Using barin option in r.flow produce segmentation fault

[lucacasagrande]

Using barin input produce a segmentation fault also if the map has got only 1/0 values (no null data).

This is how to replicate the problem:

g.region rast=elevation.10m
v.to.rast input=streams@PERMANENT output=streamTest use=val type=line layer=1 value=1 rows=4096  
r.null map=streamTest null=0
r.report units=me map=streamTest | grep "no data"
r.flow elevin=elevation.10m barin=streamTest skip=37 bound=9432 flout=testvector lgout=testraster

Notice that without the barin option, the process works fine.

[lucacasagrande]

Fixed in 7.svn, 6.4.svn, 6.4.0svn, 6.3.svn.