Const methods in C#

Question

In C++, you can define a constant method like so:

int func_that_does_not_modify_this(int arg) const {}

Placing const at the en

Answer 1

C# 8.0 adds support for C++ style const methods, but only to structs. You can add a readonly modifier to a method deceleration to make any modifications to state within it a compiler warning (which you can define as an error if you wish). A readonly struct method may still call a non-readonly method, but that method will be called on a copy of the struct to prevent any changes to the original data.

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