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author | Kent Boortz <kent@mysql.se> | 2000-08-02 18:48:06 +0200 |
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committer | Kent Boortz <kent@mysql.se> | 2000-08-02 18:48:06 +0200 |
commit | efe82bb8e93212508c8b292754422df81ef8fbc2 (patch) | |
tree | 6789e688820ffb0661381f240f10f765a8286025 /mpfr/tests/tround.c | |
parent | a54783120893faf758d85daee13c0a88c3296553 (diff) | |
download | gmp-efe82bb8e93212508c8b292754422df81ef8fbc2.tar.gz |
Experimental version of mpfr
Diffstat (limited to 'mpfr/tests/tround.c')
-rw-r--r-- | mpfr/tests/tround.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/mpfr/tests/tround.c b/mpfr/tests/tround.c new file mode 100644 index 000000000..3ccd6ff7f --- /dev/null +++ b/mpfr/tests/tround.c @@ -0,0 +1,45 @@ +/* Test file for mpfr_round. + +Copyright (C) 1999 PolKA project, Inria Lorraine and Loria + +This file is part of the MPFR Library. + +The MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Library General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at your +option) any later version. + +The MPFR Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public +License for more details. + +You should have received a copy of the GNU Library General Public License +along with the MPFR Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include <stdio.h> +#include <stdlib.h> +#include "gmp.h" +#include "mpfr.h" + +int +main() +{ + mpfr_t x; + + /* checks that rounds to nearest sets the last + bit to zero in case of equal distance */ + mpfr_init2(x, 2); + mpfr_set_d(x, 5.0, 0); + if (mpfr_get_d(x) != 4.0) { printf("Error in tround: got %1.1f instead of 4.0\n",mpfr_get_d(x)); } + + mpfr_set_d(x, 0.00098539467465030839, 0); + + mpfr_set_d(x, 9.84891017624509146344e-01, GMP_RNDU); + if (mpfr_get_d(x) != 1.0) { printf("Error in tround: got %f instead of 1.0\n",mpfr_get_d(x)); exit(1); } + + mpfr_clear(x); + exit (0); +} |