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* [newlib-cygwin] Fix error in powf for (-1.0, NaN) input
@ 2020-03-02 15:46 Corinna Vinschen
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From: Corinna Vinschen @ 2020-03-02 15:46 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=cef36220f247e02847ee4f39790b7debcc50a36b
commit cef36220f247e02847ee4f39790b7debcc50a36b
Author: Fabian Schriever <fabian.schriever@gtd-gmbh.de>
Date: Mon Mar 2 15:40:23 2020 +0100
Fix error in powf for (-1.0, NaN) input
Prevent confusion between -1.0 and 1.0 in powf. The corresponding
similar error was previously fixed for pow (see commit bb25dd1b)
Diff:
---
newlib/libm/math/ef_pow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/newlib/libm/math/ef_pow.c b/newlib/libm/math/ef_pow.c
index 524e3f9..d9e85a9 100644
--- a/newlib/libm/math/ef_pow.c
+++ b/newlib/libm/math/ef_pow.c
@@ -79,7 +79,7 @@ ivln2_l = 7.0526075433e-06; /* 0x36eca570 =1/ln2 tail*/
/* x|y==NaN return NaN unless x==1 then return 1 */
if(FLT_UWORD_IS_NAN(ix) ||
FLT_UWORD_IS_NAN(iy)) {
- if(ix==0x3f800000) return one;
+ if(hx==0x3f800000) return one;
else return nanf("");
}
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2020-03-02 15:46 [newlib-cygwin] Fix error in powf for (-1.0, NaN) input Corinna Vinschen
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