counter_t counter_diff(counter_t old_value, counter_t new_value);
/* Convert a rate back to a value_t. When converting to a derive_t, counter_t
- * or absoltue_t, take fractional residuals into account. This is important
+ * or absolute_t, take fractional residuals into account. This is important
* when scaling counters, for example.
* Returns zero on success. Returns EAGAIN when called for the first time; in
* this case the value_t is invalid and the next call should succeed. Other