[GRASS-dev] r.mapcalc: verbose output for eval() function?

[Hamish]

Markus wrote:
> I am trying to see if an eval() function in my r.mapcalc
> script does what it should. Is there a way to activate a
> "verbose" mode which spits out for each pixel operation the
> values of the used variables?


r.what for all layers in the calculation at a given test coord,
do the calc by hand, see if it matches? repeat until confident.


?,
Hamish