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/*
Copyright (C) 2018 Daniel Schultz
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "fmpq_mpoly.h"
/* return 1 if quotient is exact */
int fmpq_mpoly_divides(fmpq_mpoly_t Q, const fmpq_mpoly_t A,
const fmpq_mpoly_t B, const fmpq_mpoly_ctx_t ctx)
{
int res;
if (fmpq_mpoly_is_zero(B, ctx))
{
flint_throw(FLINT_DIVZERO, "Divide by zero in fmpq_mpoly_divides");
}
if (fmpq_mpoly_is_zero(A, ctx))
{
fmpq_mpoly_zero(Q, ctx);
return 1;
}
res = fmpz_mpoly_divides(Q->zpoly, A->zpoly, B->zpoly, ctx->zctx);
if (!res)
{
fmpq_mpoly_zero(Q, ctx);
return 0;
}
fmpq_div(Q->content, A->content, B->content);
return 1;
}