1 /* tpow_si -- test file for mpc_pow_si. 2 3 Copyright (C) 2009, 2010, 2011, 2012 INRIA 4 5 This file is part of GNU MPC. 6 7 GNU MPC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU Lesser General Public License as published by the 9 Free Software Foundation; either version 3 of the License, or (at your 10 option) any later version. 11 12 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for 15 more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with this program. If not, see http://www.gnu.org/licenses/ . 19 */ 20 21 #include <limits.h> /* for CHAR_BIT */ 22 #include "mpc-tests.h" 23 24 static void 25 compare_mpc_pow (mpfr_prec_t pmax, int iter, unsigned long nbits) 26 /* copied from tpow_ui.c and replaced unsigned by signed */ 27 { 28 mpfr_prec_t p; 29 mpc_t x, y, z, t; 30 long n; 31 int i, inex_pow, inex_pow_si; 32 mpc_rnd_t rnd; 33 34 mpc_init3 (y, sizeof (unsigned long) * CHAR_BIT, MPFR_PREC_MIN); 35 for (p = MPFR_PREC_MIN; p <= pmax; p++) 36 for (i = 0; i < iter; i++) 37 { 38 mpc_init2 (x, p); 39 mpc_init2 (z, p); 40 mpc_init2 (t, p); 41 mpc_urandom (x, rands); 42 n = (signed long) gmp_urandomb_ui (rands, nbits); 43 mpc_set_si (y, n, MPC_RNDNN); 44 for (rnd = 0; rnd < 16; rnd ++) 45 { 46 inex_pow = mpc_pow (z, x, y, rnd); 47 inex_pow_si = mpc_pow_si (t, x, n, rnd); 48 if (mpc_cmp (z, t) != 0) 49 { 50 printf ("mpc_pow and mpc_pow_si differ for x="); 51 mpc_out_str (stdout, 10, 0, x, MPC_RNDNN); 52 printf (" n=%li\n", n); 53 printf ("mpc_pow gives "); 54 mpc_out_str (stdout, 10, 0, z, MPC_RNDNN); 55 printf ("\nmpc_pow_si gives "); 56 mpc_out_str (stdout, 10, 0, t, MPC_RNDNN); 57 printf ("\n"); 58 exit (1); 59 } 60 if (inex_pow != inex_pow_si) 61 { 62 printf ("mpc_pow and mpc_pow_si give different flags for x="); 63 mpc_out_str (stdout, 10, 0, x, MPC_RNDNN); 64 printf (" n=%li\n", n); 65 printf ("mpc_pow gives %d\n", inex_pow); 66 printf ("mpc_pow_si gives %d\n", inex_pow_si); 67 exit (1); 68 } 69 } 70 mpc_clear (x); 71 mpc_clear (z); 72 mpc_clear (t); 73 } 74 mpc_clear (y); 75 } 76 77 #define MPC_FUNCTION_CALL \ 78 P[0].mpc_inex = mpc_pow_si (P[1].mpc, P[2].mpc, P[3].si, P[4].mpc_rnd) 79 #define MPC_FUNCTION_CALL_REUSE_OP1 \ 80 P[0].mpc_inex = mpc_pow_si (P[1].mpc, P[1].mpc, P[3].si, P[4].mpc_rnd) 81 82 #include "data_check.tpl" 83 84 int 85 main (void) 86 { 87 test_start (); 88 89 data_check_template ("pow_si.dsc", "pow_si.dat"); 90 91 compare_mpc_pow (100, 5, 19); 92 93 test_end (); 94 95 return 0; 96 } 97