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https://github.com/vale981/arb
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49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/*=============================================================================
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This file is part of ARB.
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ARB is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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ARB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ARB; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2016 Pascal Molin
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******************************************************************************/
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#include "dlog.h"
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ulong
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dlog_modpe_init(dlog_modpe_t t, ulong a, ulong p, ulong e, ulong pe, ulong num)
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{
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ulong a1;
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t->p = p;
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t->e = e;
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t->pe1 = pe / p;
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nmod_init(&t->pe, pe);
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t->inva = nmod_inv(a, t->pe);
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t->modp = flint_malloc(sizeof(dlog_precomp_struct));
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dlog_precomp_n_init(t->modp, a, p, p - 1, num);
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a1 = nmod_pow_ui(a, p - 1, t->pe);
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if (1 || e <= 2)
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dlog_1modpe_rec_init(t->modpe.rec, a1, p, e, t->pe);
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else
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dlog_1modpe_padic_init(t->modpe.padic, a1, p, e);
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return t->modp->cost + e;
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}
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