Void value not ignored as it ought to be [I DO RETURN SOMETHING!]

[pointingmachine]

Error: void value not ignored as it ought to be


I looked up this error online and most issues seemed to be associated with not returning anything, or putting the return statement in an if block. I do no such thing. What's going on?

*******IMPORTANT****** Even if I put this before the first if statement in the function, I still get the same error!

char *a = "lel";
return a;

FUNCTION:

char *list_groups(Group *group_list) {
    Group * current = group_list;
    char *groupList;
    // What if there are no groups, do I have to strcpy an empty string?
    if ((groupList = malloc(sizeof(char))) == NULL) {
        perror("Error allocating space for the string groupList");
        exit(1);
    }    
    while (current != NULL) {
        if ((groupList = realloc(groupList, sizeof(groupList) + sizeof(current->name) - 1)) == NULL) {
            perror("Error resising the memory allocated to groupList");
            exit(1);
        }
        strcat(groupList, strcat(current->name, "\n"));
        current = current->next;
    }    
    return groupList;
}

FUNCTION CALL:

char buffer;

//the above statement is not actually above the else if statement. 

} else if (strcmp(cmd_argv[0], "list_groups") == 0 && cmd_argc == 1) {
        buffer = list_groups(group_list);
        printf("%c", buffer);

[laserlight]

You need to fix the problem I mentioned in your other thread. Furthermore, you need to post the exact error message and tell us which line does it refer to.

[pointingmachine]

You need to fix the problem I mentioned in your other thread. Furthermore, you need to post the exact error message and tell us which line does it refer to.

For this problem, it's line 6, the function call : buffer = list_groups(group_list);

I will revisit the other thread

[laserlight]

For this problem, it's line 6, the function call : buffer = list_groups(group_list);

One problem with that line is that list_groups returns a char*, but buffer is a char. buffer should be a char* instead. The error message does not make sense, but that's probably because the mistake is in a part of the code that you did not show.

[pointingmachine]

Yes, the issue was in the header file, the return values of the functions in the header file were different. I got my old error back in the other thread, and now I am debugging again. Will update soon. Please check back when you can. I shouldn't be too long.

The return value for this function was null in the header file...I WOULD HAVE NEVER GUESSED, because the header file was provided with the assignment...