ex2-4-2.c

#include <stdio.h>
#include <string.h>

#define LIMIT 1024

void squeeze(char s1[], char s2[]);

/* TO StackOverflow USERS: THIS VERSION IS WHEN THE ERROR IS FIXED. */

/* Exercise 2-4. Write an alternative version of squeeze(s1,s2) that deletes each character in
s1 that matches any character in the string s2. */
main()
{
    char str1[LIMIT], str2[LIMIT];
    int c, d, i, j, lim;
    
    i = j = 0;
    
    /* concatenate each character in c to str1 */
    lim = LIMIT;
    while (lim > 0) {
        c = getchar();
        if (c == EOF || c == '\n') {
            lim = 0;
        }
        else {
            str1[i] = c;
            ++i;
        }
    }
    str1[i] = '\0';
    
    /* concatenate each character in c to str2 */
    lim = LIMIT;
    while (lim > 0) {
        d = getchar();
        if (d == EOF ||  d == '\n') {
            lim = 0;
        }
        else {
            str2[j] = d;
            ++j;
        }
    }
    str2[j] = '\0';
}

/* Deletes each character in s1 that matches any character in the string s2. */
void squeeze(char s1[], char s2[])
{
    /* Nothing here yet.  */
}

ex2-4.c

#include <stdio.h>
#include <string.h>

#define LIMIT 1024

void squeeze(char s1[], char s2[]);

/* TO StackOverflow USERS: THIS VERSION IS WHEN THE ERROR OCCURED. */

/* Exercise 2-4. Write an alternative version of squeeze(s1,s2) that deletes each character in
s1 that matches any character in the string s2. */
main()
{
    char str1[LIMIT], str2[LIMIT];
    int c, i, j, lim;
    
    i = j = 0;
    
    /* concatenate each character in c to str1 */
    lim = LIMIT;
    while (lim > 0) {
        c = getchar();
        if (c == EOF || c == '\n') {
            lim = 0;
        }
        else {
            str1[i] = c;
            ++i;
        }
    }
    str1[i] = '\0';
    
    /* concatenate each character in c to str2 */
    lim = LIMIT;
    while (lim > 0) {
        c = getchar();
        if (c == EOF ||  c == '\n') {
            lim = 0;
        }
        else {
            str2[j] = c;
            ++j;
        }
    }
    str2[j] = '\0';
}

/* Deletes each character in s1 that matches any character in the string s2. */
void squeeze(char s1[], char s2[])
{
    /* Nothing here yet.  */
}