Re: [HACKERS] backend/utils/adt/float.c uses non-existent NAN value

>
> Seems at some point someone decided not to be machine-independent in
> backend/utils/adt/float.c
>
> Redhat 5.2 system with gcc 2.8.1 doesn't define NAN unless _GNU_SOURCE is
> defined first. Although include/utils/dt.h *does* check for NAN (and HUGE_VAL)
> before using them, the float.c doesn't.
>
> What happened?

Don't know exactly - but

the new NUMERIC data type started recently a discussion about
NAN, because I tried to be able to convert NAN from/to
float's, and that started some trouble. I'm not sure how this
went into adt/float.c. At least I think we should fix all the
NAN handling for v6.5.

Jan

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