Re: Fixed-Point toolbox for octave-forge

[Paul Kienzle]

On May 26, 2004, at 10:42 AM, David Bateman wrote:

> According to Per Persson <address@hidden> (on 05/26/04):
> > On May 25, 2004, at 17:37, David Bateman wrote:
> >
> > > Dear All,
> > >
> > > I've just committed a fixed-point toolbox for octave to octave-forge.
> >
> > David,
> > this is great!
> >
> > I found three problems when compiling on Mac OS X:
> >
> > 1) A bug in OS X's cmath that causes isnan() and isinf() to be
> > "undeclared" will need to be worked around in int/fixed.cc.
> >
> > The following should work (goes right after #include <cmath>):
> > #if defined(__APPLE__) && defined(__MACH__)
> > extern "C" int isnan (double);
> > extern "C" int isinf (double);
> > #endif
> >
> > Maybe configure should test for this bug and define some properly 
> > named
> > macro?
> > AC_TRY_COMPILE([#include <cmath>], [isnan(1.0);],
> > [AC_MSG_RESULT("Pass")], [AC_MSG_RESULT("Fail")])
>
> Ok, for now I've commit your first fix...

I use:

        #include <octave/lo-ieee.h>
        lo_ieee_isnan()

 so I don't need #ifdef's in my code.

Paul Kienzle
address@hidden



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