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Diffstat (limited to 'mpfr/tests/tminmax.c')
| -rw-r--r-- | mpfr/tests/tminmax.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/mpfr/tests/tminmax.c b/mpfr/tests/tminmax.c new file mode 100644 index 0000000000..cdd9b4aab4 --- /dev/null +++ b/mpfr/tests/tminmax.c @@ -0,0 +1,171 @@ +/* Test file for mpfr_min & mpfr_max. + +Copyright 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc. +Contributed by the AriC and Caramel 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 3 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.LESSER. If not, see +http://www.gnu.org/licenses/ or 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" + +int +main (void) +{ + mpfr_t x, y, z; + + tests_start_mpfr (); + + mpfr_init (x); + mpfr_init (y); + mpfr_init (z); + + /* case x=NaN && y=NAN */ + mpfr_set_nan (x); + mpfr_set_nan (y); + mpfr_min (z, x, y, MPFR_RNDN); + if (!mpfr_nan_p (z)) + { + printf ("Error in mpfr_min (NaN, NaN)\n"); + exit (1); + } + mpfr_max (z, x, y, MPFR_RNDN); + if (!mpfr_nan_p (z)) + { + printf ("Error in mpfr_max (NaN, NaN)\n"); + exit (1); + } + /* case x=NaN */ + mpfr_set_nan (x); + mpfr_set_ui (y, 0, MPFR_RNDN); + mpfr_min (z, x, y, MPFR_RNDN); + if (mpfr_cmp_ui (z, 0)) + { + printf ("Error in mpfr_min (NaN, 0)\n"); + exit (1); + } + mpfr_min (z, y, x, MPFR_RNDN); + if (mpfr_cmp_ui (z, 0)) + { + printf ("Error in mpfr_min (0, NaN)\n"); + exit (1); + } + mpfr_max (z, x, y, MPFR_RNDN); + if (mpfr_cmp_ui (z, 0)) + { + printf ("Error in mpfr_max (NaN, 0)\n"); + exit (1); + } + mpfr_max (z, y, x, MPFR_RNDN); + if (mpfr_cmp_ui (z, 0)) + { + printf ("Error in mpfr_max (0, NaN)\n"); + exit (1); + } + /* Case x=0+ and x=0- */ + mpfr_set_ui (x, 0, MPFR_RNDN); + mpfr_set_ui (y, 0, MPFR_RNDN); MPFR_SET_NEG(y); + mpfr_max (z, x, y, MPFR_RNDN); + if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z)) + { + printf ("Error in mpfr_max (0+, 0-)\n"); + exit (1); + } + mpfr_min (z, x, y, MPFR_RNDN); + if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z)) + { + printf ("Error in mpfr_min (0+, 0-)\n"); + exit (1); + } + /* Case x=0- and y=0+ */ + mpfr_set_ui (x, 0, MPFR_RNDN); MPFR_SET_NEG(x); + mpfr_set_ui (y, 0, MPFR_RNDN); + mpfr_max (z, x, y, MPFR_RNDN); + if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z)) + { + printf ("Error in mpfr_max (0+, 0-)\n"); + exit (1); + } + mpfr_min (z, x, y, MPFR_RNDN); + if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z)) + { + printf ("Error in mpfr_min (0+, 0-)\n"); + exit (1); + } + + /* case x=+Inf */ + mpfr_set_inf (x, 1); + mpfr_set_si (y, -12, MPFR_RNDN); + mpfr_min (z, x, y, MPFR_RNDN); + if ( mpfr_cmp_si (z, -12) ) + { + printf ("Error in mpfr_min (+Inf, -12)\n"); + exit (1); + } + mpfr_max (z, x, y, MPFR_RNDN); + if ( !MPFR_IS_INF(z) || MPFR_IS_NEG(z) ) + { + printf ("Error in mpfr_max (+Inf, 12)\n"); + exit (1); + } + /* case x=-Inf */ + mpfr_set_inf (x, -1); + mpfr_set_ui (y, 12, MPFR_RNDN); + mpfr_max (z, x, y, MPFR_RNDN); + if ( mpfr_cmp_ui (z, 12) ) + { + printf ("Error in mpfr_max (-Inf, 12)\n"); + exit (1); + } + mpfr_min (z, x, y, MPFR_RNDN); + if ( !MPFR_IS_INF(z) || MPFR_IS_POS(z) ) + { + printf ("Error in mpfr_min (-Inf, 12)\n"); + exit (1); + } + + /* case x=17 and y=42 */ + mpfr_set_ui (x, 17, MPFR_RNDN); + mpfr_set_ui (y, 42, MPFR_RNDN); + mpfr_max (z, x, y, MPFR_RNDN); + if ( mpfr_cmp_ui (z, 42) ) + { + printf ("Error in mpfr_max (17, 42)\n"); + exit (1); + } + mpfr_max (z, y, x, MPFR_RNDN); + if ( mpfr_cmp_ui (z, 42) ) + { + printf ("Error in mpfr_max (42, 17)\n"); + exit (1); + } + mpfr_min (z, y, x, MPFR_RNDN); + if ( mpfr_cmp_ui (z, 17) ) + { + printf ("Error in mpfr_min (42, 17)\n"); + exit (1); + } + + mpfr_clear (x); + mpfr_clear (y); + mpfr_clear (z); + + tests_end_mpfr (); + return 0; +} |