Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 55 insertions, 0 deletions

diff --git a/boost/python/errors.hpp b/boost/python/errors.hpp
new file mode 100644
index 0000000000..72960d9ea2
--- /dev/null
+++ b/boost/python/errors.hpp
@@ -0,0 +1,55 @@
+//  (C) Copyright David Abrahams 2000.
+// 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)
+//
+//  The author gratefully acknowleges the support of Dragon Systems, Inc., in
+//  producing this work.
+
+#ifndef ERRORS_DWA052500_H_
+# define ERRORS_DWA052500_H_
+
+# include <boost/python/detail/prefix.hpp>
+# include <boost/function/function0.hpp>
+
+namespace boost { namespace python {
+
+struct BOOST_PYTHON_DECL_EXCEPTION error_already_set
+{
+  virtual ~error_already_set();
+};
+
+// Handles exceptions caught just before returning to Python code.
+// Returns true iff an exception was caught.
+BOOST_PYTHON_DECL bool handle_exception_impl(function0<void>);
+
+template <class T>
+bool handle_exception(T f)
+{
+    return handle_exception_impl(function0<void>(boost::ref(f)));
+}
+
+namespace detail { inline void rethrow() { throw; } }
+
+inline void handle_exception()
+{
+    handle_exception(detail::rethrow);
+}
+
+BOOST_PYTHON_DECL void throw_error_already_set();
+
+template <class T>
+inline T* expect_non_null(T* x)
+{
+    if (x == 0)
+        throw_error_already_set();
+    return x;
+}
+
+// Return source if it is an instance of pytype; throw an appropriate
+// exception otherwise.
+BOOST_PYTHON_DECL PyObject* pytype_check(PyTypeObject* pytype, PyObject* source);
+
+}} // namespace boost::python
+
+#endif // ERRORS_DWA052500_H_