57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT 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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FLINT 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 FLINT; 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) 2007, David Howden.
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Copyright (C) 2010 William Hart
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******************************************************************************/
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#include <gmp.h>
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#include <stdlib.h>
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#include "flint.h"
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#include "ulong_extras.h"
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#include "nmod_poly.h"
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void
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nmod_poly_realloc(nmod_poly_t poly, slong alloc)
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{
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if (alloc == 0)
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{
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nmod_poly_clear(poly);
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poly->length = 0;
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poly->alloc = 0;
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poly->coeffs = NULL;
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return;
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}
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poly->coeffs = (mp_ptr) flint_realloc(poly->coeffs, alloc * sizeof(mp_limb_t));
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poly->alloc = alloc;
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/* truncate poly if necessary */
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if (poly->length > alloc)
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{
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poly->length = alloc;
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_nmod_poly_normalise(poly);
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}
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}
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