Merge remote-tracking branch 'XRPLF/develop' into ximinez/lending-refactoring-1

* XRPLF/develop:
  Add `Scale` to SingleAssetVault (5652)

include/xrpl/basics/Number.h

@@ -150,6 +150,24 @@ public:
         return (mantissa_ < 0) ? -1 : (mantissa_ ? 1 : 0);
     }
 
+    Number
+    truncate() const noexcept
+    {
+        if (exponent_ >= 0 || mantissa_ == 0)
+            return *this;
+
+        Number ret = *this;
+        while (ret.exponent_ < 0 && ret.mantissa_ != 0)
+        {
+            ret.exponent_ += 1;
+            ret.mantissa_ /= rep(10);
+        }
+        // We are guaranteed that normalize() will never throw an exception
+        // because exponent is either negative or zero at this point.
+        ret.normalize();
+        return ret;
+    }
+
     friend constexpr bool
     operator>(Number const& x, Number const& y) noexcept
     {