1 /* 2 3 Copyright 2012, 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 <assert.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 typedef void div_func (mpz_t, const mpz_t, mp_bitcnt_t); 38 39 void 40 testmain (int argc, char **argv) 41 { 42 unsigned i; 43 mpz_t a, res, ref; 44 mp_bitcnt_t b; 45 46 mpz_init (a); 47 mpz_init (res); 48 mpz_init (ref); 49 50 for (i = 0; i < COUNT; i++) 51 { 52 unsigned j; 53 for (j = 0; j < 6; j++) 54 { 55 static const enum hex_random_op ops[6] = 56 { 57 OP_CDIV_Q_2, OP_CDIV_R_2, 58 OP_FDIV_Q_2, OP_FDIV_R_2, 59 OP_TDIV_Q_2, OP_TDIV_R_2 60 }; 61 static const char *name[6] = 62 { 63 "cdiv_q", "cdiv_r", 64 "fdiv_q", "fdiv_r", 65 "tdiv_q", "tdiv_r" 66 }; 67 static div_func * const div [6] = 68 { 69 mpz_cdiv_q_2exp, mpz_cdiv_r_2exp, 70 mpz_fdiv_q_2exp, mpz_fdiv_r_2exp, 71 mpz_tdiv_q_2exp, mpz_tdiv_r_2exp 72 }; 73 74 mini_random_bit_op (ops[j], MAXBITS, a, &b, ref); 75 div[j] (res, a, b); 76 if (mpz_cmp (ref, res)) 77 { 78 fprintf (stderr, "mpz_%s_2exp failed:\n", name[j]); 79 dump ("a", a); 80 fprintf (stderr, "b: %lu\n", b); 81 dump ("r", res); 82 dump ("ref", ref); 83 abort (); 84 } 85 } 86 } 87 mpz_clear (a); 88 mpz_clear (res); 89 mpz_clear (ref); 90 } 91