Method add

runtime/Java/src/org/antlr/v4/runtime/misc/IntSet.java:24–24

Adds the specified value to the current set. @param el the value to add @exception IllegalStateException if the current set is read-only

(int el)

	 * @exception IllegalStateException if the current set is read-only
	 */
	void add(int el);

	/**
	 * Modify the current {@link IntSet} object to contain all elements that are