chris Bensler <bensler at mail.com> Apr 17, 2002
• 372 views

Welcome aboard darceman :)

   A sequence IS an array.

EG. (hopefully it doesn't get mangled)
 -- qbasic
 dim somearray(2,2)
 -- euphoria                      Y
 sequence somearray   somearray= {{0,0},-- X
                                  {0,0}}


To break it down further:
 sequence dim2   dim2 = repeat(0,2) -- {0,0}
 sequence dim1   dim1 = repeat(dim2,2) -- {{0,0},{0,0}} (somearray)


Here is the EU equivalent of your bit of code:
 sequence somearray   somearray = repeat(repeat(0,2),2)
 -- the columns are the first dimension (y)
 -- the rows are the second dimension (x)
 for y=1 to 2 do
    for x=1 to 2 do
       somearray[y][x] = x*y
    end for
 end for



Depending on your computers capabilities, you can load any size of 
sequence with any number of dimensions in any form.

I came from a QBasic background, and was also limited by the memory 
size. I've never had a problem in EU. EU automatically handles extended 
memory, and virtual memory, so it will use all onboard RAM, and when it 
runs out of that, it will use a swap file, only limited by the size of 
free space on your harddrive.


Chris

darceman wrote:
> Hi everyone!
> 
> I am brand new to Euphoria and want to port code from QuickBasic for 
> DOS.
> 
> One thing I am unable to determine is the equivalent sequence procedure 
> for a multi-dimemsional array and how to fill it with variables.
> 
> e.g.
> 
> dim somearray(2,2)
> for x=1 to 2
>   for y=1 to 2
>     somearray(x,y)=x*y
>   next y
> next x
> 
> I hope I can build really large arrays/sequences (up to 4 dimensions)
> without encountering the memory limitations of QuickBasic.
> 
> Many thanks.  Looking very much forward to using this great language.
> 
> Darceman
> 
>