Re: new module 'isnan-nolibm'

[Bruno Haible]

Ben Pfaff asked:
> >     * lib/isnan.h: New file.
> Could/should this be merged into math_.h, so that there's no need
> for an additional #include "isnan.h"?

If many other modules want isnan() without libm, it would make sense.

If only *printf routines need it - and that's the current hypothesis -,
then it's better as a separate file, since it avoids confusion with code
that wants the "real" isnan() function.

Bruno