1 /* Test mpf_cmp_si and mpf_cmp_z. 2 3 Copyright 2000, 2001, 2004, 2015 Free Software Foundation, Inc. 4 5 This file is part of the GNU MP Library test suite. 6 7 The GNU MP Library test suite is free software; you can redistribute it 8 and/or modify it under the terms of the GNU General Public License as 9 published by the Free Software Foundation; either version 3 of the License, 10 or (at your option) any later version. 11 12 The GNU MP Library test suite is distributed in the hope that it will be 13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General 15 Public License for more details. 16 17 You should have received a copy of the GNU General Public License along with 18 the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ 19 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include "gmp.h" 23 #include "gmp-impl.h" 24 #include "tests.h" 25 26 #define SGN(x) ((x) < 0 ? -1 : (x) == 0 ? 0 : 1) 27 28 void 29 check_data (void) 30 { 31 static const struct { 32 int a_base; 33 const char *a; 34 const char *b; 35 int want; 36 } data[] = { 37 { 10, "0", "1", -1 }, 38 { 10, "0", "0", 0 }, 39 { 10, "0", "-1", 1 }, 40 41 { 10, "1", "1", 0 }, 42 { 10, "1", "0", 1 }, 43 { 10, "1", "-1", 1 }, 44 45 { 10, "-1", "1", -1 }, 46 { 10, "-1", "0", -1 }, 47 { 10, "-1", "-1", 0 }, 48 49 { 10, "1.5", "2", -1 }, 50 { 10, "1.5", "1", 1 }, 51 { 10, "0.5", "1", -1 }, 52 53 { 10, "-1.5", "-2", 1 }, 54 { 10, "-1.5", "-1", -1 }, 55 { 10, "-0.5", "-1", 1 }, 56 57 { 16, "0", "-0x80000000", 1 }, 58 { 16, "80000000", "-0x80000000", 1 }, 59 { 16, "80000001", "-0x80000000", 1 }, 60 { 16, "-80000000", "-0x80000000", 0 }, 61 { 16, "-80000001", "-0x80000000", -1 }, 62 { 16, "-FF0080000001", "-0x80000000", -1 }, 63 64 { 16, "0", "-0x8000000000000000", 1 }, 65 { 16, "8000000000000000", "-0x8000000000000000", 1 }, 66 { 16, "8000000000000001", "-0x8000000000000000", 1 }, 67 { 16, "-8000000000000000", "-0x8000000000000000", 0 }, 68 { 16, "-8000000000000000.1", "-0x8000000000000000", -1 }, 69 { 16, "-FF008000000000000001", "-0x8000000000000000", -1 }, 70 71 { 16, "0", "-0x876543210FEDCBA9876543210000000", 1 }, 72 { 16, "876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", 1 }, 73 { 16, "876543210FEDCBA9876543210000001", "-0x876543210FEDCBA9876543210000000", 1 }, 74 { 16, "-876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", 0 }, 75 { 16, "-876543210FEDCBA9876543210000000.1", "-0x876543210FEDCBA9876543210000000", -1 }, 76 { 16, "-FF00876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", -1 }, 77 }; 78 79 mpf_t a; 80 mpz_t bz; 81 long b; 82 int got; 83 int i; 84 85 mpf_init2 (a, 128); 86 mpz_init (bz); 87 for (i = 0; i < numberof (data); i++) 88 { 89 mpf_set_str_or_abort (a, data[i].a, data[i].a_base); 90 mpz_set_str_or_abort (bz, data[i].b, 0); 91 92 if (mpz_fits_slong_p (bz)) 93 { 94 b = mpz_get_si (bz); 95 got = mpf_cmp_si (a, b); 96 if (SGN (got) != data[i].want) 97 { 98 printf ("mpf_cmp_si wrong on data[%d]\n", i); 99 printf (" a="); mpf_out_str (stdout, 10, 0, a); 100 printf (" (%s)\n", data[i].a); 101 printf (" b=%ld (%s)\n", b, data[i].b); 102 printf (" got=%d\n", got); 103 printf (" want=%d\n", data[i].want); 104 abort(); 105 } 106 } 107 108 got = mpf_cmp_z (a, bz); 109 if (SGN (got) != data[i].want) 110 { 111 b = mpz_get_si (bz); 112 printf ("mpf_cmp_z wrong on data[%d]\n", i); 113 printf (" a="); mpf_out_str (stdout, 10, 0, a); 114 printf (" (%s)\n", data[i].a); 115 printf (" b=%ld (%s)\n", b, data[i].b); 116 printf (" got=%d\n", got); 117 printf (" want=%d\n", data[i].want); 118 abort(); 119 } 120 } 121 122 mpf_clear (a); 123 mpz_clear (bz); 124 } 125 126 int 127 main (void) 128 { 129 tests_start (); 130 131 check_data (); 132 133 tests_end (); 134 exit (0); 135 } 136