Initial revision

1 files changed, 89 insertions, 0 deletions

diff --git a/mpf/out_str.c b/mpf/out_str.c
new file mode 100644
index 000000000..a1bd328ca
--- /dev/null
+++ b/mpf/out_str.c
@@ -0,0 +1,89 @@
+/* mpf_out_str (stream, base, n_digits, op) -- Print N_DIGITS digits from
+   the float OP to STREAM in base BASE.  Return the number of characters
+   written, or 0 if an error occurred.
+
+Copyright (C) 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__
+mpf_out_str (FILE *stream, int base, size_t n_digits, mpf_srcptr op)
+#else
+mpf_out_str (stream, base, n_digits, op)
+     FILE *stream;
+     int base;
+     size_t n_digits;
+     mpf_srcptr op;
+#endif
+{
+  char *str;
+  mp_exp_t exp;
+  size_t written;
+  TMP_DECL (marker);
+
+  TMP_MARK (marker);
+
+  if (base == 0)
+    base = 10;
+  if (n_digits == 0)
+    n_digits = (((op->_mp_prec - 1) * BITS_PER_MP_LIMB)
+		* __mp_bases[base].chars_per_bit_exactly);
+
+  if (stream == 0)
+    stream = stdout;
+
+  str = (char *) TMP_ALLOC (n_digits + 2); /* extra for minus sign and \0 */
+
+  mpf_get_str (str, &exp, base, n_digits, op);
+  n_digits = strlen (str);
+
+  written = 0;
+
+  /* Write sign */
+  if (str[0] == '-')
+    {
+      str++;
+      fputc ('-', stream);
+      written = 1;
+    }
+
+  fwrite ("0.", 1, 2, stream);
+  written += 2;
+
+  /* Write mantissa */
+  {
+    size_t fwret;
+    fwret = fwrite (str, 1, n_digits, stream);
+    written += fwret;
+  }
+
+  /* Write exponent */
+  {
+    int fpret;
+    fpret = fprintf (stream, "@%ld\n", exp);
+    written += fpret;
+  }
+
+  TMP_FREE (marker);
+  return ferror (stream) ? 0 : written;
+}