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72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/* tpow -- test file for mpc_pow.
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Copyright (C) 2009, 2011 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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reuse_bug (void)
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{
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/* bug found by the automatic builds on
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http://hydra.nixos.org/build/1469029/log/raw */
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mpc_t x, y, z;
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mp_prec_t prec = 2;
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for (prec = 2; prec <= 20; prec ++)
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{
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mpc_init2 (x, prec);
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mpc_init2 (y, prec);
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mpc_init2 (z, prec);
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mpfr_set_ui (mpc_realref (x), 0ul, GMP_RNDN);
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mpfr_set_ui_2exp (mpc_imagref (x), 3ul, -2, GMP_RNDN);
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mpc_set_ui (y, 8ul, MPC_RNDNN);
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mpc_pow (z, x, y, MPC_RNDNN);
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mpc_pow (y, x, y, MPC_RNDNN);
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if (mpfr_signbit (mpc_imagref (y)) != mpfr_signbit (mpc_imagref (z)))
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{
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printf ("Error: regression, reuse_bug reproduced\n");
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exit (1);
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}
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mpc_clear (x);
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mpc_clear (y);
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mpc_clear (z);
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}
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}
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int
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main (void)
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{
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DECL_FUNC (C_CC, f, mpc_pow);
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test_start ();
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reuse_bug ();
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data_check (f, "pow.dat");
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tgeneric (f, 2, 1024, 7, 10);
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test_end ();
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return 0;
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}
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