| /* Test file for mpfr_dim. |
| |
| Copyright 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
| Contributed by the Arenaire and Cacao projects, INRIA. |
| |
| This file is part of the GNU MPFR Library. |
| |
| The GNU MPFR Library is free software; you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. |
| |
| The GNU 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 Lesser General Public |
| License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "mpfr-test.h" |
| |
| #define TEST_FUNCTION mpfr_dim |
| #define TWO_ARGS |
| #define TEST_RANDOM_EMIN -20 |
| #define TEST_RANDOM_EMAX 20 |
| #define TGENERIC_NOWARNING 1 |
| #include "tgeneric.c" |
| |
| int |
| main (void) |
| { |
| mpfr_t x, y, z; |
| |
| tests_start_mpfr (); |
| |
| mpfr_init (x); |
| mpfr_init (y); |
| mpfr_init (z); |
| |
| /* case x=NaN */ |
| mpfr_set_nan (x); |
| mpfr_set_ui (y, 0, GMP_RNDN); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (!mpfr_nan_p (z)) |
| { |
| printf ("Error in mpfr_dim (NaN, 0)\n"); |
| exit (1); |
| } |
| |
| /* case x=+Inf */ |
| mpfr_set_inf (x, 1); |
| mpfr_set_ui (y, 0, GMP_RNDN); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (!mpfr_inf_p (z) || mpfr_sgn (z) < 0) |
| { |
| printf ("Error in mpfr_dim (+Inf, 0)\n"); |
| exit (1); |
| } |
| |
| /* case x=-Inf */ |
| mpfr_set_inf (x, -1); |
| mpfr_set_ui (y, 0, GMP_RNDN); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (mpfr_cmp_ui (z, 0) || mpfr_sgn (z) < 0) |
| { |
| printf ("Error in mpfr_dim (-Inf, 0)\n"); |
| exit (1); |
| } |
| |
| /* case x=y=+Inf */ |
| mpfr_set_inf (x, 1); |
| mpfr_set_inf (y, 1); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (mpfr_cmp_ui (z, 0) || mpfr_sgn (z) < 0) |
| { |
| printf ("Error in mpfr_dim (+Inf, +Inf)\n"); |
| exit (1); |
| } |
| |
| /* case x > y */ |
| mpfr_set_ui (x, 2, GMP_RNDN); |
| mpfr_set_ui (y, 1, GMP_RNDN); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (mpfr_cmp_ui (z, 1)) |
| { |
| printf ("Error in mpfr_dim (2, 1)\n"); |
| exit (1); |
| } |
| |
| /* case x < y */ |
| mpfr_set_ui (x, 1, GMP_RNDN); |
| mpfr_set_ui (y, 2, GMP_RNDN); |
| mpfr_dim (z, x, y, GMP_RNDN); |
| if (mpfr_cmp_ui (z, 0)) |
| { |
| printf ("Error in mpfr_dim (1, 2)\n"); |
| exit (1); |
| } |
| |
| mpfr_clear (x); |
| mpfr_clear (y); |
| mpfr_clear (z); |
| |
| test_generic (2, 220, 42); |
| |
| tests_end_mpfr (); |
| return 0; |
| } |