1 /* 2 3 Copyright 2012, 2013 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 http://www.gnu.org/licenses/. */ 19 20 #include <limits.h> 21 #include <stdlib.h> 22 #include <stdio.h> 23 24 #include "testutils.h" 25 26 #define MAXBITS 400 27 #define COUNT 10000 28 29 static void 30 dump (const char *label, const mpz_t x) 31 { 32 char *buf = mpz_get_str (NULL, 16, x); 33 fprintf (stderr, "%s: %s\n", label, buf); 34 testfree (buf); 35 } 36 37 void 38 testlogops (int count) 39 { 40 unsigned i; 41 mpz_t a, b, res, ref; 42 mp_bitcnt_t c; 43 44 mpz_init (a); 45 mpz_init (b); 46 mpz_init (res); 47 mpz_init (ref); 48 49 for (i = 0; i < count; i++) 50 { 51 mini_random_op3 (OP_AND, MAXBITS, a, b, ref); 52 mpz_and (res, a, b); 53 if (mpz_cmp (res, ref)) 54 { 55 fprintf (stderr, "mpz_and failed:\n"); 56 dump ("a", a); 57 dump ("b", b); 58 dump ("r", res); 59 dump ("ref", ref); 60 abort (); 61 } 62 63 mini_random_op3 (OP_IOR, MAXBITS, a, b, ref); 64 mpz_ior (res, a, b); 65 if (mpz_cmp (res, ref)) 66 { 67 fprintf (stderr, "mpz_ior failed:\n"); 68 dump ("a", a); 69 dump ("b", b); 70 dump ("r", res); 71 dump ("ref", ref); 72 abort (); 73 } 74 75 mini_random_op3 (OP_XOR, MAXBITS, a, b, ref); 76 mpz_xor (res, a, b); 77 if (mpz_cmp (res, ref)) 78 { 79 fprintf (stderr, "mpz_xor failed:\n"); 80 dump ("a", a); 81 dump ("b", b); 82 dump ("r", res); 83 dump ("ref", ref); 84 abort (); 85 } 86 87 if (i % 8) { 88 c = 0; 89 mpz_mul_2exp (res, res, i % 8); 90 } else if (mpz_sgn (res) >= 0) { 91 c = mpz_odd_p (res) != 0; 92 mpz_tdiv_q_2exp (res, res, 1); 93 } else { 94 c = (~ (mp_bitcnt_t) 0) - 3; 95 mpz_set_ui (res, 11 << ((i >> 3)%4)); /* set 3 bits */ 96 } 97 98 if (mpz_popcount (res) + c != mpz_hamdist (a, b)) 99 { 100 fprintf (stderr, "mpz_popcount(r) + %lu and mpz_hamdist(a,b) differ:\n", c); 101 dump ("a", a); 102 dump ("b", b); 103 dump ("r", res); 104 fprintf (stderr, "mpz_popcount(r) = %lu:\n", mpz_popcount (res)); 105 fprintf (stderr, "mpz_hamdist(a,b) = %lu:\n", mpz_hamdist (a, b)); 106 abort (); 107 } 108 } 109 mpz_clear (a); 110 mpz_clear (b); 111 mpz_clear (res); 112 mpz_clear (ref); 113 } 114 115 void 116 testmain (int argc, char **argv) 117 { 118 testhalves (COUNT*2/3, testlogops); 119 testlogops (COUNT/3); 120 } 121