What does interdiff do that diff cannot?
If I'm trying to find the diff between two diffs, why can't I just diff the two diffs? I have tested diff diff1 diff2 and interdiff diff1 diff2 and have not found any difference in the output. In what case would they be different? (I am fully aware that interdiff's stated purpose is to find the changes between two patches.) Why use interdiff and not just simply diff two patches? An interdiff tells you whether lines removed in the second patch were added in the first patch, and similarly, whether lines added in the second patch were removed in the first patch. Simply diffing the two commits