1 files changed, 23 insertions, 0 deletions
diff --git a/boost/multiprecision/detail/digits.hpp b/boost/multiprecision/detail/digits.hpp
new file mode 100644
index 0000000000..8752f5b5b0
--- /dev/null
+++ b/boost/multiprecision/detail/digits.hpp
@@ -0,0 +1,23 @@
+///////////////////////////////////////////////////////////////
+//  Copyright 2012 John Maddock. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
+
+#ifndef BOOST_MP_DIGITS_HPP
+#define BOOST_MP_DIGITS_HPP
+
+namespace boost{ namespace multiprecision{ namespace detail{
+
+inline unsigned long digits10_2_2(unsigned long d10)
+{
+   return (d10 * 1000uL) / 301uL + ((d10 * 1000uL) % 301 ? 2u : 1u);
+}
+
+inline unsigned long digits2_2_10(unsigned long d2)
+{
+   return (d2 * 301uL) / 1000uL;
+}
+
+}}} // namespaces
+
+#endif