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* [newlib-cygwin] libm/math: ensure that expf(-huge) sets FE_UNDERFLOW exception
@ 2020-08-10 8:35 Corinna Vinschen
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From: Corinna Vinschen @ 2020-08-10 8:35 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=73b02710ecbea5ace2508527fbc4f939c87069cd
commit 73b02710ecbea5ace2508527fbc4f939c87069cd
Author: Keith Packard via Newlib <newlib@sourceware.org>
Date: Fri Aug 7 22:40:21 2020 -0700
libm/math: ensure that expf(-huge) sets FE_UNDERFLOW exception
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 <keithp@keithp.com>
Diff:
---
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 */
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2020-08-10 8:35 [newlib-cygwin] libm/math: ensure that expf(-huge) sets FE_UNDERFLOW exception Corinna Vinschen
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