+/* These are defined to be "real types capable of representing types", with
+ "range and precision of times representable in [them being] implementation-
+ defined".
+ As part of struct timespec (see below), time_t is further defined as "a
+ linear count of seconds", with potentially different semantics from a
+ "normal" time_t.
+ For sake of simplicity, we used just that (common) definition of "seconds
+ since epoch" as integer.
+*/