gcc/libf2c
Craig Burley a051827081 u77-test.f: Don't bother declaring etime.
* libU77/u77-test.f: Don't bother declaring etime.
        Use `implicit none' and declare mask and lenstr.
        Do ETIME/DTIME consistency check before loop, then
        use loop to verify that dtime "ticks" at some point.
        Check ETIME array-sum using single-precision add, to
        avoid spurious complaint on systems (like x86) that
        use more precision for intermediate results.
        Fix `Results of ETIME and DTIME...' message to print
        pertinent values (r1 and r2 instead of i and j).
        Change loop from 10M to 1K repeated up to 1000 times
        or until dtime "ticks".
        Print the number of 1K loops needed to see this tick.
        Answer a commented question.
        Split up a long line of output and do other prettying.
        Preset lognam in case GETLOG fails to overwrite it.
Patch from Craig.

From-SVN: r18861
1998-03-27 17:28:21 -07:00
..
libF77 Merge in g77-0.5.22. 1998-03-22 03:43:37 -07:00
libI77 Merge in g77-0.5.22. 1998-03-22 03:43:37 -07:00
libU77 u77-test.f: Don't bother declaring etime. 1998-03-27 17:28:21 -07:00
ChangeLog u77-test.f: Don't bother declaring etime. 1998-03-27 17:28:21 -07:00
ChangeLog.egcs
changes.netlib
configure Merge in g77-0.5.22. 1998-03-22 03:43:37 -07:00
configure.in Merge in g77-0.5.22. 1998-03-22 03:43:37 -07:00
disclaimer.netlib
f2c.h.in
f2cext.c
Makefile.in
permission.netlib
README
readme.netlib
TODO

970811

This directory contains the f2c library packaged for use with g77 to configure
and build automatically (in principle!) as part of the top-level configure and
make steps.  This depends on the makefile and configure fragments in ../f.

Some small changes have been made to the f2c distributions of lib[FI]77 which
come from <ftp:bell-labs.com/netlib/f2c/> and are maintained (excellently) by
David M. Gay <dmg@bell-labs.com>.  See the Notice files for copyright
information.  I'll try to get the changes rolled into the f2c distribution.

Files that come directly from netlib are either maintained in the
gcc/f/runtime/ directory under their original names or, if they
are not pertinent for g77's version of libf2c, under their original
names with `.netlib' appended.  For example, gcc/f/runtime/permissions.netlib
is a copy of f2c's top-level`permissions' file in the netlib distribution.
In this case, it applies only to the relevant portions of the libF77/ and
libI77/ directories; it does not apply to the libU77/ directory, which is
distributed under different licensing arrangements.  Similarly,
the `makefile.netlib' files in libF77/ and libI77/ are copies of
the respective `makefile' files in the netlib distribution, but
are not used when building g77's version of libf2c.

The `README.netlib' files in libF77/ and libI77/ thus might be
interesting, but should not be taken as guidelines for how to
configure and build libf2c in g77's distribution.

The packaging for auto-configuration was done by Dave Love <d.love@dl.ac.uk>.
Minor changes have been made by James Craig Burley <burley@gnu.ai.mit.edu>,
who probably broke things Dave had working.  :-)

Among the user-visible changes (choices) g77 makes in its
version of libf2c:

-  f2c.h configured to default to padding unformatted direct reads
   (#define Pad_UDread), because that's the behavior most users
   expect.

-  f2c.h configured to default to outputting leading zeros before
   decimal points in formatted and list-directed output, to be compatible
   with many other compilers (#define WANT_LEAD_0).  Either way is
   standard-conforming, however, and you should try to avoid writing
   code that assumes one format or another.

-  dtime_() and etime_() are from Dave Love's libU77, not from
   netlib's libF77.