You should NOT do such alignment anyway, because if you rename "some_function" to "another_function", then you will lose your formatting. Instead, format argum

You should NOT do such alignment anyway, because if you rename "some_function" to "another_function", then you will lose your formatting. Instead, format arguments in a separate block: some_function( arg1, arg2, arg3, arg4, arg5, arg6); When arguments are aligned in a separate block, both spaces and tabs work fine. My own preference is tabs, because of less visual noise in code diff [review].