orion(dot)SAPserv(dot)Hamburg(dot)dsh(dot)de!wieck(at)sapserv(dot)debis(dot)de writes:
> Seems that only isnan() is defined as part of Posix. But not
> a definition that can force a NAN. So we have to find a
> portable way to define the value NaN for double and float.
> Does anybody know of such a way?
Bruce changed it to defining NAN as (0.0/0.0) if NAN isn't already
defined. This works on FreeBSD. I don't know if it will break on other
systems that don't have NAN already.