* \param init_size initial size of the heap
* \param free_func function to call on each element when you want to free
* the whole heap (or NULL if nothing to do).
* \param init_size initial size of the heap
* \param free_func function to call on each element when you want to free
* the whole heap (or NULL if nothing to do).
- * \param H the heap we're working on
- * \return the number of elements in the heap
+ * @brief returns the number of elements in the heap
+ * @param H the heap we're working on
+ * @return the number of elements in the heap
* \param H the heap we're working on
* \param content the object you want to add to the heap
* \param key the key associated to this object
*
* \param H the heap we're working on
* \param content the object you want to add to the heap
* \param key the key associated to this object
*
* \param H the heap we're working on
*
* \return the smallest key in the heap without modifying the heap.
* \param H the heap we're working on
*
* \return the smallest key in the heap without modifying the heap.