[PATCH] Limit to 4 the number of cylinders shown in the data frame

[Linus Torvalds]

On Wed, Jan 2, 2013 at 1:14 PM, Dirk Hohndel <dirk at hohndel.org> wrote:
>
> If the user has air integration, then start.mbar will be 0.
>
> We have a function cylinder_nodata(cylinder_t *cyl) in equipment.c that
> you should call instead.

That's not the only case where it incorrectly uses start.mbar.

print_tanks() itself also does

  cyl_press= get_pressure_units(dive->cylinder[n].start.mbar, &unit_press);

and it should do something like

    unsigned int start = dive->cylinder[n].start.mbar ? :
dive->cylinder[n].sample_start.mbar;

instead (same for ending pressure too, of course).

In fact, we should probably add some nice helper function for getting
the pressures. We have that code in both divelist.c and statistics.c..

               Linus