stk/Mp/gmp-1.3.2/mpz_out_raw.c

56 lines
1.7 KiB
C

/* mpz_out_raw -- Output a MP_INT in raw, but endianess-independent format.
Copyright (C) 1991, 1992 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 General Public License as published by
the Free Software Foundation; either version 2, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU MP Library; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#include "gmp.h"
#include "gmp-impl.h"
void
#ifdef __STDC__
mpz_out_raw (FILE *file, const MP_INT *x)
#else
mpz_out_raw (file, x)
FILE *file;
const MP_INT *x;
#endif
{
int i;
mp_size s;
mp_size xsize = x->size;
mp_srcptr xp = x->d;
mp_size out_size = xsize * BYTES_PER_MP_LIMB;
/* Make the size 4 bytes on all machines, to make the format portable. */
for (i = 4 - 1; i >= 0; i--)
fputc ((out_size >> (i * BITS_PER_CHAR)) % (1 << BITS_PER_CHAR), file);
/* Output from the most significant digit to the least significant digit,
with each digit also output in decreasing significance order. */
for (s = ABS (xsize) - 1; s >= 0; s--)
{
mp_limb x_digit;
x_digit = xp[s];
for (i = BYTES_PER_MP_LIMB - 1; i >= 0; i--)
fputc ((x_digit >> (i * BITS_PER_CHAR)) % (1 << BITS_PER_CHAR), file);
}
}