book: add missing header file (#233)

This commit is contained in:
gliangbupt
2022-07-17 18:42:17 +08:00
committed by GitHub
parent 97b6cc75f7
commit dd7b707acf
2 changed files with 4 additions and 0 deletions

View File

@@ -285,6 +285,8 @@ such as:
```cpp
#include <initializer_list>
#include <vector>
#include <iostream>
class MagicFoo {
public:
std::vector<int> vec;

View File

@@ -233,6 +233,8 @@ int main() {
```cpp
#include <initializer_list>
#include <vector>
#include <iostream>
class MagicFoo {
public:
std::vector<int> vec;