Exercise 4-7. Write a routine ungets(s) that will push back an entire string onto the input.

Exercise 4-7. Write a routine ungets(s) that will push back an entire string onto the input. Should ungets know about buf and bufp, or should it just use ungetch?

#include <string.h>

/* ungets */

void ungets( char s[])

{

    int len;

    

    len = strlen(s);

    while(len > 0)

        ungetch(s[--len]);

}

 Ungets should not know about buf and bufp, and it just use ungetch.