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29 lines
789 B
C
29 lines
789 B
C
/*
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Copyright (C) 2016 Pascal Molin
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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 it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "acb_dirichlet.h"
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int
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acb_dirichlet_conrey_next(acb_dirichlet_conrey_t x, const acb_dirichlet_group_t G)
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{
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/* update index */
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int k;
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for (k = G->num - 1; k >= 0; k--)
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{
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x->n = nmod_mul(x->n, G->generators[k], G->mod);
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x->log[k] += 1;
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if (x->log[k] < G->P[k].phi)
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break;
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x->log[k] = 0;
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}
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/* return last index modified */
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return k;
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}
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