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| author | Toon Moene <toon@moene.indiv.nluug.nl> | 2002-11-20 00:17:36 +0100 |
|---|---|---|
| committer | Toon Moene <toon@gcc.gnu.org> | 2002-11-19 23:17:36 +0000 |
| commit | 27dcc451f40505497c3c7788dfd935d4afa897cb (patch) | |
| tree | 3b88d6d3847d7785e7d7a32ceaeb9108cdb7125a | |
| parent | efcc70370b9319ec419e220cece0e8c82642c298 (diff) | |
| download | gcc-27dcc451f40505497c3c7788dfd935d4afa897cb.zip gcc-27dcc451f40505497c3c7788dfd935d4afa897cb.tar.gz gcc-27dcc451f40505497c3c7788dfd935d4afa897cb.tar.bz2 | |
re PR fortran/8587 ((double complex zero)**(double prec number) = NAN instead of zero)
2002-11-19 Toon Moene <toon@moene.indiv.nluug.nl>
PR fortran/8587
* libF77/pow_zz.c: Handle (0.0, 0.0) ** power.
2002-11-19 Toon Moene <toon@moene.indiv.nluug.nl>
PR fortran/8587
* news.texi: Show PR fortran/8587 fixed.
From-SVN: r59280
| -rw-r--r-- | gcc/f/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/f/news.texi | 4 | ||||
| -rw-r--r-- | libf2c/ChangeLog | 5 | ||||
| -rw-r--r-- | libf2c/libF77/pow_zz.c | 6 |
4 files changed, 19 insertions, 1 deletions
diff --git a/gcc/f/ChangeLog b/gcc/f/ChangeLog index 4960f2f..2142b4c 100644 --- a/gcc/f/ChangeLog +++ b/gcc/f/ChangeLog @@ -1,3 +1,8 @@ +2002-11-19 Toon Moene <toon@moene.indiv.nluug.nl> + + PR fortran/8587 + * news.texi: Show PR fortran/8587 fixed. + 2002-11-19 Jason Thorpe <thorpej@wasabisystems.com> * g77spec.c (lang_specific_spec_functions): New. diff --git a/gcc/f/news.texi b/gcc/f/news.texi index 24cec0a..2d0dc0f 100644 --- a/gcc/f/news.texi +++ b/gcc/f/news.texi @@ -10,7 +10,7 @@ @c in the standalone derivations of this file (e.g. NEWS). @set copyrights-news 1995,1996,1997,1998,1999,2000,2001,2002 -@set last-update-news 2002-11-02 +@set last-update-news 2002-11-19 @include root.texi @@ -181,6 +181,8 @@ gave wrong results) (libf2c) DATE_AND_TIME milliseconds field inactive on Windows @item 7388 Incorrect output with 0-based array of characters +@item 8587 +Double complex zero ** double precision number -> NaN instead of zero @end table @item Richard Henderson (@email{rth@@redhat.com}) analysed and improved the handling diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog index e06717f..7e10295 100644 --- a/libf2c/ChangeLog +++ b/libf2c/ChangeLog @@ -1,3 +1,8 @@ +2002-11-19 Toon Moene <toon@moene.indiv.nluug.nl> + + PR fortran/8587 + * libF77/pow_zz.c: Handle (0.0, 0.0) ** power. + 2002-09-23 Zack Weinberg <zack@codesourcery.com> * libF77/Version.c: Rename junk to __LIBF77_VERSION__. Add diff --git a/libf2c/libF77/pow_zz.c b/libf2c/libF77/pow_zz.c index 522b639..d5cfbf3 100644 --- a/libf2c/libF77/pow_zz.c +++ b/libf2c/libF77/pow_zz.c @@ -8,6 +8,12 @@ pow_zz (doublecomplex * r, doublecomplex * a, doublecomplex * b) { double logr, logi, x, y; + if (a->r == 0.0 && a->i == 0.0) + { + /* Algorithm below doesn't cope. */ + r->r = r->i = 0.0; + return; + } logr = log (f__cabs (a->r, a->i)); logi = atan2 (a->i, a->r); |