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Comment by wolfgke | Hacker News Reader

In this case you use spaces for the parts that shall be lined up and tabs for the rest. Example:

  class Foo
  {
  \tint bar(int a,
  \t        int b);
  };

Yes, but you can't tell in your editor if you've got

\t int b);

\t\t int b);

Because they'll look the same to you, but not to anyone else without 4-space-tabs.

That is correct. But you do know the indentation rule so you know that the int b only has 1 tab followed by spaces.

There are editors that have such a feature (for example called "show whitespace" or "show spaces and tabs").