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A question about const in C++

I saw this paragraph in C++ lesson: In addition, a compiler error is generated when any const member function attempts to change a member variable or to call a non-const member function. But in my program, I can change the members of another class called Game. Which point I am missing? https://code.sololearn.com/c2BJ0e8PpDky/?ref=app

10th Feb 2018, 12:24 PM
Yusuf
Yusuf - avatar
2 Respostas
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Hello Joseph, Good question. For what I understand, you can not change the member variables of a 'const' object. But in your code you are changing the member variable (name) of a 'non-const' object. (instance of Game) The 'Person' object is the one that is 'const', not the 'Game' object. I made a code to show the error when I try to change the member variable of a const object: https://code.sololearn.com/ci4HWB989A0j/?ref=app
10th Feb 2018, 1:14 PM
Ulisses Cruz
Ulisses Cruz - avatar
+ 3
Maybe this helps you: https://stackoverflow.com/questions/3062360/const-member-function-vs-const-friend-function "the const tells the compiler that the function won't modify the class X object that the implicit this parameter points to. The class Y object that's passed as a reference isn't const."
10th Feb 2018, 1:16 PM
Alex
Alex - avatar