1 files changed, 56 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpf/get_d_2exp.c b/gmp-6.3.0/mpf/get_d_2exp.c
new file mode 100644
index 0000000..440a753
--- /dev/null
+++ b/gmp-6.3.0/mpf/get_d_2exp.c
@@ -0,0 +1,56 @@
+/* double mpf_get_d_2exp (signed long int *exp, mpf_t src).
+
+Copyright 2001-2004, 2017 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 either:
+
+  * the GNU Lesser General Public License as published by the Free
+    Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+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 copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+#include "longlong.h"
+
+
+double
+mpf_get_d_2exp (signed long int *expptr, mpf_srcptr src)
+{
+  mp_size_t size, abs_size;
+  mp_srcptr ptr;
+  int cnt;
+
+  size = SIZ(src);
+  if (UNLIKELY (size == 0))
+    {
+      *expptr = 0;
+      return 0.0;
+    }
+
+  ptr = PTR(src);
+  abs_size = ABS (size);
+  count_leading_zeros (cnt, ptr[abs_size - 1]);
+  cnt -= GMP_NAIL_BITS;
+
+  *expptr = EXP(src) * GMP_NUMB_BITS - cnt;
+  return mpn_get_d (ptr, abs_size, size, -(abs_size * GMP_NUMB_BITS - cnt));
+}