46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* GNU Mes --- Maxwell Equations of Software
|
|
* Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
|
*
|
|
* This file is part of GNU Mes.
|
|
*
|
|
* GNU Mes 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 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* GNU Mes 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <libmes.h>
|
|
#include <limits.h>
|
|
|
|
char *
|
|
dtoab (double d, int base, int signed_p)
|
|
{
|
|
static char dtoa_buf[40];
|
|
long i = (long)d;
|
|
char *p = ntoab (i, base, signed_p);
|
|
strcpy (dtoa_buf, p);
|
|
long f = (d - (double)i) * (double)100000000000;
|
|
if (f)
|
|
{
|
|
if (f < 0)
|
|
f = -f;
|
|
strcat (dtoa_buf, ".");
|
|
p = ntoab (f, base, 1);
|
|
strcat (dtoa_buf, p);
|
|
p = strchr (dtoa_buf, 0);
|
|
p--;
|
|
while (*p && *p == '0')
|
|
*p-- = 0;
|
|
}
|
|
return dtoa_buf;
|
|
}
|