139 lines
3.9 KiB
C
139 lines
3.9 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) 2012 Sebastian Pancratz
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Copyright (C) 2013 Mike Hansen
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******************************************************************************/
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#ifdef T
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#include "templates.h"
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/*
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TODO: When op has only one non-zero term, this
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function would omit the parentheses.
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*/
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static void
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__TEMPLATE(T, print) (FILE * file, const TEMPLATE(T, struct) * op,
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const TEMPLATE(T, ctx_t) ctx)
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{
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fputc('(', file);
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TEMPLATE(T, fprint_pretty) (file, op, ctx);
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fputc(')', file);
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}
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int
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_TEMPLATE(T, poly_fprint_pretty) (FILE * file,
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const TEMPLATE(T, struct) * poly, slong len,
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const char *x, const TEMPLATE(T, ctx_t) ctx)
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{
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if (len == 0)
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{
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fputc('0', file);
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}
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else if (len == 1)
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{
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TEMPLATE(T, fprint_pretty) (file, poly + 0, ctx);
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}
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else if (len == 2)
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{
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if (TEMPLATE(T, is_one) (poly + 1, ctx))
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flint_fprintf(file, "%s", x);
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else
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{
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__TEMPLATE(T, print) (file, poly + 1, ctx);
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flint_fprintf(file, "*%s", x);
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}
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if (!TEMPLATE(T, is_zero) (poly + 0, ctx))
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{
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fputc('+', file);
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__TEMPLATE(T, print) (file, poly + 0, ctx);
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}
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}
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else
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{
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slong i = len - 1;
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{
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if (TEMPLATE(T, is_one) (poly + i, ctx))
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flint_fprintf(file, "%s^%wd", x, i);
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else
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{
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__TEMPLATE(T, print) (file, poly + i, ctx);
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flint_fprintf(file, "*%s^%wd", x, i);
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}
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--i;
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}
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for (; i > 1; --i)
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{
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if (TEMPLATE(T, is_zero) (poly + i, ctx))
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continue;
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if (TEMPLATE(T, is_one) (poly + i, ctx))
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flint_fprintf(file, "+%s^%wd", x, i);
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else
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{
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fputc('+', file);
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__TEMPLATE(T, print) (file, poly + i, ctx);
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flint_fprintf(file, "*%s^%wd", x, i);
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}
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}
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if (!TEMPLATE(T, is_zero) (poly + 1, ctx))
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{
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if (TEMPLATE(T, is_one) (poly + 1, ctx))
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{
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fputc('+', file);
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fputs(x, file);
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}
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else
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{
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fputc('+', file);
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__TEMPLATE(T, print) (file, poly + 1, ctx);
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fputc('*', file);
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fputs(x, file);
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}
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}
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if (!TEMPLATE(T, is_zero) (poly + 0, ctx))
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{
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fputc('+', file);
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__TEMPLATE(T, print) (file, poly + 0, ctx);
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}
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}
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return 1;
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}
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int
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TEMPLATE(T, poly_fprint_pretty) (FILE * file, const TEMPLATE(T, poly_t) poly,
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const char *x, const TEMPLATE(T, ctx_t) ctx)
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{
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return _TEMPLATE(T, poly_fprint_pretty) (file, poly->coeffs, poly->length,
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x, ctx);
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}
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#endif
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