changelog

早期freebsd实现

	* editbuf.h:  Removed spurious "inline".
	* procbuf.C (procbuf::sys_close):: Handle systems where
	the wait() argument is (union wait*).
	* streambuf.h:  Clean up confusion vbetween ios::iostate
	and ios::fmtflags types.
	* iostream.C:  Use ios::fmtflags type and new streambuf::padn
	method as appropriate.
	* streambuf.[hC]:  Add streambuf::padn() whcih emits many
	copies of the same character.
	* streambuf.h, sbufvscan.C(streambuf::vscan):  Extra optional
	(ios::iostate*) parameter, so errors/EOF can be reported back.
	* iostream.C:  Use 3rd parameter of streambuf::vform() to
	have it set the error state on syntax errors or EOF.
	* streambuf.h, filebuf.C:  New method filebuf::do_write
	with the common functionality of do_flush and sputn.
	* streambuf.C (streambuf::sputn), filebuf.C (filebuf::sputn):
	Return immediately if count is not positive.
	* filebuf.C:  For simplicity, always set _S_TIED_PUT_GET
	for a filebuf, 	not just when it is read+write.
	* filebuf.C (filebuf::sys_read, filebuf::sys_write):
	Restart on an EINTR.
	* filebuf.C: Various fixes to handle uncommon combinations
	of read, writes, and seeks.
	* Makefile.in:  Add dtoa.?, outfloat.?.  Fix *clean rules.
	Increase version to 0;80.
	* iostream.texi:  Add some information about stdio.

Fri Jun  5 13:10:59 1992  Per Bothner  ([e-mail])

	* iostream.h:  Made istream::_gcount and istream::gcount(),
	signed (_G_ssize_t), following AT&T and ANSI.
	* iostream.C:  Make istream::read() set _gcount.

Thu Jun  4 12:03:15 1992  Per Bothner  ([e-mail])

	* streambuf:  ios::set() is a standard ANSI method (though
	it is not in the AT&T libraries).

Wed Jun  3 17:08:53 1992  Per Bothner  ([e-mail])

	* streambuf.h:  Moved ios::set to _STREAM_COMPAT section.
	Added streambuf::stossc(), for AT&T compatibility.
	Changed global fmtflags type to ios::fmttype.
	* TODO:  Remove some things that have been done!
	* README:  Re-write the notes on stdio (which were written
	assuming that installing stdio was the default; that
	is not the case).

Sun May 31 14:06:16 1992  Per Bothner  ([e-mail])

	* Makefile.in:  Increase to version 0.76.
	Use CFLAGS, not MINUS_G.  Add FLAGS_TO_PASS macro to be more
	consistent about passing flags to sub-makes.
	* filebuf.C (filebuf::open - two methods:  Set _S_TIED_PUT_GET
	flag properly.
	* filebuf.C:  Always switch to read mode, if tied and reading,
	even if c==EOF.
	* procbuf.C:  Cosmetic change.

Thu May 28 13:57:19 1992  Per Bothner  ([e-mail])

	* iostream.C:  Don't cast to _G_va_list, since that may
	not be possible.
	* iostream.h (ostream::put):  Move inline definition
	inside class body (avoids order-of-definition problems).
	* procbuf.C (procbuf::open):  Re-set read/write flags.
	* sbufvform.C (streambuf::vform), sbufvscan.C (streambuf::vscan):
	Don't try to cast _G_va_list to va_list (not possible if
	these are structs); just use the _G_va_list parameter as if
	it were a va_list.  (This should work, according to _G_config.h).
	* streambuf.h:  Define new fmtflags type (from ANSI), and use it.
	* streambuf.h: #include <stdarg.h> of needed.

Thu May 14 13:13:18 1992  Per Bothner  ([e-mail])

	* Makefile.in:  Fix handling of SUBDIRS, including passing
	of working values of CC.
	* makebuf.C, filebuf.C:  Use Posix macros S_ISCHR, S_ISREG.
	* streambuf.h, streambuf.C:  Replace _FRIEND_BUG #ifdefby
	_G_FRIEND_BUG, set in _G_config.h.
	* iostream.C (write_int):  Fix thinko: && -> &.
	* iostream.h, iostream.C:  Clean up handling of skipping of
	initial white space by ipfx(0) (e.g. setting flags correctly).


Sat May  9 13:51:12 1992  Per Bothner  ([e-mail])

	* Makefile.in:  Bump version to 0.75.

	* iostream.C (ws manipulator): Set failbit on EOF.
	Also, use skip_ws function.

Wed May  6 15:48:51 1992  Per Bothner  ([e-mail])

	* streambuf.C (streambuf::setb):  Reverse test for
	when to delete _base (oops).
	* streambuf.C (__adjust_colummn):  Add missing const.

	* filebuf.C:  Clean up a number of minor bugs and
	messy code.  This should be more consistent now.
	* iostream.C (istream::ignore):  Optimize to use new
	streambuf::ignore when delim==EOF.  Also, set _gcount.
	* streambuf.h, streambuf.C:  New methods streambuf::ignore,
	streambuf::free_backup_area, streambuf::switch_to_get_mode,
	and streambuf::unsave_markers. and __adjust_column function.
	Also, various tweaks and optimizations.

Sat May  2 16:37:27 1992  Per Bothner  ([e-mail])

	* streambuf.h, streambuf.C, filebuf.C:  Get working initial
	rough support for keep track of current column in output.
	* streambuf.C:  New function __adjust_column() used for
	the above-mentioned column support.

Fri May  1 16:57:14 1992  Per Bothner  ([e-mail])

	* filebuf.C (filebuf::do_flush):  Set get area pointers
	to base() (new pptr()), not old value of pptr().
	* filebuf.C:  Consistently set _flags to _S_NO_READS+_S_NO_WRITES
	when closing, and re-set old values when opening.
	* streambuf.h (streambuf):  New 2-op xsetflags method with mask.
	* streambuf.h (ios::is_open):  New definition:  Assume open
	unless both _S_NO_READS and _S_NO_WRITES are set.
	* stdstrbufs.C:  Set _S_NO_READS+_S_NO_WRITES for not_open_filebuf.

Thu Apr 30 16:50:47 1992  Per Bothner  ([e-mail])

	* Makefile.in:  Bump to version 0.72.
	* streambuf.h:  Change streamoff and streampos to be _G_off_t,
	which seems to make more sense.

	* strtoul.C:  Removed.  Not needed, now that we use libiberty.
	* filebuf.C:  Fix (and turn on) filebuf::sputn.
	* procbuf.C:  New streambuf sub-class, provides popen/pclose
	functionality for streambufs.
	* Makefile.in:  Update appropriately.
	* streambuf.h:  Add cast to avoid warning.
	* streambuf.h, various:  Replace _S_CAN_READ _S_CAN_WRITE by
	the inverses _S_NO_READS _S_NO_WRITES:  Because these flags
	are not part of the standard streambuf protocol, we should
	infer anything if they are not set.
	* filebuf.C:  filebuf::sys_write() does multiple writes if
	needed, and updates _fb._offset (that might be a mistake).
	* filebuf.C:  Work-in-progress, to clean up various things.
	* streambuf.[hC], filebuf.C, makebuf.C:  Move shortbuf from filebuf
	class to streambuf.  New methods streambuf::doallocbuf and
	allocbuf set base() to shortbuf if unbuffered().  This
	simplifies things, since it always sets up a buffer.
	* iostream.texi:  Various improvements.
	* streambuf.[Ch]:  New virtual methods streambuf::get_column()
	and streambuf::set_column for keeping track of column in output.

Thu Apr 30 09:09:06 1992  K. Richard Pixley  ([e-mail])

	* Makefile.in: make CFLAGS work when passed from the command line
	  to make.

Fri Apr 17 09:18:40 1992  Per Bothner  (bothner at PersSony)

	* dummy.C, statdummy.c: Removed (now inlined in ../util/gen-params).
	* igetsb.C (istream& istream::get(streambuf&b, char)): New function.
	* iostream.texi:  The barest beginnings of a manual.
	* streambuf.h, streambuf.C, other places:  All standard
	streambuf classes inherit from backupbuf; the classes (will)
	follow a protocol allowing guaranteed backing up, which is
	useful for scanning/parsing (see iostream.texi).
	* filebuf.C: Numerous bug-fixes, many from Hongjiu Lu
	<[e-mail]>.
	* filebuf.C: filebuf::pbackfail is no longer needed, since
	the logic is now handled by streambufs (rather: backupbufs).
	* iostream.h:  Add proper (signed char) support (if the
	compiler can deal with it).
	* iostream.h:  Add istream::vscan and scan methods.
	* iostream.C:  No longer need closed_streambuf dummy class
	(for non-abstarct under-/overflow); use backupbuf instead.
	* iostream.C:  Add istream& operator>>(istream&, streambuf*).
	* Various places:  Use _G_-prefixed form of parameters
	from ../_G_config.h.
	* stream.C (itoa): Make sure minus sign comes first ...

Fri Mar 20 17:45:56 1992  Per Bothner  ([e-mail])

	* makebuf.C:  Include ioconfig.h, for the sake of NO_ST_BLKSIZE.
	* iostream.h: Add << and >> operators for manipulator
	functions that take ios arguments.
	* filebuf.C:  #include <sys/types> *before* <sys/file>.
	* filebuf.C (filebuf::close):  NULL out buffer pointers.
	indstream.C ioconfif.h iostream.C iostream.h
	* streambuf.h, streambuf.C:  Make streambuf an abstract class by
	making underflow and overflow pure virtual functions.
	* parsestream.h, sbufvform.C:  Define dummy underflow and overflow
	methods, now that streambuf is an abstract class.
	* sbufvscan.C:  Fix logic bug introduced when converting from C.
	* streambuf.C (streambuf::sgetn):  Fix logic bug.
	* strstream.C (3-argument strstreambuf::strstreambuf):
	Set ititial _len correctly.
	* stdio/fclose.C (fclose):  Don't delete stdin/stdout/stderr.

	Generate ioconfig.h automatically in the Makefile.
	* ioconfig.h:  Deleted, now automatically generated.
	* Makefile.in:  New rule to generate ioconfig.h.  Add -I. to path.
	* dummy.C, statdummy.c:  Small test programs used when
	generating ioconfig.h.

Tue Mar 10 18:12:57 1992  Per Bothner  ([e-mail])

	* Makefile.in:  Make version 0.70 for libg++ release.

Fri Mar  6 16:51:35 1992  K. Richard Pixley  ([e-mail])

	* Makefile.in: bump version to .69  (good number).

Fri Mar  6 15:01:10 1992  Per Bothner  ([e-mail])

	* filebuf.C:  Include <sys/types>.
	* strstream.C:  Add casts to avoid compiler warnings.
	* stdio/stdio.h (putc):  Fix to evaluate char argument once only.

Thu Mar  5 18:07:47 1992  Per Bothner  ([e-mail])

	* setvform.C:  Some minor changes to remove compiler warnings.

Tue Mar  3 16:50:36 1992  Per Bothner  ([e-mail])

	* iostream.C:  Include stdio.h.

	* __vsbprintf.C renamed to sbufvform.C.
	* __vsbscanf.C renanmed to sbufvscan.C.
	* Makefile.in:  Reflect previous changes.
	* TODO:  Update.

Sun Mar  1 16:48:08 1992  Per Bothner  ([e-mail])

	* __vsbscanf.C:  Add some initializations to avoid compiler
	warnings.
	* iostream.C (read_int):  Fix two logic errors.
	* streambuf.h:  Add macros to avoid duplicating magic numbers.
	* streambuf.C:  Move definitions of standard streambufs
	and streams to new files stdstrbufs.C and stdstreams.C.
	* Makefile.in:  Add stdstrbufs.o and stdstreams.o.
	* stdio/stdio.h:  Add define of size_t, and fix that of fpos_t.
	* stdio/vfprintf.C:  Fix use of __STDIO_VA to _G_va_list.

Thu Feb 27 06:14:33 1992  K. Richard Pixley  ([e-mail])

	* Makefile.in: removed a stray rm -f

Wed Feb 26 12:05:17 1992  Per Bothner  (bothner at cygnus.com)

	* filebuf.C:  On close(), don't zero *all* the flags.
	* ioconfig.h, streambuf.C: Configuration tweeaks.
	* streambuf.h:  Use _G_config.h to get configuration
	parameters.
	* streambuf.h:  Change _width and width() to
	take/return ints, not longs.
	* makebuf.C:  Replace test for VMS by generic NO_ST_BLKSIZE.
	* igetline.C:  istream::get and istream::getline
	should set the failbit it no characters are extracted.
	* sgetline.C, __vsbscanf.C:  Add some casts.
	* iostream.h:  Complicate istream::get() and istream::peek()
	to set and test state flags.