1 /* Test file for mpfr_cmpabs. 2 3 Copyright 2004, 2005, 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 23 #include <stdio.h> 24 #include <stdlib.h> 25 26 #include "mpfr-test.h" 27 28 #define ERROR(s) do { printf(s); exit(1); } while (0) 29 30 int 31 main (void) 32 { 33 mpfr_t xx, yy; 34 int c; 35 36 tests_start_mpfr (); 37 38 mpfr_init2 (xx, 2); 39 mpfr_init2 (yy, 2); 40 41 mpfr_clear_erangeflag (); 42 MPFR_SET_NAN (xx); 43 MPFR_SET_NAN (yy); 44 if (mpfr_cmpabs (xx, yy) != 0) 45 ERROR ("mpfr_cmpabs (NAN,NAN) returns non-zero\n"); 46 if (!mpfr_erangeflag_p ()) 47 ERROR ("mpfr_cmpabs (NAN,NAN) doesn't set erange flag\n"); 48 49 mpfr_set_str_binary (xx, "0.10E0"); 50 mpfr_set_str_binary (yy, "-0.10E0"); 51 if (mpfr_cmpabs (xx, yy) != 0) 52 ERROR ("mpfr_cmpabs (xx, yy) returns non-zero for prec=2\n"); 53 54 mpfr_set_prec (xx, 65); 55 mpfr_set_prec (yy, 65); 56 mpfr_set_str_binary (xx, "-0.10011010101000110101010000000011001001001110001011101011111011101E623"); 57 mpfr_set_str_binary (yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623"); 58 if (mpfr_cmpabs (xx, yy) <= 0) 59 ERROR ("Error (1) in mpfr_cmpabs\n"); 60 61 mpfr_set_str_binary (xx, "-0.10100010001110110111000010001000010011111101000100011101000011100"); 62 mpfr_set_str_binary (yy, "-0.10100010001110110111000010001000010011111101000100011101000011011"); 63 if (mpfr_cmpabs (xx, yy) <= 0) 64 ERROR ("Error (2) in mpfr_cmpabs\n"); 65 66 mpfr_set_prec (xx, 160); 67 mpfr_set_prec (yy, 160); 68 mpfr_set_str_binary (xx, "0.1E1"); 69 mpfr_set_str_binary (yy, "-0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100"); 70 if (mpfr_cmpabs (xx, yy) <= 0) 71 ERROR ("Error (3) in mpfr_cmpabs\n"); 72 73 mpfr_set_prec(xx, 53); 74 mpfr_set_prec(yy, 200); 75 mpfr_set_ui (xx, 1, (mpfr_rnd_t) 0); 76 mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0); 77 if (mpfr_cmpabs(xx, yy) != 0) 78 ERROR ("Error in mpfr_cmpabs: 1.0 != 1.0\n"); 79 80 mpfr_set_prec (yy, 31); 81 mpfr_set_str (xx, "-1.0000000002", 10, (mpfr_rnd_t) 0); 82 mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0); 83 if (!(mpfr_cmpabs(xx,yy)>0)) 84 ERROR ("Error in mpfr_cmpabs: not 1.0000000002 > 1.0\n"); 85 mpfr_set_prec(yy, 53); 86 87 mpfr_set_ui(xx, 0, MPFR_RNDN); 88 mpfr_set_str (yy, "-0.1", 10, MPFR_RNDN); 89 if (mpfr_cmpabs(xx, yy) >= 0) 90 ERROR ("Error in mpfr_cmpabs(0.0, 0.1)\n"); 91 92 mpfr_set_inf (xx, -1); 93 mpfr_set_str (yy, "23489745.0329", 10, MPFR_RNDN); 94 if (mpfr_cmpabs(xx, yy) <= 0) 95 ERROR ("Error in mpfr_cmp(-Inf, 23489745.0329)\n"); 96 97 mpfr_set_inf (xx, 1); 98 mpfr_set_inf (yy, -1); 99 if (mpfr_cmpabs(xx, yy) != 0) 100 ERROR ("Error in mpfr_cmpabs(Inf, -Inf)\n"); 101 102 mpfr_set_inf (yy, -1); 103 mpfr_set_str (xx, "2346.09234", 10, MPFR_RNDN); 104 if (mpfr_cmpabs (xx, yy) >= 0) 105 ERROR ("Error in mpfr_cmpabs(-Inf, 2346.09234)\n"); 106 107 mpfr_set_prec (xx, 2); 108 mpfr_set_prec (yy, 128); 109 mpfr_set_str_binary (xx, "0.1E10"); 110 mpfr_set_str_binary (yy, 111 "0.100000000000000000000000000000000000000000000000" 112 "00000000000000000000000000000000000000000000001E10"); 113 if (mpfr_cmpabs (xx, yy) >= 0) 114 ERROR ("Error in mpfr_cmpabs(10.235, 2346.09234)\n"); 115 mpfr_swap (xx, yy); 116 if (mpfr_cmpabs(xx, yy) <= 0) 117 ERROR ("Error in mpfr_cmpabs(2346.09234, 10.235)\n"); 118 mpfr_swap (xx, yy); 119 120 /* Check for NAN */ 121 mpfr_set_nan (xx); 122 mpfr_clear_erangeflag (); 123 c = (mpfr_cmp) (xx, yy); 124 if (c != 0 || !mpfr_erangeflag_p () ) 125 { 126 printf ("NAN error (1)\n"); 127 exit (1); 128 } 129 mpfr_clear_erangeflag (); 130 c = (mpfr_cmp) (yy, xx); 131 if (c != 0 || !mpfr_erangeflag_p () ) 132 { 133 printf ("NAN error (2)\n"); 134 exit (1); 135 } 136 mpfr_clear_erangeflag (); 137 c = (mpfr_cmp) (xx, xx); 138 if (c != 0 || !mpfr_erangeflag_p () ) 139 { 140 printf ("NAN error (3)\n"); 141 exit (1); 142 } 143 144 mpfr_clear (xx); 145 mpfr_clear (yy); 146 147 tests_end_mpfr (); 148 return 0; 149 } 150