How imperative sentences and exclamatory sentences are converted from direct to indirect speech?

In indirect speech, imperative sentences are generally changed to an infinitive form. For example, "He said to come here" would become "He told me to come there." Exclamatory sentences in indirect speech are often reported using a verb such as "exclaimed" or "said with surprise" without maintaining the exclamation mark. For example, "She said, 'What a beautiful day!'" would become "She exclaimed that it was a beautiful day."