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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[BUG] Add `const` keyword to methods wherever appropriate","articleBody":"**Note:** You can contact @ashok-arora if you face any problem while solving this issue.\r\n\r\nIt is impossible to work with `const Matrix` objects as none of the methods are declared `const`.\r\n\r\n## Description\r\nUsing 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.\r\n\r\n## Expected Behavior\r\n`row_length()`, `col_length()` and other methods not changing the object should run when called using a `const Matrix` object.\r\n\r\n## Actual Behavior\r\n`row_length()`, `col_length()` and other methods not changing the object give error when when called using a `const Matrix` object.\r\n\r\n## Possible Fix\r\nAdd `const` keyword to methods which will not change the object value.","author":{"url":"https://github.com/aniketsharma00411","@type":"Person","name":"aniketsharma00411"},"datePublished":"2021-01-02T08:34:21.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/63/Matrix/issues/63"}