| /* Test file for mpfr_cmp_d. |
| |
| Copyright 1999, 2001, 2002, 2003, 2004, 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" |
| |
| int |
| main (void) |
| { |
| mpfr_t x; |
| int c; |
| |
| tests_start_mpfr (); |
| |
| mpfr_init2(x, IEEE_DBL_MANT_DIG); |
| |
| mpfr_set_d (x, 2.34763465, GMP_RNDN); |
| if (mpfr_cmp_d(x, 2.34763465)!=0) { |
| printf("Error in mpfr_cmp_d 2.34763465 and "); |
| mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n'); |
| exit(1); |
| } |
| if (mpfr_cmp_d(x, 2.345)<=0) { |
| printf("Error in mpfr_cmp_d 2.345 and "); |
| mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n'); |
| exit(1); |
| } |
| if (mpfr_cmp_d(x, 2.4)>=0) { |
| printf("Error in mpfr_cmp_d 2.4 and "); |
| mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n'); |
| exit(1); |
| } |
| |
| mpfr_set_ui (x, 0, GMP_RNDZ); |
| mpfr_neg (x, x, GMP_RNDZ); |
| if (mpfr_cmp_d (x, 0.0)) { |
| printf("Error in mpfr_cmp_d 0.0 and "); |
| mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n'); |
| exit(1); |
| } |
| |
| mpfr_set_ui (x, 0, GMP_RNDN); |
| mpfr_ui_div (x, 1, x, GMP_RNDU); |
| if (mpfr_cmp_d (x, 0.0) == 0) |
| { |
| printf ("Error in mpfr_cmp_d (Inf, 0)\n"); |
| exit (1); |
| } |
| |
| /* Check NAN */ |
| mpfr_clear_erangeflag (); |
| c = mpfr_cmp_d (x, DBL_NAN); |
| if (c != 0 || !mpfr_erangeflag_p ()) |
| { |
| printf ("ERROR for NAN (1)\n"); |
| #ifdef MPFR_NANISNAN |
| printf ("The reason is that NAN == NAN. Please look at the configure " |
| "output\nand Section \"In case of problem\" of the INSTALL " |
| "file.\n"); |
| #endif |
| exit (1); |
| } |
| mpfr_set_nan (x); |
| mpfr_clear_erangeflag (); |
| c = mpfr_cmp_d (x, 2.0); |
| if (c != 0 || !mpfr_erangeflag_p ()) |
| { |
| printf ("ERROR for NAN (2)\n"); |
| #ifdef MPFR_NANISNAN |
| printf ("The reason is that NAN == NAN. Please look at the configure " |
| "output\nand Section \"In case of problem\" of the INSTALL " |
| "file.\n"); |
| #endif |
| exit (1); |
| } |
| |
| mpfr_clear(x); |
| |
| tests_end_mpfr (); |
| return 0; |
| } |