<standard, character> (UTF) A set of standard character
encodings in accordance with ISO 10646.
One of a set of standard character encodings, the most widely
used of which are UTF-8, UTF-16, and UTF-32. The code tables
in ISO 10646 and in the Unicode standard are identical,
although the Unicode standard includes additional material.
UTF-8 is the most widely used encoding, at least on Unix
systems. Since it does not include any bytes like '\0' or '/'
which have a special meaning in filenames and other C
library function parameters, and 7-bit ASCII characters have
the same encoding under both ASCII and UTF-8, the required
changes to existing software are minimised.
