65 lines
2.0 KiB
C
65 lines
2.0 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 <stdio.h>
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#include <string.h>
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#include "flint.h"
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#include "nmod_poly.h"
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int nmod_poly_set_str(nmod_poly_t poly, const char * s)
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{
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const char * whitespace = " \t\n\r";
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slong i, length;
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mp_limb_t n;
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if (flint_sscanf(s, "%wd %wu", &length, &n) != 2)
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return 0;
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/* jump past length (n will be skipped in first loop iter) */
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s += strcspn(s, whitespace);
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s += strspn(s, whitespace);
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nmod_poly_fit_length(poly, length);
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poly->length = length;
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for (i = 0; i < length; i++)
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{
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s += strcspn(s, whitespace); /* jump to next whitespace */
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s += strspn(s, whitespace); /* skip whitespace */
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if (!flint_sscanf(s, "%wu", &poly->coeffs[i]))
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{
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poly->length = i;
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return 0;
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}
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}
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_nmod_poly_normalise(poly);
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return 1;
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}
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