diff options
Diffstat (limited to 'mpfr/tests/tfma.c')
| -rw-r--r-- | mpfr/tests/tfma.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/mpfr/tests/tfma.c b/mpfr/tests/tfma.c index d661e78a1..f196b50ea 100644 --- a/mpfr/tests/tfma.c +++ b/mpfr/tests/tfma.c @@ -1,6 +1,6 @@ /* Test file for mpfr_fma. -Copyright (C) 2001 Free Software Foundation. +Copyright 2001 Free Software Foundation. Adapted from tarctan.c. This file is part of the MPFR Library. @@ -16,7 +16,7 @@ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License -along with the MPFR Library; see the file COPYING.LIB. If not, write to +along with the MPFR Library; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ @@ -49,6 +49,19 @@ main (int argc, char *argv[]) mpfr_set_d (z, 0.375, GMP_RNDN); mpfr_fma (s, x, y, z, GMP_RNDU); /* result is 0 */ + mpfr_set_prec (x, 27); + mpfr_set_prec (y, 27); + mpfr_set_prec (z, 27); + mpfr_set_prec (s, 27); + mpfr_set_str_raw (x, "1.11111111111111111111111111e-1"); + mpfr_set (y, x, GMP_RNDN); + mpfr_set_str_raw (z, "-1.00011110100011001011001001e-1"); + if (mpfr_fma (s, x, y, z, GMP_RNDN) >= 0) + { + fprintf (stderr, "Wrong inexact flag for x=y=1-2^(-27)\n"); + exit (1); + } + MPFR_SET_NAN(x); mpfr_random(y); mpfr_random(z); @@ -294,6 +307,13 @@ main (int argc, char *argv[]) { fprintf (stderr, "Wrong inexact flag for rnd=%s: expected %d, got %d\n", mpfr_print_rnd_mode (rnd), compare, inexact); + fprintf (stderr, "x="); mpfr_out_str (stderr, 2, 0, x, GMP_RNDN); + fprintf (stderr, " y="); mpfr_out_str (stderr, 2, 0, y, GMP_RNDN); + fprintf (stderr, " z="); mpfr_out_str (stderr, 2, 0, z, GMP_RNDN); + fprintf (stderr, " s="); mpfr_out_str (stderr, 2, 0, s, GMP_RNDN); + fprintf (stderr, "\n"); + fprintf (stderr, "z=%1.20e s=%1.20e\n", mpfr_get_d1 (z), + mpfr_get_d1 (s)); exit (1); } } |