[gmpi] Re: Decision Time: 8.3

>If you use floats to represent ints, you
> don't need to be exact.

??????!!!!!!!

Sounds a bit bug-prone? (non-exact conversions).  I figure if we have to
support several datatypes anyhow, may as well have a genuine integer.

Best Regards,
Jeff

----- Original Message ----- 
From: "Tim Hockin" <thockin@xxxxxxxxxx>
To: <gmpi@xxxxxxxxxxxxx>
Sent: Tuesday, September 16, 2003 10:54 AM
Subject: [gmpi] Re: Decision Time: 8.3


> On Mon, Sep 15, 2003 at 05:00:29PM -0600, Mike Berry wrote:
> > > Agreed, but I also think that int should be collapsed into one
floating
> > > point type, I feel there is some extra simplicity from handling
integer
> > > values as a hinted float type, eg. automation, interpolation etc. I
dont
> > > have any religious convition about it though :)
> > >
> >
> > The collapse has a fundamental problem, which is that the range of the
> > int is larger than the range of the float. What I mean by this is that
> > 0x7FFFFFFF can be represented exactly by a 32 bit int, but cannot be
> > represented exactly by a 32 bit float. So the use of floats for ints
> > only works if the mantissa of the float is >= in size to the int. So
> > doubles would work for 32 bit ints, but not 64 bit one. I think that we
> > still need an int type.
>
> Devils' advocate: round or use floor() or something faster (for x86 there
is
> a fast cast lib that works well) .  If you use floats to represent ints,
you
> don't need to be exact.
>
> Tim
>
> ----------------------------------------------------------------------
> Generalized Music Plugin Interface (GMPI) public discussion list
> Participation in this list is contingent upon your abiding by the
> following rules:  Please stay on topic.  You are responsible for your own
> words.  Please respect your fellow subscribers.  Please do not
> redistribute anyone else's words without their permission.
>
> Archive: http://www.freelists.org/archives/gmpi
> Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe
>
>


----------------------------------------------------------------------
Generalized Music Plugin Interface (GMPI) public discussion list
Participation in this list is contingent upon your abiding by the
following rules:  Please stay on topic.  You are responsible for your own
words.  Please respect your fellow subscribers.  Please do not
redistribute anyone else's words without their permission.

Archive: http://www.freelists.org/archives/gmpi
Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe

Other related posts: