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-rw-r--r--contrib/libgmp/mpz/out_str.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/contrib/libgmp/mpz/out_str.c b/contrib/libgmp/mpz/out_str.c
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+++ b/contrib/libgmp/mpz/out_str.c
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+/* 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;
+}
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