1 /* Test file for mpfr_cmpabs. 2 3 Copyright 2004-2018 Free Software Foundation, Inc. 4 Contributed by the AriC and Caramba 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 "mpfr-test.h" 24 25 #define PRINT_ERROR(s) do { printf ("%s", s); exit (1); } while (0) 26 27 int 28 main (void) 29 { 30 mpfr_t xx, yy; 31 int c; 32 33 tests_start_mpfr (); 34 35 mpfr_init2 (xx, 2); 36 mpfr_init2 (yy, 2); 37 38 mpfr_clear_erangeflag (); 39 MPFR_SET_NAN (xx); 40 MPFR_SET_NAN (yy); 41 if (mpfr_cmpabs (xx, yy) != 0) 42 PRINT_ERROR ("mpfr_cmpabs (NAN,NAN) returns non-zero\n"); 43 if (!mpfr_erangeflag_p ()) 44 PRINT_ERROR ("mpfr_cmpabs (NAN,NAN) doesn't set erange flag\n"); 45 46 mpfr_set_str_binary (xx, "0.10E0"); 47 mpfr_set_str_binary (yy, "-0.10E0"); 48 if (mpfr_cmpabs (xx, yy) != 0) 49 PRINT_ERROR ("mpfr_cmpabs (xx, yy) returns non-zero for prec=2\n"); 50 51 mpfr_set_prec (xx, 65); 52 mpfr_set_prec (yy, 65); 53 mpfr_set_str_binary (xx, "-0.10011010101000110101010000000011001001001110001011101011111011101E623"); 54 mpfr_set_str_binary (yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623"); 55 if (mpfr_cmpabs (xx, yy) <= 0) 56 PRINT_ERROR ("Error (1) in mpfr_cmpabs\n"); 57 58 mpfr_set_str_binary (xx, "-0.10100010001110110111000010001000010011111101000100011101000011100"); 59 mpfr_set_str_binary (yy, "-0.10100010001110110111000010001000010011111101000100011101000011011"); 60 if (mpfr_cmpabs (xx, yy) <= 0) 61 PRINT_ERROR ("Error (2) in mpfr_cmpabs\n"); 62 63 mpfr_set_prec (xx, 160); 64 mpfr_set_prec (yy, 160); 65 mpfr_set_str_binary (xx, "0.1E1"); 66 mpfr_set_str_binary (yy, "-0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100"); 67 if (mpfr_cmpabs (xx, yy) <= 0) 68 PRINT_ERROR ("Error (3) in mpfr_cmpabs\n"); 69 70 mpfr_set_prec(xx, 53); 71 mpfr_set_prec(yy, 200); 72 mpfr_set_ui (xx, 1, (mpfr_rnd_t) 0); 73 mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0); 74 if (mpfr_cmpabs(xx, yy) != 0) 75 PRINT_ERROR ("Error in mpfr_cmpabs: 1.0 != 1.0\n"); 76 77 mpfr_set_prec (yy, 31); 78 mpfr_set_str (xx, "-1.0000000002", 10, (mpfr_rnd_t) 0); 79 mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0); 80 if (!(mpfr_cmpabs(xx,yy)>0)) 81 PRINT_ERROR ("Error in mpfr_cmpabs: not 1.0000000002 > 1.0\n"); 82 mpfr_set_prec(yy, 53); 83 84 mpfr_set_ui(xx, 0, MPFR_RNDN); 85 mpfr_set_str (yy, "-0.1", 10, MPFR_RNDN); 86 if (mpfr_cmpabs(xx, yy) >= 0) 87 PRINT_ERROR ("Error in mpfr_cmpabs(0.0, 0.1)\n"); 88 89 mpfr_set_inf (xx, -1); 90 mpfr_set_str (yy, "23489745.0329", 10, MPFR_RNDN); 91 if (mpfr_cmpabs(xx, yy) <= 0) 92 PRINT_ERROR ("Error in mpfr_cmp(-Inf, 23489745.0329)\n"); 93 94 mpfr_set_inf (xx, 1); 95 mpfr_set_inf (yy, -1); 96 if (mpfr_cmpabs(xx, yy) != 0) 97 PRINT_ERROR ("Error in mpfr_cmpabs(Inf, -Inf)\n"); 98 99 mpfr_set_inf (yy, -1); 100 mpfr_set_str (xx, "2346.09234", 10, MPFR_RNDN); 101 if (mpfr_cmpabs (xx, yy) >= 0) 102 PRINT_ERROR ("Error in mpfr_cmpabs(-Inf, 2346.09234)\n"); 103 104 mpfr_set_prec (xx, 2); 105 mpfr_set_prec (yy, 128); 106 mpfr_set_str_binary (xx, "0.1E10"); 107 mpfr_set_str_binary (yy, 108 "0.100000000000000000000000000000000000000000000000" 109 "00000000000000000000000000000000000000000000001E10"); 110 if (mpfr_cmpabs (xx, yy) >= 0) 111 PRINT_ERROR ("Error in mpfr_cmpabs(10.235, 2346.09234)\n"); 112 mpfr_swap (xx, yy); 113 if (mpfr_cmpabs(xx, yy) <= 0) 114 PRINT_ERROR ("Error in mpfr_cmpabs(2346.09234, 10.235)\n"); 115 mpfr_swap (xx, yy); 116 117 /* Check for NAN */ 118 mpfr_set_nan (xx); 119 mpfr_clear_erangeflag (); 120 c = (mpfr_cmp) (xx, yy); 121 if (c != 0 || !mpfr_erangeflag_p () ) 122 { 123 printf ("NAN error (1)\n"); 124 exit (1); 125 } 126 mpfr_clear_erangeflag (); 127 c = (mpfr_cmp) (yy, xx); 128 if (c != 0 || !mpfr_erangeflag_p () ) 129 { 130 printf ("NAN error (2)\n"); 131 exit (1); 132 } 133 mpfr_clear_erangeflag (); 134 c = (mpfr_cmp) (xx, xx); 135 if (c != 0 || !mpfr_erangeflag_p () ) 136 { 137 printf ("NAN error (3)\n"); 138 exit (1); 139 } 140 141 mpfr_clear (xx); 142 mpfr_clear (yy); 143 144 tests_end_mpfr (); 145 return 0; 146 } 147