[PATCH 3/4] Compare j as unsigned
Andoni Arregi <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
j is int32_t and thus j<<31 is undefined if j==1.
Taken from FreeBSD commit bdd8abc6d6a93ce3ab8ad5db716222ee3110c4a3
---
newlib/libm/math/e_pow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/newlib/libm/math/e_pow.c b/newlib/libm/math/e_pow.c
index f24a98f6e..0e2251f10 100644
--- a/newlib/libm/math/e_pow.c
+++ b/newlib/libm/math/e_pow.c
@@ -141,7 +141,7 @@ ivln2_l = 1.92596299112661746887e-08; /* 0x3E54AE0B, 0xF85DDF44 =1/ln2 tail*/
k = (iy>>20)-0x3ff; /* exponent */
if(k>20) {
j = ly>>(52-k);
- if((j<<(52-k))==ly) yisint = 2-(j&1);
+ if(((uint32_t)j<<(52-k))==ly) yisint = 2-(j&1);
} else if(ly==0) {
j = iy>>(20-k);
if((j<<(20-k))==iy) yisint = 2-(j&1);
--
2.40.0