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-rw-r--r--src/math/logf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/math/logf.c b/src/math/logf.c
index 7ee5d7fe..e4c2237c 100644
--- a/src/math/logf.c
+++ b/src/math/logf.c
@@ -53,7 +53,7 @@ float logf(float x)
tmp = ix - OFF;
i = (tmp >> (23 - LOGF_TABLE_BITS)) % N;
k = (int32_t)tmp >> 23; /* arithmetic shift */
- iz = ix - (tmp & 0x1ff << 23);
+ iz = ix - (tmp & 0xff800000);
invc = T[i].invc;
logc = T[i].logc;
z = (double_t)asfloat(iz);