- * Return the size of the integer in base `base'. Note that this size
- * is probably only an approximation. However, it is guaranteed that
- * the returned size is always at least the size of the integer, however,
- * it may be larger.
+ * Return the size of the integer in base `base'.
+ *
+ * NOTES
+ *
+ * For any other base but 2 this function usually returns only an
+ * approximated size in the base. It is however guaranteed that the
+ * the returned size is always at least the size of the integer or
+ * larger.
+ *
+ * For base 2 this returns the exact bit-size of the integer.