aa9bc17601
BMakefiles and other bits will follow. Requested by: Andrey Chernov Made world by: Chuck Robey
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/* mpz_out_str(stream, base, integer) -- Output to STREAM the multi prec.
|
|
integer INTEGER in base BASE.
|
|
|
|
Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Library General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The GNU MP Library 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 Library General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include <stdio.h>
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
|
|
size_t
|
|
#if __STDC__
|
|
mpz_out_str (FILE *stream, int base, mpz_srcptr x)
|
|
#else
|
|
mpz_out_str (stream, base, x)
|
|
FILE *stream;
|
|
int base;
|
|
mpz_srcptr x;
|
|
#endif
|
|
{
|
|
mp_ptr xp;
|
|
mp_size_t x_size = x->_mp_size;
|
|
unsigned char *str;
|
|
size_t str_size;
|
|
size_t i;
|
|
size_t written;
|
|
char *num_to_text;
|
|
TMP_DECL (marker);
|
|
|
|
if (stream == 0)
|
|
stream = stdout;
|
|
|
|
if (base >= 0)
|
|
{
|
|
if (base == 0)
|
|
base = 10;
|
|
num_to_text = "0123456789abcdefghijklmnopqrstuvwxyz";
|
|
}
|
|
else
|
|
{
|
|
base = -base;
|
|
num_to_text = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
|
|
}
|
|
|
|
if (x_size == 0)
|
|
{
|
|
fputc ('0', stream);
|
|
return ferror (stream) ? 0 : 1;
|
|
}
|
|
|
|
written = 0;
|
|
|
|
if (x_size < 0)
|
|
{
|
|
fputc ('-', stream);
|
|
x_size = -x_size;
|
|
written = 1;
|
|
}
|
|
|
|
TMP_MARK (marker);
|
|
str_size = ((size_t) (x_size * BITS_PER_MP_LIMB
|
|
* __mp_bases[base].chars_per_bit_exactly)) + 3;
|
|
str = (unsigned char *) TMP_ALLOC (str_size);
|
|
|
|
/* Move the number to convert into temporary space, since mpn_get_str
|
|
clobbers its argument + needs one extra high limb.... */
|
|
xp = (mp_ptr) TMP_ALLOC ((x_size + 1) * BYTES_PER_MP_LIMB);
|
|
MPN_COPY (xp, x->_mp_d, x_size);
|
|
|
|
str_size = mpn_get_str (str, base, xp, x_size);
|
|
|
|
/* mpn_get_str might make some leading zeros. Skip them. */
|
|
while (*str == 0)
|
|
{
|
|
str_size--;
|
|
str++;
|
|
}
|
|
|
|
/* Translate to printable chars. */
|
|
for (i = 0; i < str_size; i++)
|
|
str[i] = num_to_text[str[i]];
|
|
str[str_size] = 0;
|
|
|
|
{
|
|
size_t fwret;
|
|
fwret = fwrite ((char *) str, 1, str_size, stream);
|
|
written += fwret;
|
|
}
|
|
|
|
TMP_FREE (marker);
|
|
return ferror (stream) ? 0 : written;
|
|
}
|