44 lines
1.5 KiB
C
44 lines
1.5 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) 2011, 2012 Sebastian Pancratz
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Copyright (C) 2012 Andres Goens
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Copyright (C) 2013 Mike Hansen
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******************************************************************************/
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#include "fq.h"
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void
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fq_sub(fq_t rop, const fq_t op1, const fq_t op2, const fq_ctx_t ctx)
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{
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slong max = FLINT_MAX(op1->length, op2->length);
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fmpz_poly_fit_length(rop, max);
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_fmpz_mod_poly_sub(rop->coeffs,
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op1->coeffs, op1->length, op2->coeffs, op2->length,
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fq_ctx_prime(ctx));
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_fmpz_poly_set_length(rop, max);
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_fmpz_poly_normalise(rop);
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}
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