void iterate_dict(DBusMessageIter *dict, char *string, uint16_t key_int)
{
DBusMessageIter dict_entry, sub_dict_entry;
printf("{ ");
while (dbus_message_iter_get_arg_type(dict) == DBUS_TYPE_DICT_ENTRY) {
dbus_message_iter_recurse(dict, &dict_entry);
dbus_message_iter_get_basic(&dict_entry, &string);
printf("%s=", string);
dbus_message_iter_next(&dict_entry);
while (dbus_message_iter_get_arg_type(&dict_entry)
!= DBUS_TYPE_INVALID) {
dbus_message_iter_recurse(&dict_entry, &sub_dict_entry);
if (dbus_message_iter_get_arg_type(&sub_dict_entry)
== DBUS_TYPE_UINT16) {
dbus_message_iter_get_basic(&sub_dict_entry,
&key_int);
printf("%d ", key_int);
} else if (dbus_message_iter_get_arg_type(&sub_dict_entry)
== DBUS_TYPE_STRING) {
dbus_message_iter_get_basic(&sub_dict_entry,
&string);
printf("%s ", string);
} else if (dbus_message_iter_get_arg_type(&sub_dict_entry)
== DBUS_TYPE_ARRAY) {
iterate_array(&sub_dict_entry);
}
dbus_message_iter_next(&dict_entry);
}
dbus_message_iter_next(dict);
}
printf("}");
}
/* Get dictionary info about the current service and store it */
static void extract_service_properties(DBusMessageIter *dict,
struct service_data *service)
{
DBusMessageIter entry, value, array_item;
char *key;
char *key_str;
uint16_t key_uint16;
dbus_bool_t key_bool;
while (dbus_message_iter_get_arg_type(dict) == DBUS_TYPE_DICT_ENTRY) {
dbus_message_iter_recurse(dict, &entry);
dbus_message_iter_get_basic(&entry, &key);
printf("\n %s = ", key);
if (strcmp(key, "Name") == 0 && strlen(key) < 5)
service->name = key;
dbus_message_iter_next(&entry);
dbus_message_iter_recurse(&entry, &value);
/* Check if entry is a dictionary itself */
if (strcmp(key, "Ethernet") == 0 ||
/* if just strcmp, the .Configuration names don't match
* and they are iterated with iterate_array instead*/
strncmp(key, "IPv4", 4) == 0 ||
strncmp(key, "IPv6", 4) == 0 ||
strncmp(key, "Proxy", 5) == 0 ||
strcmp(key, "Provider") == 0) {
dbus_message_iter_recurse(&value, &array_item);
iterate_dict(&array_item, key_str, key_uint16);
} else
switch (dbus_message_iter_get_arg_type(&value)) {
case DBUS_TYPE_ARRAY:
iterate_array(&value);
break;
case DBUS_TYPE_BOOLEAN:
dbus_message_iter_get_basic(&value, &key_bool);
printf("%s", key_bool == TRUE ? "True" : "False");
break;
case DBUS_TYPE_BYTE:
dbus_message_iter_get_basic(&value, &key_uint16);
printf("%d", key_uint16);
break;
case DBUS_TYPE_STRING:
dbus_message_iter_get_basic(&value, &key_str);
printf("%s", key_str);
break;
}
dbus_message_iter_next(dict);
}
printf("\n\n");
}
/* sequential container adapter:
* stack
* queue
* priority_queue
*/
static int sequential_container_op()
{
std::list<string> authors = {"Miltion", "Shakespeare", "Austen"};
std::vector<const char*> articles = {"a", "an", "the"};
std::list<string> list2(authors); //拷贝构造时，类型必须完全一致
//std::vector<string> articles2 = articles;
std::forward_list<std::string> words(articles.cbegin(), articles.cend()); //此时类型可以不一致
std::array<int, 10> a1 = { 1, 2, 3 };
std::array<int, 10> a2 = a1;
a2 = { 4, 5, 6 };
iterate_array(a1, "a1: ");
iterate_array(a2, "a2: ");
cout << endl;
//std::swap(a1, a2);
a1.swap(a2);
iterate_array(a1, "a1: ");
iterate_array(a2, "a2: ");
cout << endl;
words.assign(articles.cbegin(), articles.cend());
words.assign(initializer_list<string>{"wang", "hou", "ren"});
words.assign(3, "wo");
// for (auto &s : words) {
// cout << s << " ";
// }
// cout << endl;
string str;
str.insert(str.begin(), 'b');
cout << str << endl;
std::vector<std::string> svec;
svec.insert(svec.end(), 2, "ha");
svec.insert(svec.begin(), { "Aa", "Bb" });
auto end_it = svec.end();
std::vector<std::string> svec2{"hello", "world", "2016"};
#if _cplusplus > 201103L
auto ret = svec.insert(end_it-1, svec2.begin()+1, svec2.end());
#endif
// if (ret == end_it)
// cout << "insert failed" << endl;
svec.emplace_back("12345");
svec.emplace(svec.begin() + 1, "67890");
iterate_vector_string(svec);
string s1 = svec.back();
string s2 = *--svec.end();
if (s1 == s2)
cout << "equal string: " << s1 << endl;
string s3 = svec.at(0);
string s4 = svec.front();
if (s3 == s4)
cout << "equal front string: " << s3 << endl;
auto it = svec.erase(svec.end()-1);
if (it != svec.end())
cout << *it << endl;
else
cout << "off-the-end iterator" << endl;
std::forward_list<int> f_list;
auto f_it = f_list.before_begin();
for (int i = 0; i < 10; ++i) {
f_it = f_list.insert_after(f_it, i);
// f_list.push_front(i);
}
for (auto f_curit = f_list.begin(), f_it = f_list.before_begin(); f_curit != f_list.end();) {
if (*f_curit % 2)
f_curit = f_list.erase_after(f_it);
else {
f_it = f_curit;
++f_curit;
}
}
for (auto &i : f_list) {
cout << i << " ";
}
cout << endl;
vector<int> v1;
auto cap = v1.capacity();
v1.insert(v1.begin(), 0);
cap = v1.capacity();
v1.reserve(10);
cap = v1.capacity();
v1.shrink_to_fit();
cap = v1.capacity();
vector<int> v2{10, 20, 30, 40, 50, 60};
#if _cplusplus > 201103L
auto v1_it = v1.insert(v1.begin(), v2.begin(), v2.begin() + (v2.end() - v2.begin()) / 2); //返回插入的第一个元素迭代器
cout << *v1_it << endl; //10
#endif
std::forward_list<int> flist2;
auto fl2_it = flist2.insert_after(flist2.before_begin(), v2.begin(), v2.begin() + (v2.end() - v2.begin()) / 2); //返回插入的最后一个元素迭代器
cout << *fl2_it << endl; //30
int fl2_v = *flist2.begin();
//移动flist.begin()之后的那个元素移动到了flist3，为什么移动的不是flist2.begin()本身？因为forward_list不能方便的操作迭代器之前的那个元素
std::forward_list<int> flist3{77, 78, 79};
flist3.splice_after(flist3.before_begin(), flist2, flist2.begin());
return 0;
}
