Avoid needless is_zero check in set_sign

If not negative we don't need to check the size

1 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/math/bigint/bigint.h b/src/lib/math/bigint/bigint.h
index 9b7af4169..ee8f81719 100644
--- a/src/lib/math/bigint/bigint.h
+++ b/src/lib/math/bigint/bigint.h
@@ -553,10 +553,10 @@ class BOTAN_PUBLIC_API(2,0) BigInt final
      */
      void set_sign(Sign sign)
         {
-        if(is_zero())
-           m_signedness = Positive;
-        else
-           m_signedness = sign;
+        if(sign == Negative && is_zero())
+           sign = Positive;
+
+        m_signedness = sign;
         }
 
      /**