LEARN-CPP-2020

Learning C++

Day 1

• Learn I/O, iostream.

Day 2

• Solve some problems in BAEKJOON with C++.

Day 3

• Learn a concept of class and object oriented programming.

• Study from The Charno, Youtube channel.

Day 4

• Learn about an enum and apply the enum in the previous log_level.cpp file.

• Constructor / Destructor

• Linked list with class

Day 5

• Basic concept of Inheritance

• Virtual function and override

  • Pure virtual function

• Visibility

  • Private, protected, public

    1. Private : Only current class can see the members.

    2. Protected : Current class and its subclasses can see the members.

    3. public : Everyone can see the members.

  • new / delete

    int *ptr = new int[5];
    delete[] ptr;

    1. new allocate the data to the heap memory (general = stack).

    2. The data in heap does not end when they go out of namespace ({ }).

    3. We have to use delete or delete[] to clean up the memory.