Max Horn wrote:

> Well, unlike suffixcmp, it is transitive, so it could be used for sorting.

It is not antisymmetric.

        prefixcmp("foo", "foobar") < 0
        prefixcmp("foobar", "foo") == 0

I can see how it's possible to care about the sign of the return
value, but it's equally possible to care about the sign from
suffixcmp.  Neither is suitable as a function for passing to qsort.

Hoping that clarifies,
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