1 /* Test file for mpfr_cmp_ld. 2 3 Copyright 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc. 4 Contributed by the AriC and Caramel projects, INRIA. 5 6 This file is part of the GNU MPFR Library. 7 8 The GNU MPFR Library is free software; you can redistribute it and/or modify 9 it under the terms of the GNU Lesser General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or (at your 11 option) any later version. 12 13 The GNU MPFR Library is distributed in the hope that it will be useful, but 14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 16 License for more details. 17 18 You should have received a copy of the GNU Lesser General Public License 19 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 20 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 21 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ 22 #include <stdio.h> 23 #include <stdlib.h> 24 25 #include "mpfr-test.h" 26 27 int 28 main (void) 29 { 30 mpfr_t x; 31 int c; 32 33 tests_start_mpfr (); 34 35 mpfr_init2(x, MPFR_LDBL_MANT_DIG); 36 37 mpfr_set_ld (x, 2.34763465L, MPFR_RNDN); 38 if (mpfr_cmp_ld(x, 2.34763465L)!=0) { 39 printf("Error in mpfr_cmp_ld 2.34763465 and "); 40 mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n'); 41 exit(1); 42 } 43 if (mpfr_cmp_ld(x, 2.345L)<=0) { 44 printf("Error in mpfr_cmp_ld 2.345 and "); 45 mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n'); 46 exit(1); 47 } 48 if (mpfr_cmp_ld(x, 2.4L)>=0) { 49 printf("Error in mpfr_cmp_ld 2.4 and "); 50 mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n'); 51 exit(1); 52 } 53 54 mpfr_set_ui (x, 0, MPFR_RNDZ); 55 mpfr_neg (x, x, MPFR_RNDZ); 56 if (mpfr_cmp_ld (x, 0.0)) { 57 printf("Error in mpfr_cmp_ld 0.0 and "); 58 mpfr_out_str(stdout, 10, 0, x, MPFR_RNDN); putchar('\n'); 59 exit(1); 60 } 61 62 mpfr_set_ui (x, 0, MPFR_RNDN); 63 mpfr_ui_div (x, 1, x, MPFR_RNDU); 64 if (mpfr_cmp_ld (x, 0.0) == 0) 65 { 66 printf ("Error in mpfr_cmp_ld (Inf, 0)\n"); 67 exit (1); 68 } 69 70 #if !defined(MPFR_ERRDIVZERO) 71 /* Check NAN */ 72 mpfr_clear_erangeflag (); 73 c = mpfr_cmp_ld (x, DBL_NAN); 74 if (c != 0 || !mpfr_erangeflag_p ()) 75 { 76 printf ("ERROR for NAN (1)\n"); 77 #ifdef MPFR_NANISNAN 78 printf ("The reason is that NAN == NAN. Please look at the configure " 79 "output\nand Section \"In case of problem\" of the INSTALL " 80 "file.\n"); 81 #endif 82 exit (1); 83 } 84 mpfr_set_nan (x); 85 mpfr_clear_erangeflag (); 86 c = mpfr_cmp_ld (x, 2.0); 87 if (c != 0 || !mpfr_erangeflag_p ()) 88 { 89 printf ("ERROR for NAN (2)\n"); 90 #ifdef MPFR_NANISNAN 91 printf ("The reason is that NAN == NAN. Please look at the configure " 92 "output\nand Section \"In case of problem\" of the INSTALL " 93 "file.\n"); 94 #endif 95 exit (1); 96 } 97 #endif /* MPFR_ERRDIVZERO */ 98 99 mpfr_clear(x); 100 101 tests_end_mpfr (); 102 return 0; 103 } 104 105 106