函数int_load_binary中有如下代码

    /* Read inherit names and find prog. Check mod times also. */
    for (i = 0; i < (int) p->num_inherited; i++) {
        fread((char *) &len, sizeof len, 1, f);
        ALLOC_BUF(len + 1);
        fread(buf, sizeof(char), len, f);
        buf[len] = '\0';

        /*
         * Check times against inherited source. If saved binary of
         * inherited prog exists, check against it also.
         */
        sprintf(file_name_two, "%s/%s", SAVE_BINARIES, buf);
        if (file_name_two[0] == '/')
            file_name_two++;
        len = strlen(file_name_two);
        file_name_two[len - 1] = 'b';
        if (src_flag &&
                (check_times(mtime, buf) <= 0 ||
                 check_times(mtime, file_name_two) == 0)) {     /* ok if -1 */

            if (comp_flag)
                debug_message("out of date (inherited source newer).\n");
            fclose(f);
            free_string(p->name);
            FREE(p);
            FREE(buf);
            return OUT_OF_DATE;
        }
        /* find inherited program (maybe load it here?) */
        ob = find_object2(buf);
        if (!ob) {
            if (comp_flag)
                debug_message("missing inherited prog.\n");
            fclose(f);
            free_string(p->name);
            FREE(p);
            inherit_file = buf;     /* freed elsewhere */
            return 0;
        }
        // last modified by soso on 2010-06-21 for binaries support
        p->inherit->prog = ob->prog;
    }

请问为什么写成p->inherit->prog = ob->prog;
难道不应该写成p->inherit[i]->prog = ob->prog;吗？