Newsgroups: comp.os.msdos.djgpp
From: moshier AT world DOT std DOT com (Stephen L Moshier)
Subject: long double printf fixes
Message-ID: <E53zpx.10B@world.std.com>
Organization: The World @ Software Tool & Die
Date: Wed, 5 Feb 1997 02:46:44 GMT
Lines: 41
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp



djldv201.zip -- long double printf fixes for DJGPP v2.01.


This archive contains C source and object files to improve
floating point printf and scanf accuracy of D. J. Delorie's DJGPP C
library (version 2.01).  With this change, the I/O accuracy
passes tests for compliance with IEEE 754 and 854 standards.

    djgpp/libsrc/c/io/doprnt.c
    djgpp/libsrc/c/lib/ioldoubl.c

strtod.c has been fixed in DJGPP version 2.01.  It no longer
requires a change.

ioldoubl.c is an extra-precision software floating point
arithmetic that includes binary <-> decimal conversion. It adds
about 15K bytes to the size of the library and a comparable
amount to the size of executable programs.

doprnt.c is modified to call the conversion routine in iodoubl.c
for long double `Le' printf format.  It does not (yet) do so for
`Lf', though a function supporting that format is included.


To install the change, delete doprnt.o from libc.a and add the
two .o files to libc.a.  The following commands will do that:

 copy libc.a libc.a00  (make a backup!)
 ar dv libc.a doprnt.o
 ar rv libc.a doprnt.o ioldoubl.o
 ranlib libc.a


The archive containing source and object files is at
  ftp://ftp.std.com/pub/astronomy/djldv201.zip .

Steve Moshier
(moshier AT world DOT std DOT com)
February, 1997