/* Test file for mpfr_cmp_d. Copyright 1999, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by the Arenaire 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 #include #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, MPFR_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, MPFR_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, MPFR_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, MPFR_RNDN); putchar('\n'); exit(1); } mpfr_set_ui (x, 0, MPFR_RNDZ); mpfr_neg (x, x, MPFR_RNDZ); if (mpfr_cmp_d (x, 0.0)) { printf("Error in mpfr_cmp_d 0.0 and "); mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n'); exit(1); } mpfr_set_ui (x, 0, MPFR_RNDN); mpfr_ui_div (x, 1, x, MPFR_RNDU); if (mpfr_cmp_d (x, 0.0) == 0) { printf ("Error in mpfr_cmp_d (Inf, 0)\n"); exit (1); } #if !defined(MPFR_ERRDIVZERO) /* 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); } #endif /* MPFR_ERRDIVZERO */ mpfr_clear(x); tests_end_mpfr (); return 0; }