math: Fix undefined behavior in exp10()

ARM-software · May 22, 2024 · 88ffd2e · 88ffd2e
1 parent 39fed85
commit 88ffd2e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/math/exp10.c b/math/exp10.c
@@ -103,7 +103,7 @@ exp10 (double x)
      Approximate the two components separately.  */
 
   /* s = 2^(k/N), using lookup table.  */
-  uint64_t e = ki << (52 - EXP_TABLE_BITS);
+  uint64_t e = (uint64_t)ki << (52 - EXP_TABLE_BITS);
   uint64_t i = (ki & IndexMask) * 2;
   uint64_t u = __exp_data.tab[i + 1];
   uint64_t sbits = u + e;