mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-27 19:05:47 +08:00
a051827081
* 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 |
||
---|---|---|
.. | ||
libF77 | ||
libI77 | ||
libU77 | ||
ChangeLog | ||
ChangeLog.egcs | ||
changes.netlib | ||
configure | ||
configure.in | ||
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.