[BUG] Add const keyword to methods wherever appropriate

[aniketsharma00411]

Note: You can contact @ashok-arora if you face any problem while solving this issue.

It is impossible to work with const Matrix objects as none of the methods are declared const.

Description

Using a const Matrix object I can't even call basic methods like row_length(), col_length(), print(), etc. as none of these are declared const` even though they are not changing the object value.

Expected Behavior

row_length(), col_length() and other methods not changing the object should run when called using a const Matrix object.

Actual Behavior

row_length(), col_length() and other methods not changing the object give error when when called using a const Matrix object.

Possible Fix

Add const keyword to methods which will not change the object value.

[nishihere19]

Can I work on this?

[ashok-arora]

Can I work on this?

Sure!
Let me know if you face any difficulty!

[aniketsharma00411]

@nishihere19 Please let us know if you are working on the issue or not.

[nishihere19]

Sorry, I have some work at hand these days. I won't be able to work on this.

[aniketsharma00411]

No problem