[Gsll-devel] Typo/bug in histogram.lisp's grid:copy

I have been spending enjoyable time with gsll's (and gsl's) histogram routines.

A small bug in the code popped up. In histogram/histogram.lisp the grid:copy method calls histo-copy and histo-clone. The arguments in those calls are incorrect. This is what the method should look like:

(defmethod grid:copy ((source histogram) &key destination &allow-other-keys) (if destination (histo-copy source destination) (histo-clone source)))

In the original, source and destination were swapped.

The same fix applies to the method that specializes on histogram2d.

Mirko