[GRASSLIST:895] CELL, FCELL, DCELL type...

[Massimiliano Cannata]

I'm trying write a code that use a raster to make
calulation....
so I get the raster cell value (CELL, FCELL, DCELL
depending on the original map) and then i have to
use the math.h function

double pow(double,double)

so, how do I have to cast CELL, FCELL or DCELL to
double?
It seems that

double x;
x = (double) CELL

doesn't work...
more, I have to really do this casting?

Thanks.


--
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Ing.  Massimiliano Cannata
Istituto di Scienze della Terra - SUPSI
C.P. 72 - CH-6952 Canobbio (Ticino, Switzerland)
Tel +41 91 /935 12 25 - Fax +41 91 /935 12 09
eMail: massimiliano.cannata at ist.supsi.ch
Internet: http://www.ist.supsi.ch