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From: Corinna Vinschen <corinna@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] Fix error in powf for (-1.0, NaN) input
Date: Mon, 02 Mar 2020 15:46:00 -0000	[thread overview]
Message-ID: <20200302154619.64650.qmail@sourceware.org> (raw)

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("");
 	}


                 reply	other threads:[~2020-03-02 15:46 UTC|newest]

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