If an argument of a ctype function is outside "unsigned char"
and if it is not EOF, the behavior is undefined.
The isascii(3) is the sole exception of above and it was used to
be used to check a value was valid for other ctype functions in
ancient systems. On modern systems, the ctype functions take
all values of "unsigned char", and this check is obsolete and
even wrong for non-ASCII systems. However, we leave the isascii()
untouched for now, so as not to change the current behavior.
- make string comparisons case-insensitive
- add description of whitespace in the format string
- note that %t and %n match no whitespace as well as some whitespace
- change wording of standard to say "includes all requirements of"
instead of "conforms to" XPG4 as our %y is extended beyond XPG4
- %C and %y can be used in conjunction properly, though %y can have its
old behaviour if used without %C
- %I formats hous 0..11 with 0 representing "12"; this is correct both
with and without am/pm (%p rule fixed to compensate)
- %j fixed for range [0..365] in struct tm
- %m fixed for range [0..11] in struct tm
- %S fixed for range [0..61] in struct tm
identifier namespace by renaming non standard functions and variables
such that they have a leading underscore. The library will use those
names internally. Weak aliases are used to provide the original names
to the API.
This is only the first part of this change. It is most of the functions
which are implemented in C for all NetBSD ports. Subsequent changes are
to add the same support to the remaining C files, to assembly files, and
to the automagically generated assembly source used for system calls.
When all of the above is done, ports with weak alias support should add
a definition for __weak_alias to <sys/cdefs.h>.
christos