Re: [PATCH] libm/math: ensure that expf(-huge) sets FE_UNDERFLOW exception
Corinna Vinschen via Newlib <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
On Aug 7 22:40, Keith Packard via Newlib wrote: > It was calling __math_uflow(0) instead of __math_uflowf(0), which > resulted in no exception being set on machines with exception support > for float but not double. > > Signed-off-by: Keith Packard <[email protected]> > --- > newlib/libm/math/ef_exp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/newlib/libm/math/ef_exp.c b/newlib/libm/math/ef_exp.c > index 0cd0c00b3..d6e25bfcd 100644 > --- a/newlib/libm/math/ef_exp.c > +++ b/newlib/libm/math/ef_exp.c > @@ -64,7 +64,7 @@ P5 = 4.1381369442e-08; /* 0x3331bb4c */ > if(sx > FLT_UWORD_LOG_MAX) > return __math_oflowf(0); /* overflow */ > if(sx < 0 && hx > FLT_UWORD_LOG_MIN) > - return __math_uflow(0); /* underflow */ > + return __math_uflowf(0); /* underflow */ > > /* argument reduction */ > if(hx > 0x3eb17218) { /* if |x| > 0.5 ln2 */ > -- > 2.28.0 Pushed. Thanks, Corinna -- Corinna Vinschen Cygwin Maintainer Red Hat