3.0.1 release?

[John W. Eaton]

On  9-Apr-2008, Michael Goffioul wrote:

| On Wed, Apr 9, 2008 at 1:51 AM, John W. Eaton <jwe at bevo.che.wisc.edu> wrote:
| >  I suppose we could write something like
| >
| >   double ip;
| >   return modf (x, &ip) == 0.0 ? x : (x > 0 ? floor (x + 0.5) : ceil (x - 0.5));
| >
| >  Is there a better (and still portable) way to determine whether a
| >  double value is an integer?
| 
| The following code seems to work fine:
| 
|   if (x >= 0)
|     {
|       double y = floor (x);
| 
|       if ((x - y) >= 0.5)
|         y += 1.0;
| 
|       return y;
|     }
|   else
|     {
|       double y = ceil (x);
| 
|       if ((y - x) >= 0.5)
|         y -= 1.0;
| 
|       return y;
|     }

I applied the patch you sent in a mail off the list.

| This is taken from gnulib:round.c (I guess it's no problem to grab
| some code from GPL project to put it into another GPL
| project). Running the test suite does not seem to return new
| problems.

It is OK.  If it is significant, we should note the origin.

We should pobably be using more code from gnulib, but not just by cut
and paste.  Doing that requires some extra Makefile effort.

jwe