/*
    Copyright (C) 2023 Fredrik Johansson

    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/>.
*/

#ifndef GR_POLY_H
#define GR_POLY_H

#ifdef GR_POLY_INLINES_C
#define GR_POLY_INLINE
#else
#define GR_POLY_INLINE static inline
#endif

#include "fmpq_types.h"
#include "gr.h"

#ifdef __cplusplus
extern "C" {
#endif

void gr_poly_init(gr_poly_t poly, gr_ctx_t ctx);
void gr_poly_init2(gr_poly_t poly, slong len, gr_ctx_t ctx);
void gr_poly_clear(gr_poly_t poly, gr_ctx_t ctx);

GR_POLY_INLINE gr_ptr
gr_poly_coeff_ptr(gr_poly_t poly, slong i, gr_ctx_t ctx)
{
    return GR_ENTRY(poly->coeffs, i, ctx->sizeof_elem);
}
/* deprecated old function name */
GR_POLY_INLINE gr_ptr
gr_poly_entry_ptr(gr_poly_t poly, slong i, gr_ctx_t ctx)
{
    return GR_ENTRY(poly->coeffs, i, ctx->sizeof_elem);
}

GR_POLY_INLINE gr_srcptr
gr_poly_coeff_srcptr(const gr_poly_t poly, slong i, gr_ctx_t ctx)
{
    return GR_ENTRY(poly->coeffs, i, ctx->sizeof_elem);
}
/* deprecated old function name */
GR_POLY_INLINE gr_srcptr
gr_poly_entry_srcptr(const gr_poly_t poly, slong i, gr_ctx_t ctx)
{
    return GR_ENTRY(poly->coeffs, i, ctx->sizeof_elem);
}

GR_POLY_INLINE slong gr_poly_length(const gr_poly_t poly, gr_ctx_t FLINT_UNUSED(ctx))
{
    return poly->length;
}

GR_POLY_INLINE void
gr_poly_swap(gr_poly_t poly1, gr_poly_t poly2, gr_ctx_t FLINT_UNUSED(ctx))
{
    FLINT_SWAP(gr_poly_struct, *poly1, *poly2);
}

void gr_poly_fit_length(gr_poly_t poly, slong len, gr_ctx_t ctx);
void _gr_poly_set_length(gr_poly_t poly, slong len, gr_ctx_t ctx);
void _gr_poly_normalise(gr_poly_t poly, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_set(gr_poly_t res, const gr_poly_t src, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_reverse(gr_ptr res, gr_srcptr poly, slong len, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_reverse(gr_poly_t res, const gr_poly_t poly, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_truncate(gr_poly_t poly, const gr_poly_t src, slong newlen, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int
gr_poly_zero(gr_poly_t poly, gr_ctx_t ctx)
{
    _gr_poly_set_length(poly, 0, ctx);
    return GR_SUCCESS;
}

WARN_UNUSED_RESULT int gr_poly_one(gr_poly_t poly, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_neg_one(gr_poly_t poly, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_gen(gr_poly_t poly, gr_ctx_t ctx);

int _gr_poly_write(gr_stream_t out, gr_srcptr poly, slong len, const char * x, gr_ctx_t ctx);
int gr_poly_write(gr_stream_t out, const gr_poly_t poly, const char * x, gr_ctx_t ctx);
int _gr_poly_get_str(char ** res, gr_srcptr f, slong len, const char * x, gr_ctx_t ctx);
int gr_poly_get_str(char ** res, const gr_poly_t poly, const char * x, gr_ctx_t ctx);
int _gr_poly_set_str(gr_ptr res, const char * s, const char * x, slong len, gr_ctx_t ctx);
int gr_poly_set_str(gr_poly_t res, const char * s, const char * x, gr_ctx_t ctx);
int gr_poly_print(const gr_poly_t poly, gr_ctx_t ctx);

int gr_poly_randtest(gr_poly_t poly, flint_rand_t state, slong len, gr_ctx_t ctx);

truth_t _gr_poly_equal(gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
truth_t gr_poly_equal(const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

truth_t gr_poly_is_zero(const gr_poly_t poly, gr_ctx_t ctx);
truth_t gr_poly_is_one(const gr_poly_t poly, gr_ctx_t ctx);
truth_t gr_poly_is_gen(const gr_poly_t poly, gr_ctx_t ctx);
truth_t gr_poly_is_scalar(const gr_poly_t poly, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_set_scalar(gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_si(gr_poly_t poly, slong x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_ui(gr_poly_t poly, ulong x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_fmpz(gr_poly_t poly, const fmpz_t x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_fmpq(gr_poly_t poly, const fmpq_t x, gr_ctx_t ctx);

/* todo: test */
WARN_UNUSED_RESULT int gr_poly_set_fmpz_poly(gr_poly_t res, const fmpz_poly_t src, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_fmpq_poly(gr_poly_t res, const fmpq_poly_t src, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_gr_poly_other(gr_poly_t res, const gr_poly_t x, gr_ctx_t x_ctx, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_set_coeff_scalar(gr_poly_t poly, slong n, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_coeff_si(gr_poly_t poly, slong n, slong x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_coeff_ui(gr_poly_t poly, slong n, ulong x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_coeff_fmpz(gr_poly_t poly, slong n, const fmpz_t x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_set_coeff_fmpq(gr_poly_t poly, slong n, const fmpq_t x, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_get_coeff_scalar(gr_ptr res, const gr_poly_t poly, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_neg(gr_poly_t res, const gr_poly_t src, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_add(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_add(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_sub(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sub(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mul(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_mullow(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong len, gr_ctx_t ctx)
{
    return GR_POLY_BINARY_TRUNC_OP(ctx, POLY_MULLOW)(res, poly1, len1, poly2, len2, len, ctx);
}

WARN_UNUSED_RESULT int _gr_poly_mullow_generic(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mullow(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mulmid_complex_reorder(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong nlo, slong nhi, int karatsuba, gr_ctx_t ctx, gr_ctx_t real_ctx);
WARN_UNUSED_RESULT int gr_poly_mulmid_complex_reorder(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong nlo, slong nhi, int karatsuba, gr_ctx_t ctx, gr_ctx_t real_ctx);
WARN_UNUSED_RESULT int _gr_poly_mullow_complex_reorder(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, int karatsuba, gr_ctx_t ctx, gr_ctx_t real_ctx);
WARN_UNUSED_RESULT int gr_poly_mullow_complex_reorder(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, int karatsuba, gr_ctx_t ctx, gr_ctx_t real_ctx);

WARN_UNUSED_RESULT int _gr_poly_mullow_bivariate_KS(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mullow_bivariate_KS(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mullow_toom_serial(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong trunc, slong num_points, slong splitting_degree, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mullow_toom_serial(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, slong num_points, slong splitting_degree, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_mulmid(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong nlo, slong nhi, gr_ctx_t ctx)
{
    return GR_POLY_BINARY_TRUNC2_OP(ctx, POLY_MULMID)(res, poly1, len1, poly2, len2, nlo, nhi, ctx);
}

WARN_UNUSED_RESULT int _gr_poly_mulmid_generic(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong nlo, slong nhi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mulmid(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong nlo, slong nhi, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mulmid_classical(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong nlo, slong nhi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mulmid_classical(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong nlo, slong nhi, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mulmid_bivariate_KS(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong nlo, slong nhi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mulmid_bivariate_KS(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong nlo, slong nhi, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int
_gr_poly_mullow_classical(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx)
{
    return _gr_poly_mulmid_classical(res, poly1, len1, poly2, len2, 0, n, ctx);
}

WARN_UNUSED_RESULT int gr_poly_mullow_classical(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mul_karatsuba(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_karatsuba(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_mul_toom33(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_toom33(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_add_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_add_ui(gr_poly_t res, const gr_poly_t poly, ulong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_add_si(gr_poly_t res, const gr_poly_t poly, slong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_add_fmpz(gr_poly_t res, const gr_poly_t poly, const fmpz_t c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_add_fmpq(gr_poly_t res, const gr_poly_t poly, const fmpq_t c, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_sub_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sub_ui(gr_poly_t res, const gr_poly_t poly, ulong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sub_si(gr_poly_t res, const gr_poly_t poly, slong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sub_fmpz(gr_poly_t res, const gr_poly_t poly, const fmpz_t c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sub_fmpq(gr_poly_t res, const gr_poly_t poly, const fmpq_t c, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_mul_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_scalar_mul(gr_poly_t res, gr_srcptr c, const gr_poly_t poly, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_ui(gr_poly_t res, const gr_poly_t poly, ulong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_si(gr_poly_t res, const gr_poly_t poly, slong c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_fmpz(gr_poly_t res, const gr_poly_t poly, const fmpz_t c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mul_fmpq(gr_poly_t res, const gr_poly_t poly, const fmpq_t c, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_addmul_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_submul_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);

/* powering */

WARN_UNUSED_RESULT int _gr_poly_pow_series_ui_binexp(gr_ptr res, gr_srcptr f, slong flen, ulong exp, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_pow_series_ui_binexp(gr_poly_t res, const gr_poly_t poly, ulong exp, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_pow_series_ui(gr_ptr res, gr_srcptr f, slong flen, ulong exp, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_pow_series_ui(gr_poly_t res, const gr_poly_t poly, ulong exp, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_pow_ui_binexp(gr_ptr res, gr_srcptr f, slong flen, ulong exp, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_pow_ui_binexp(gr_poly_t res, const gr_poly_t poly, ulong exp, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_pow_ui(gr_ptr res, gr_srcptr f, slong flen, ulong exp, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_pow_ui(gr_poly_t res, const gr_poly_t poly, ulong exp, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_pow_fmpz(gr_poly_t res, const gr_poly_t poly, const fmpz_t exp, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_pow_series_fmpq_recurrence(gr_ptr h, gr_srcptr f, slong flen, const fmpq_t exp, slong len, int precomp, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_pow_series_fmpq_recurrence(gr_poly_t res, const gr_poly_t poly, const fmpq_t exp, slong len, gr_ctx_t ctx);

/* shifting */

WARN_UNUSED_RESULT int _gr_poly_shift_left(gr_ptr res, gr_srcptr poly, slong len, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_shift_left(gr_poly_t res, const gr_poly_t poly, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_shift_right(gr_ptr res, gr_srcptr poly, slong len, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_shift_right(gr_poly_t res, const gr_poly_t poly, slong n, gr_ctx_t ctx);

/* division */

WARN_UNUSED_RESULT int gr_poly_div_scalar(gr_poly_t res, const gr_poly_t poly, gr_srcptr c, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_inv(gr_poly_t res, const gr_poly_t poly, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_divrem_basecase_preinv1(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_srcptr invB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divrem_basecase_noinv(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divrem_basecase(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divrem_basecase(gr_poly_t Q, gr_poly_t R, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_divrem_divconquer_preinv1(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_srcptr invB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divrem_divconquer_noinv(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divrem_divconquer(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divrem_divconquer(gr_poly_t Q, gr_poly_t R, const gr_poly_t A, const gr_poly_t B, slong cutoff, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_divrem_newton(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divrem_newton(gr_poly_t Q, gr_poly_t R, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_divrem(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx) { return GR_POLY_BINARY_BINARY_OP(ctx, POLY_DIVREM)(Q, R, A, lenA, B, lenB, ctx); }
WARN_UNUSED_RESULT int _gr_poly_divrem_generic(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divrem(gr_poly_t Q, gr_poly_t R, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_div_divconquer_preinv1(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_srcptr invB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_divconquer_noinv(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_divconquer(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_divconquer(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong cutoff, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_div_basecase_preinv1(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_srcptr invB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_basecase_noinv(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_basecase(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_basecase(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_div_newton(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_newton(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_div(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx) { return GR_POLY_BINARY_OP(ctx, POLY_DIV)(Q, A, lenA, B, lenB, ctx); }
WARN_UNUSED_RESULT int _gr_poly_div_generic(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_rem(gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_rem(gr_poly_t R, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_div_newton_n_preinv(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr FLINT_UNUSED(B), slong lenB, gr_srcptr Binv, slong lenBinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_newton_n_preinv(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, const gr_poly_t Binv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divrem_newton_n_preinv(gr_ptr Q, gr_ptr R, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_srcptr Binv, slong lenBinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divrem_newton_n_preinv(gr_poly_t Q, gr_poly_t R, const gr_poly_t A, const gr_poly_t B, const gr_poly_t Binv, gr_ctx_t ctx);


/* todo: div with fast divisibility checking; rem; divexact */

WARN_UNUSED_RESULT int _gr_poly_inv_series_newton(gr_ptr Qinv, gr_srcptr Q, slong Qlen, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_inv_series_newton(gr_poly_t Qinv, const gr_poly_t Q, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_inv_series_basecase_preinv1(gr_ptr res, gr_srcptr A, slong Alen, gr_srcptr Ainv, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_inv_series_basecase_generic(gr_ptr Qinv, gr_srcptr Q, slong Qlen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_inv_series_basecase(gr_poly_t Qinv, const gr_poly_t Q, slong len, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_inv_series_basecase(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx) { return GR_POLY_UNARY_TRUNC_OP(ctx, POLY_INV_SERIES_BASECASE)(res, f, flen, len, ctx); }
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_inv_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx) { return GR_POLY_UNARY_TRUNC_OP(ctx, POLY_INV_SERIES)(res, f, flen, len, ctx); }

WARN_UNUSED_RESULT int _gr_poly_inv_series_generic(gr_ptr Qinv, gr_srcptr Q, slong Qlen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_inv_series(gr_poly_t Qinv, const gr_poly_t Q, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_div_series_newton(gr_ptr res, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_series_newton(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_series_divconquer(gr_ptr res, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_series_divconquer(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_series_basecase_generic(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_series_basecase(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_series_basecase_preinv1(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, gr_srcptr Binv, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_series_basecase_noinv(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_div_series_invmul(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_series_invmul(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_div_series_basecase(gr_ptr res, gr_srcptr f, slong flen, gr_srcptr g, slong glen, slong len, gr_ctx_t ctx) { return GR_POLY_BINARY_TRUNC_OP(ctx, POLY_DIV_SERIES_BASECASE)(res, f, flen, g, glen, len, ctx); }
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_div_series(gr_ptr res, gr_srcptr f, slong flen, gr_srcptr g, slong glen, slong len, gr_ctx_t ctx) { return GR_POLY_BINARY_TRUNC_OP(ctx, POLY_DIV_SERIES)(res, f, flen, g, glen, len, ctx); }

WARN_UNUSED_RESULT int _gr_poly_div_series_generic(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_div_series(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_divexact_basecase_bidirectional(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divexact_basecase_bidirectional(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divexact_bidirectional(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divexact_bidirectional(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divexact_basecase_noinv(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divexact_basecase(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divexact_basecase(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_divexact(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx) { return GR_POLY_BINARY_OP(ctx, POLY_DIVEXACT)(Q, A, lenA, B, lenB, ctx); }
WARN_UNUSED_RESULT int _gr_poly_divexact_generic(gr_ptr Q, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divexact(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);


WARN_UNUSED_RESULT int _gr_poly_divexact_series_basecase_noinv(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_divexact_series_basecase(gr_ptr Q, gr_srcptr A, slong Alen, gr_srcptr B, slong Blen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_divexact_series_basecase(gr_poly_t Q, const gr_poly_t A, const gr_poly_t B, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_sqrt_series_newton(gr_ptr res, gr_srcptr f, slong flen, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sqrt_series_newton(gr_poly_t res, const gr_poly_t f, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_sqrt_series_basecase(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sqrt_series_basecase(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_sqrt_series_miller(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sqrt_series_miller(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_sqrt_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx) { return GR_POLY_UNARY_TRUNC_OP(ctx, POLY_SQRT_SERIES)(res, f, flen, len, ctx); }
WARN_UNUSED_RESULT int _gr_poly_sqrt_series_generic(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sqrt_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_rsqrt_series_newton(gr_ptr res, gr_srcptr f, slong flen, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_rsqrt_series_newton(gr_poly_t res, const gr_poly_t f, slong len, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_rsqrt_series_basecase(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_rsqrt_series_basecase(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_rsqrt_series_miller(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_rsqrt_series_miller(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_rsqrt_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx) { return GR_POLY_UNARY_TRUNC_OP(ctx, POLY_RSQRT_SERIES)(res, f, flen, len, ctx); }
WARN_UNUSED_RESULT int _gr_poly_rsqrt_series_generic(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_rsqrt_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_rectangular(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_rectangular(gr_ptr res, const gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_modular(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_modular(gr_ptr res, const gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_horner(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_horner(gr_ptr res, const gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate(gr_ptr res, const gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_other_horner(gr_ptr res, gr_srcptr f, slong len, const gr_srcptr x, gr_ctx_t x_ctx, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_other_horner(gr_ptr res, const gr_poly_t f, gr_srcptr a, gr_ctx_t a_ctx, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_evaluate_other_rectangular(gr_ptr res, gr_srcptr f, slong len, const gr_srcptr x, gr_ctx_t x_ctx, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_other_rectangular(gr_ptr res, const gr_poly_t f, gr_srcptr a, gr_ctx_t a_ctx, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_evaluate_other(gr_ptr res, gr_srcptr f, slong len, const gr_srcptr x, gr_ctx_t x_ctx, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_other(gr_ptr res, const gr_poly_t f, gr_srcptr a, gr_ctx_t a_ctx, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_taylor_shift_horner(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_taylor_shift_horner(gr_poly_t res, const gr_poly_t f, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_taylor_shift_divconquer(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_taylor_shift_divconquer(gr_poly_t res, const gr_poly_t f, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_taylor_shift_convolution(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_taylor_shift_convolution(gr_poly_t res, const gr_poly_t f, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_taylor_shift_generic(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr c, gr_ctx_t ctx);
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_taylor_shift(gr_ptr res, gr_srcptr f, slong len, gr_srcptr c, gr_ctx_t ctx) { return GR_VEC_SCALAR_OP(ctx, POLY_TAYLOR_SHIFT)(res, f, len, c, ctx); }
WARN_UNUSED_RESULT int _gr_poly_taylor_shift(gr_ptr res, gr_srcptr poly, slong len, gr_srcptr c, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_taylor_shift(gr_poly_t res, const gr_poly_t f, gr_srcptr c, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_compose_horner(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_horner(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_divconquer(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_divconquer(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_compose_series_horner(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_series_horner(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_series_brent_kung(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_series_brent_kung(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_series_divconquer(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_series_divconquer(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_series(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_series(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_revert_series_lagrange(gr_ptr res, gr_srcptr f, slong flen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_revert_series_lagrange(gr_poly_t res, const gr_poly_t f, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_revert_series_lagrange_fast(gr_ptr res, gr_srcptr f, slong flen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_revert_series_lagrange_fast(gr_poly_t res, const gr_poly_t f, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_revert_series_newton(gr_ptr res, gr_srcptr f, slong flen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_revert_series_newton(gr_poly_t res, const gr_poly_t f, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_revert_series(gr_ptr res, gr_srcptr f, slong flen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_revert_series(gr_poly_t res, const gr_poly_t f, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_derivative(gr_ptr res, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_derivative(gr_poly_t res, const gr_poly_t poly, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_nth_derivative(gr_ptr res, gr_srcptr poly, ulong n, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_nth_derivative(gr_poly_t res, const gr_poly_t poly, ulong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_integral(gr_ptr res, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_integral(gr_poly_t res, const gr_poly_t poly, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_make_monic(gr_ptr res, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_make_monic(gr_poly_t res, const gr_poly_t src, gr_ctx_t ctx);

WARN_UNUSED_RESULT truth_t _gr_poly_is_monic(gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT truth_t gr_poly_is_monic(const gr_poly_t res, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_canonical_associate(gr_ptr res, gr_ptr u, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_canonical_associate(gr_poly_t res, gr_poly_t u, const gr_poly_t poly, gr_ctx_t ctx);

/* GCD, resultant */

WARN_UNUSED_RESULT int _gr_poly_hgcd(gr_ptr r, slong * sgn, gr_ptr * M, slong * lenM, gr_ptr A, slong * lenA, gr_ptr B, slong * lenB, gr_srcptr a, slong lena, gr_srcptr b, slong lenb, slong cutoff, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_gcd_hgcd(gr_ptr G, slong * _lenG, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong inner_cutoff, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_gcd_hgcd(gr_poly_t G, const gr_poly_t A, const gr_poly_t B, slong inner_cutoff, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_gcd_euclidean(gr_ptr G, slong * lenG, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_gcd_euclidean(gr_poly_t G, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_gcd_subresultant(gr_ptr G, slong * lenG, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_gcd_subresultant(gr_poly_t G, const gr_poly_t poly1, const gr_poly_t poly2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_gcd_generic(gr_ptr G, slong * lenG, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_gcd(gr_ptr G, slong * lenG, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx) { return GR_POLY_GCD_OP(ctx, POLY_GCD)(G, lenG, A, lenA, B, lenB, ctx); }
WARN_UNUSED_RESULT int gr_poly_gcd(gr_poly_t G, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_gcd_wrapper(gr_method_poly_gcd_op gcd_impl, int canonicalise_unit, gr_poly_t G, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_xgcd_euclidean(slong * lenG, gr_ptr G, gr_ptr S, gr_ptr T, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_xgcd_euclidean(gr_poly_t G, gr_poly_t S, gr_poly_t T, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_xgcd_hgcd(slong * Glen, gr_ptr G, gr_ptr S, gr_ptr T, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong hgcd_cutoff, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_xgcd_hgcd(gr_poly_t G, gr_poly_t S, gr_poly_t T, const gr_poly_t A, const gr_poly_t B, slong hgcd_cutoff, slong cutoff, gr_ctx_t ctx);

GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_xgcd(slong * Glen, gr_ptr G, gr_ptr S, gr_ptr T, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx) { return GR_POLY_XGCD_OP(ctx, POLY_XGCD)(Glen, G, S, T, A, lenA, B, lenB, ctx); }
WARN_UNUSED_RESULT int _gr_poly_xgcd_generic(slong * Glen, gr_ptr G, gr_ptr S, gr_ptr T, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_xgcd_wrapper(gr_method_poly_xgcd_op _xgcd_op, gr_poly_t G, gr_poly_t S, gr_poly_t T, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_xgcd(gr_poly_t G, gr_poly_t S, gr_poly_t T, const gr_poly_t A, const gr_poly_t B, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_resultant_euclidean(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_resultant_euclidean(gr_ptr r, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_resultant_hgcd(gr_ptr res, gr_srcptr A, slong lenA, gr_srcptr B, slong lenB, slong inner_cutoff, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_resultant_hgcd(gr_ptr r, const gr_poly_t f, const gr_poly_t g, slong inner_cutoff, slong cutoff, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_resultant_sylvester(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_resultant_sylvester(gr_ptr r, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_resultant_small(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_resultant_small(gr_ptr r, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_resultant(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_resultant(gr_ptr r, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);

/* Newton basis */

WARN_UNUSED_RESULT int _gr_poly_newton_basis_evaluate(gr_ptr res, gr_srcptr basis, gr_srcptr poly, slong len, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_newton_basis_evaluate(gr_ptr res, const gr_vec_t basis, const gr_poly_t poly, gr_srcptr x, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_newton_basis_interpolate_exact(gr_ptr res, gr_srcptr basis, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_newton_basis_interpolate_exact(gr_poly_t res, const gr_vec_t basis, const gr_vec_t ys, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_newton_basis_interpolate(gr_ptr res, gr_srcptr basis, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_newton_basis_interpolate(gr_poly_t res, const gr_vec_t basis, const gr_vec_t ys, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_newton_basis_to_monomial(gr_ptr res, gr_srcptr basis, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_newton_basis_to_monomial(gr_poly_t res, const gr_vec_t basis, const gr_poly_t poly, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_newton_basis_from_monomial(gr_ptr res, gr_srcptr basis, gr_srcptr poly, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_newton_basis_from_monomial(gr_poly_t res, const gr_vec_t basis, const gr_poly_t poly, gr_ctx_t ctx);

/* Multipoint evaluation/interpolation */

gr_ptr * _gr_poly_tree_alloc(slong len, gr_ctx_t ctx);
void _gr_poly_tree_free(gr_ptr * tree, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_tree_build(gr_ptr * tree, gr_srcptr roots, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_product_roots(gr_ptr poly, gr_srcptr xs, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_product_roots(gr_poly_t poly, const gr_vec_t xs, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_vec_fast_precomp(gr_ptr vs, gr_srcptr poly, slong plen, const gr_ptr * tree, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_vec_fast(gr_ptr ys, gr_srcptr poly, slong plen, gr_srcptr xs, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_vec_fast(gr_vec_t ys, const gr_poly_t poly, const gr_vec_t xs, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_evaluate_vec_iter(gr_ptr ys, gr_srcptr poly, slong plen, gr_srcptr xs, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_evaluate_vec_iter(gr_vec_t ys, const gr_poly_t poly, const gr_vec_t xs, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_interpolate_exact_newton(gr_ptr res, gr_srcptr xs, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_interpolate_exact_newton(gr_poly_t poly, const gr_vec_t xs, const gr_vec_t ys, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_interpolate_newton(gr_ptr res, gr_srcptr xs, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_interpolate_newton(gr_poly_t poly, const gr_vec_t xs, const gr_vec_t ys, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_interpolation_weights(gr_ptr w, const gr_ptr * tree, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_interpolate_fast_precomp(gr_ptr poly, gr_srcptr ys, const gr_ptr * tree, gr_srcptr weights, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_interpolate_fast(gr_ptr res, gr_srcptr xs, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_interpolate_fast(gr_poly_t poly, const gr_vec_t xs, const gr_vec_t ys, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_interpolate_exact(gr_ptr res, gr_srcptr xs, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_interpolate_exact(gr_poly_t poly, const gr_vec_t xs, const gr_vec_t ys, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_interpolate(gr_ptr res, gr_srcptr xs, gr_srcptr ys, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_interpolate(gr_poly_t poly, const gr_vec_t xs, const gr_vec_t ys, gr_ctx_t ctx);

/* Squarefree factorization */

WARN_UNUSED_RESULT int gr_poly_factor_squarefree(gr_ptr c, gr_vec_t fac, gr_vec_t exp, const gr_poly_t F, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_squarefree_part(gr_poly_t res, const gr_poly_t poly, gr_ctx_t ctx);

/* Shift factorization */

WARN_UNUSED_RESULT int gr_poly_leading_taylor_shift(gr_ptr shift, const gr_poly_t p, const gr_poly_t q, gr_ctx_t ctx);

truth_t gr_poly_shift_equivalent(fmpz_t shift, const gr_poly_t p, const gr_poly_t q, gr_ctx_t ctx);

WARN_UNUSED_RESULT int gr_poly_dispersion_resultant(fmpz_t disp, gr_vec_t disp_set, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_dispersion_from_factors(fmpz_t disp, gr_vec_t disp_set, const gr_vec_t ffac, const gr_vec_t gfac, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_dispersion_factor(fmpz_t disp, gr_vec_t disp_set, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_dispersion(fmpz_t disp, gr_vec_t disp_set, const gr_poly_t f, const gr_poly_t g, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_shiftless_decomposition_from_factors(gr_vec_t slfac, gr_vec_t slshifts, gr_vec_t slmult, const gr_vec_t fac, const gr_vec_t mult, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_shiftless_decomposition_from_factors(gr_vec_t slfac, gr_vec_t slshifts, gr_vec_t slmult, const gr_vec_t fac, const gr_vec_t mult, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_shiftless_decomposition_factor(gr_ptr c, gr_vec_t slfac, gr_vec_t slshifts, gr_vec_t slmult, const gr_poly_t pol, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_shiftless_decomposition(gr_ptr c, gr_vec_t slfac, gr_vec_t slshifts, gr_vec_t slmult, const gr_poly_t pol, gr_ctx_t ctx);

/* Roots */

WARN_UNUSED_RESULT int _gr_poly_refine_roots_aberth(gr_ptr w, gr_srcptr f, gr_srcptr f_prime, slong deg, gr_srcptr z, int progressive, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_refine_roots_wdk(gr_ptr w, gr_srcptr f, slong deg, gr_srcptr z, int progressive, gr_ctx_t ctx);

typedef int ((*gr_poly_roots_op)(gr_vec_t, gr_vec_t, const gr_poly_t, int, gr_ctx_ptr));
#define GR_POLY_ROOTS_OP(ctx, NAME) (((gr_poly_roots_op *) ctx->methods)[GR_METHOD_ ## NAME])
GR_POLY_INLINE WARN_UNUSED_RESULT int gr_poly_roots(gr_vec_t roots, gr_vec_t mult, const gr_poly_t poly, int flags, gr_ctx_t ctx) { return GR_POLY_ROOTS_OP(ctx, POLY_ROOTS)(roots, mult, poly, flags, ctx); }

typedef int ((*gr_poly_roots_op_other)(gr_vec_t, gr_vec_t, const gr_poly_t, gr_ctx_ptr, int, gr_ctx_ptr));
#define GR_POLY_ROOTS_OP_OTHER(ctx, NAME) (((gr_poly_roots_op_other *) ctx->methods)[GR_METHOD_ ## NAME])
GR_POLY_INLINE WARN_UNUSED_RESULT int gr_poly_roots_other(gr_vec_t roots, gr_vec_t mult, const gr_poly_t poly, gr_ctx_t poly_ctx, int flags, gr_ctx_t ctx) { return GR_POLY_ROOTS_OP_OTHER(ctx, POLY_ROOTS_OTHER)(roots, mult, poly, poly_ctx, flags, ctx); }

WARN_UNUSED_RESULT int _gr_poly_asin_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_asin_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_asinh_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_asinh_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_acos_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_acos_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_acosh_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_acosh_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_atan_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_atan_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_atanh_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_atanh_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_log_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_log_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_log1p_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_log1p_series(gr_poly_t res, const gr_poly_t f, slong len, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_exp_series_basecase(gr_ptr f, gr_srcptr h, slong hlen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_exp_series_basecase(gr_poly_t f, const gr_poly_t h, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_exp_series_basecase_mul(gr_ptr f, gr_srcptr h, slong hlen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_exp_series_basecase_mul(gr_poly_t f, const gr_poly_t h, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_exp_series_newton(gr_ptr f, gr_ptr g, gr_srcptr h, slong hlen, slong n, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_exp_series_newton(gr_poly_t f, const gr_poly_t h, slong n, slong cutoff, gr_ctx_t ctx);
GR_POLY_INLINE WARN_UNUSED_RESULT int _gr_poly_exp_series(gr_ptr res, gr_srcptr f, slong flen, slong len, gr_ctx_t ctx) { return GR_POLY_UNARY_TRUNC_OP(ctx, POLY_EXP_SERIES)(res, f, flen, len, ctx); }
WARN_UNUSED_RESULT int _gr_poly_exp_series_generic(gr_ptr f, gr_srcptr h, slong hlen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_exp_series(gr_poly_t f, const gr_poly_t h, slong n, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_sin_cos_series_basecase(gr_ptr s, gr_ptr c, gr_srcptr h, slong hlen, slong n, int times_pi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sin_cos_series_basecase(gr_poly_t s, gr_poly_t c, const gr_poly_t h, slong n, int times_pi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_sin_cos_series_tangent(gr_ptr s, gr_ptr c, gr_srcptr h, slong hlen, slong n, int times_pi, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_sin_cos_series_tangent(gr_poly_t s, gr_poly_t c, const gr_poly_t h, slong n, int times_pi, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_tan_series_basecase(gr_ptr f, gr_srcptr h, slong hlen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_tan_series_basecase(gr_poly_t f, const gr_poly_t h, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_tan_series_newton(gr_ptr f, gr_srcptr h, slong hlen, slong n, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_tan_series_newton(gr_poly_t f, const gr_poly_t h, slong n, slong cutoff, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_tan_series(gr_ptr f, gr_srcptr h, slong hlen, slong n, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_tan_series(gr_poly_t f, const gr_poly_t h, slong n, gr_ctx_t ctx);

/* Modular arithmetic and composition */

WARN_UNUSED_RESULT int _gr_poly_mulmod(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_srcptr f, slong lenf, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mulmod(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t f, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_mulmod_preinv(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, slong len2, gr_srcptr f, slong lenf, gr_srcptr finv, slong lenfinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_mulmod_preinv(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t f, const gr_poly_t finv, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_powmod_fmpz_binexp(gr_ptr res, gr_srcptr poly, const fmpz_t e, gr_srcptr f, slong lenf, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_fmpz_binexp(gr_poly_t res, const gr_poly_t poly, const fmpz_t e, const gr_poly_t f, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_powmod_fmpz_binexp_preinv(gr_ptr res, gr_srcptr poly, const fmpz_t e, gr_srcptr f, slong lenf, gr_srcptr finv, slong lenfinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_fmpz_binexp_preinv(gr_poly_t res, const gr_poly_t poly, const fmpz_t e, const gr_poly_t f, const gr_poly_t finv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_powmod_x_fmpz_preinv(gr_ptr res, const fmpz_t e, gr_srcptr f, slong lenf, gr_srcptr finv, slong lenfinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_x_fmpz_preinv(gr_poly_t res, const fmpz_t e, const gr_poly_t f, const gr_poly_t finv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_powmod_ui_binexp(gr_ptr res, gr_srcptr poly, ulong e, gr_srcptr f, slong lenf, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_ui_binexp(gr_poly_t res, const gr_poly_t poly, ulong e, const gr_poly_t f, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_powmod_ui_binexp_preinv(gr_ptr res, gr_srcptr poly, ulong e, gr_srcptr f, slong lenf, gr_srcptr finv, slong lenfinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_ui_binexp_preinv(gr_poly_t res, const gr_poly_t poly, ulong e, const gr_poly_t f, const gr_poly_t finv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_powmod_fmpz_sliding_preinv(gr_ptr res, gr_srcptr poly, const fmpz_t e, ulong k, gr_srcptr f, slong lenf, gr_srcptr finv, slong lenfinv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_powmod_fmpz_sliding_preinv(gr_poly_t res, const gr_poly_t poly, const fmpz_t e, ulong k, const gr_poly_t f, const gr_poly_t finv, gr_ctx_t ctx);

/* boilerplate */
typedef int ((*_gr_method_compose_mod_op)(gr_ptr, gr_srcptr, slong, gr_srcptr, gr_srcptr, slong, gr_ctx_t));
WARN_UNUSED_RESULT int gr_poly_compose_mod_wrapper(_gr_method_compose_mod_op _compose_mod, gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, gr_ctx_t ctx);
typedef int ((*_gr_method_compose_mod_preinv_op)(gr_ptr, gr_srcptr, slong, gr_srcptr, gr_srcptr, slong, gr_srcptr, slong, gr_ctx_t));
WARN_UNUSED_RESULT int gr_poly_compose_mod_preinv_wrapper(_gr_method_compose_mod_preinv_op _compose_mod, gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, const gr_poly_t poly3inv, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_compose_mod_horner(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_horner(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_mod_brent_kung(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_brent_kung(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_mod(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_compose_mod_horner_preinv(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_srcptr poly3inv, slong inv3len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_horner_preinv(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, const gr_poly_t poly3inv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_mod_brent_kung_preinv(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_srcptr poly3inv, slong inv3len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_brent_kung_preinv(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, const gr_poly_t poly3inv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_mod_preinv(gr_ptr res, gr_srcptr poly1, slong len1, gr_srcptr poly2, gr_srcptr poly3, slong len3, gr_srcptr poly3inv, slong inv3len, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_preinv(gr_poly_t res, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly3, const gr_poly_t poly3inv, gr_ctx_t ctx);

WARN_UNUSED_RESULT int _gr_poly_reduce_matrix_mod_poly(gr_mat_t A, const gr_mat_t B, const gr_poly_t f, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_precompute_matrix(gr_mat_t A, gr_srcptr poly1, gr_srcptr poly2, slong len2, gr_srcptr poly2inv, slong len2inv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_precompute_matrix(gr_mat_t A, const gr_poly_t poly1, const gr_poly_t poly2, const gr_poly_t poly2inv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int _gr_poly_compose_mod_brent_kung_precomp_preinv(gr_ptr res, gr_srcptr poly1, slong len1, const gr_mat_t A, gr_srcptr poly3, slong len3, gr_srcptr poly3inv, slong len3inv, gr_ctx_t ctx);
WARN_UNUSED_RESULT int gr_poly_compose_mod_brent_kung_precomp_preinv(gr_poly_t res, const gr_poly_t poly1, const gr_mat_t A, const gr_poly_t poly3, const gr_poly_t poly3inv, gr_ctx_t ctx);

/* Test functions */

void _gr_poly_test_mullow(gr_method_poly_binary_trunc_op mullow_impl, gr_method_poly_binary_trunc_op mullow_ref, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_mulmid(gr_method_poly_binary_trunc2_op mulmid_impl, gr_method_poly_binary_trunc2_op mulmid_ref, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_approx_mulmid_pos_entrywise_accurate(gr_method_poly_binary_trunc2_op mulmid_impl, gr_method_poly_binary_trunc2_op mulmid_ref,
    gr_srcptr rel_tol, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_divrem(gr_method_poly_binary_binary_op divrem_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_div(gr_method_poly_binary_op div_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_inv_series(gr_method_poly_unary_trunc_op inv_series_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_div_series(gr_method_poly_binary_trunc_op div_series_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_gcd_field(gr_method_poly_gcd_op gcd_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_gcd_ufd(gr_method_poly_gcd_op gcd_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);
void _gr_poly_test_xgcd(gr_method_poly_xgcd_op xgcd_impl, flint_rand_t state, slong iters, slong maxn, gr_ctx_t ctx);

#ifdef __cplusplus
}
#endif

#endif
