pqc/external/flint-2.4.3/padic_mat/fprint.c
2014-05-24 23:16:06 +02:00

143 lines
4.0 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2011 Sebastian Pancratz
******************************************************************************/
#include "fmpz_mat.h"
#include "padic_mat.h"
int padic_mat_fprint(FILE * file, const padic_mat_t A, const padic_ctx_t ctx)
{
const slong r = padic_mat(A)->r;
const slong c = padic_mat(A)->c;
if (padic_mat_is_empty(A))
{
flint_fprintf(file, "%wd %wd\n", r, c);
return 1;
}
if (ctx->mode == PADIC_TERSE)
{
slong i, j, v;
fmpz_t s, t;
fmpz_init(s);
fmpz_init(t);
flint_fprintf(file, "%wd %wd ", r, c);
for (i = 0; i < r; i++)
for (j = 0; j < c; j++)
{
flint_fprintf(file, " ");
if (fmpz_is_zero(padic_mat_entry(A, i, j)))
{
flint_fprintf(file, "0");
}
else
{
v = A->val
+ fmpz_remove(t, padic_mat_entry(A, i, j), ctx->p);
if (v == 0)
{
fmpz_fprint(file, t);
}
else if (v > 0)
{
fmpz_pow_ui(s, ctx->p, v);
fmpz_mul(t, s, t);
fmpz_fprint(file, t);
}
else /* v < 0 */
{
fmpz_pow_ui(s, ctx->p, -v);
_fmpq_fprint(file, t, s);
}
}
}
fmpz_clear(s);
fmpz_clear(t);
}
else if (ctx->mode == PADIC_SERIES)
{
flint_printf("ERROR (_padic_mat_fprint). Mode PADIC_SERIES not implemented yet.\n");
abort();
}
else if (ctx->mode == PADIC_VAL_UNIT)
{
slong i, j, v;
fmpz_t t;
fmpz_init(t);
flint_fprintf(file, "%wd %wd ", r, c);
for (i = 0; i < r; i++)
for (j = 0; j < c; j++)
{
flint_fprintf(file, " ");
if (fmpz_is_zero(padic_mat_entry(A, i, j)))
{
flint_fprintf(file, "0");
}
else
{
v = A->val
+ fmpz_remove(t, padic_mat_entry(A, i, j), ctx->p);
if (v == 0)
{
fmpz_fprint(file, t);
}
else if (v == 1)
{
fmpz_fprint(file, ctx->p);
flint_fprintf(file, "*");
fmpz_fprint(file, t);
}
else
{
fmpz_fprint(file, ctx->p);
flint_fprintf(file, "^%wd*", v);
fmpz_fprint(file, t);
}
}
}
fmpz_clear(t);
}
else
{
flint_printf("ERROR (_padic_mat_fprint). Unknown print mode.\n");
abort();
}
return 1;
}