感谢各位大佬, 今天学到特别多, 我睡了

@geelaw 这个编译不能通过呀, 提示
````
In file included from ~/Desktop/learnC++/LearnC++/main.cpp:11:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/set:458:19: error: no matching constructor for initialization of 'std::__1::set<Person, (lambda at ~/Desktop/learnC++/LearnC++/main.cpp:36:32), std::__1::allocator<Person> >::value_compare' (aka '(lambda at /Users/cosmojulis/Desktop/learnC++/LearnC++/main.cpp:36:32)')
: __tree_(value_compare()) {}
^
~/Desktop/learnC++/LearnC++/main.cpp:34:12: note: in instantiation of member function 'std::__1::set<Person, (lambda at ~/Desktop/learnC++/LearnC++/main.cpp:36:32), std::__1::allocator<Person> >::set' requested here
return {};
^
~/Desktop/learnC++/LearnC++/main.cpp:36:15: note: in instantiation of function template specialization 'make_set<Person, (lambda at ~/Desktop/learnC++/LearnC++/main.cpp:36:32)>' requested here
auto my_set = make_set<Person>([](const Person & a, const Person & b)
^
~/Desktop/learnC++/LearnC++/main.cpp:36:32: note: candidate constructor (the implicit copy constructor) not viable: requires 1 argument, but 0 were provided
auto my_set = make_set<Person>([](const Person & a, const Person & b)
^
~/Desktop/learnC++/LearnC++/main.cpp:36:32: note: candidate constructor (the implicit move constructor) not viable: requires 1 argument, but 0 were provided
````

@noli 请问需要怎么实现

@glacer 64bit

你是说通过指针加偏移量来访问私有成员?

C++

重构

知识的价值在于传播, 懒得传播和藏师完全不一样, 是不是藏师先要知道师从何来, 自己研究的东西是可以藏着掖着的, 师从别人的也藏着掖着就很可恶.

闲暇时可以再学点别的, 丰富自己的技术栈, 比如 C++, Rust, Go 之类的, CS 基础打好后, 学别的也很快, 我也是非科班的.

额, const char *input[] = {"a","orange","apple","mobile","car"}; 这种写法元素就是 5 个.
上面应该说的是 const char *input[1024] = {"a","orange","apple","mobile","car"};
为什么不能重新编辑!!

接受! @2exploring

大型科普现场:
字符串 定义是从以第一个字节往后到'\0'为止.
const char *input[] = {"a","orange","apple","mobile","car"}; 这种写法, 会把后面的空白元素都初始化 0x0 或者 0xcc...(这个指针大小也是不固定的).
const char *input[1024]; 这种不会初始化;

@2exploring

2exploring 什么本质?

1024 - 6 后面的 char * 都是 0x0, 但是 strcmp 的参数不能为 NULL

魔幻主义

理解 Linux 内核是个什么水准, 我听说 Linux 内核有一千万行代码?

和 CCTV 说的完全相反, 这是造谣!