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108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/* tui_div -- test file for mpc_ui_div.
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Copyright (C) 2008, 2011, 2012, 2013 INRIA
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This file is part of GNU MPC.
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GNU MPC is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see http://www.gnu.org/licenses/ .
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*/
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#include "mpc-tests.h"
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static void
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test_special (void)
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{
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mpc_t a, b;
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mpc_init2 (a, 10);
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mpc_init2 (b, 10);
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mpc_set_ui_ui (a, 2, 4, MPC_RNDNN);
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mpc_ui_div (b, 10, a, MPC_RNDNN);
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if (mpc_cmp_si_si (b, 1, -2) != 0)
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{
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printf ("10/(2,4) failed\n");
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printf ("expected (1,-2)\n");
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printf ("got ");
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mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
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printf ("\n");
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exit (1);
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}
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/* 0/(-1-0*I) should give (-0, +0) */
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mpfr_set_str (mpc_realref(a), "-1", 10, MPFR_RNDN);
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mpfr_set_str (mpc_imagref(a), "-0", 10, MPFR_RNDN);
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mpc_ui_div (b, 0, a, MPC_RNDNN);
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if ((mpc_cmp_si_si (b, 0, 0) != 0) || (MPFR_SIGN (mpc_realref(b)) > 0)
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|| (MPFR_SIGN (mpc_imagref(b)) < 0))
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{
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printf ("0/(-1,-0) failed\n");
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printf ("expected (-0,+0)\n");
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printf ("got ");
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mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
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printf ("\n");
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exit (1);
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}
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mpc_set_ui_ui (a, 1, 0, MPC_RNDNN);
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mpc_ui_div (b, 1, a, MPC_RNDNN);
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if (mpc_cmp_si_si (b, 1, 0) != 0)
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{
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printf ("1/(1,0) failed\n");
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printf ("expected (1,0)\n");
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printf ("got ");
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mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
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printf ("\n");
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exit (1);
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}
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/* problem reported by Timo Hartmann with mpc-0.7, 21 Oct 2009 */
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mpc_set_ui_ui (a, 4, 0, MPC_RNDNN);
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mpc_ui_div (b, 1, a, MPC_RNDNN);
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if (mpfr_cmp_ui_2exp (mpc_realref(b), 1, -2) != 0 ||
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mpfr_cmp_ui (mpc_imagref(b), 0) != 0 || mpfr_signbit (mpc_imagref(b)) != 0)
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{
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printf ("1/(4,0) failed\n");
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printf ("expected (1/4,0)\n");
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printf ("got ");
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mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
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printf ("\n");
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exit (1);
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}
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mpc_clear (a);
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mpc_clear (b);
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}
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#define MPC_FUNCTION_CALL \
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P[0].mpc_inex = mpc_ui_div (P[1].mpc, P[2].ui, P[3].mpc, P[4].mpc_rnd)
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#define MPC_FUNCTION_CALL_REUSE_OP2 \
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P[0].mpc_inex = mpc_ui_div (P[1].mpc, P[2].ui, P[1].mpc, P[4].mpc_rnd)
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#include "tgeneric.tpl"
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int
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main (void)
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{
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test_start ();
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test_special ();
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tgeneric_template ("ui_div.dsc", 2, 1024, 7, 4096);
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test_end ();
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return 0;
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}
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