corresponding byte and store in DST. CHARS is the number of
characters in SRC. The value is the number of bytes stored in DST.
Usually, the value is the same as CHARS, but is less than it if SRC
- contains a non-ASCII, non-eight-bit characater. If ACCEPT_LATIN_1
+ contains a non-ASCII, non-eight-bit character. If ACCEPT_LATIN_1
is nonzero, a Latin-1 character is accepted and converted to a byte
of that character code.
Note: Currently the arg ACCEPT_LATIN_1 is not used. */