comparison DEPENDENCIES/generic/include/boost/numeric/interval/detail/bcc_rounding_control.hpp @ 16:2665513ce2d3

Add boost headers

+/* Boost interval/detail/bcc_rounding_control.hpp file
+ *
+ * Copyright 2000 Jens Maurer
+ * Copyright 2002 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion
+ *
+ * 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_0.txt)
+ */
+
+#ifndef BOOST_NUMERIC_INTERVAL_DETAIL_BCC_ROUNDING_CONTROL_HPP
+#define BOOST_NUMERIC_INTERVAL_DETAIL_BCC_ROUNDING_CONTROL_HPP
+
+#ifndef __BORLANDC__
+#  error This header is only intended for Borland C++.
+#endif
+
+#ifndef _M_IX86
+#  error This header only works on x86 CPUs.
+#endif
+
+#include <float.h>      // Borland C++ rounding control
+
+namespace boost {
+namespace numeric {
+namespace interval_lib {
+namespace detail {
+
+#ifndef BOOST_NUMERIC_INTERVAL_KEEP_EXCEPTIONS_FOR_BCC
+extern "C" { unsigned int _RTLENTRY _fm_init(void); }
+
+struct borland_workaround {
+  borland_workaround() { _fm_init(); }
+};
+
+static borland_workaround borland_workaround_exec;
+#endif // BOOST_NUMERIC_INTERVAL_KEEP_EXCEPTIONS_FOR_BCC
+
+__inline double rint(double)
+{ __emit__(0xD9); __emit__(0xFC); /* asm FRNDINT */ }
+
+struct x86_rounding
+{
+  typedef unsigned int rounding_mode;
+  static void get_rounding_mode(rounding_mode& mode)
+  { mode = _control87(0, 0); }
+  static void set_rounding_mode(const rounding_mode mode)
+  { _control87(mode, 0xffff); } 
+  static double to_int(const double& x) { return rint(x); }
+};
+
+} // namespace detail
+} // namespace interval_lib
+} // namespace numeric
+} // namespace boost
+
+#endif /* BOOST_NUMERIC_INTERVAL_DETAIL_BCC_ROUNDING_CONTROL_HPP */