Commit 59ebba1d813f624a0bd0a97450a940c289c9e9c4
2015-02-07T18:02:42
diffseq: prefer ptrdiff_t to ssize_t * lib/diffseq.h: In commentary, prefer ptrdiff_t to ssize_t. ptrdiff_t is the natural type for signed indexes. On a few older platforms, ssize_t is narrower than size_t.