On Mon, Sep 29, 2008 at 9:54 PM, David Cournapeau < [EMAIL PROTECTED]> wrote:
> Charles R Harris wrote: > > > > > > On Mon, Sep 29, 2008 at 9:02 PM, David Cournapeau > > <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > wrote: > > > > Charles R Harris wrote: > > > > > > So the proposition is, sign, max, min return nan when any of the > > > arguments is nan. > > > > Note that internally, signbit (the C function) returns an integer. > > > > > > That is the signature of the ufunc. It could be changed... > > Nope, I am talking about the C99 signbit macro. man signbit tells me: > > NAME > signbit - test sign of a real floating point number > > SYNOPSIS > #include <math.h> > > int signbit(x); > > Compile with -std=c99; link with -lm. > Yes, that too. But I was thinking of the ufunc returning nan when needed. However, I think -1 is the way to go for that to get minimal breakage. Chuck
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