Test for overload resolution bug.

See this mail for details:

http://mail.python.org/pipermail/cplusplus-sig/2009-March/014362.html



[SVN r52250]

test/CMakeLists.txt

@@ -95,6 +95,13 @@ bpl_test(keywords keywords_test.py keywords.cpp)
 boost_python_extension(builtin_converters_ext test_builtin_converters.cpp)
 bpl_test(builtin_converters test_builtin_converters.py builtin_converters_ext)
 
+#
+#   See the contents of this file for more details on an existing
+#   overload resoluton bug.
+#
+#   boost_python_extension(overload_resolution test_overload_resolution.cpp)
+#
+
 bpl_test(test_pointer_adoption)
 bpl_test(operators)
 bpl_test(callbacks)

test/test_overload_resolution.cpp

@@ -0,0 +1,53 @@
+// Copyright Troy D. Straszheim 2009
+// 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)
+//
+//
+//  example that shows problems with overloading and automatic conversion.
+//  if you call one of the below functions from python with bool/int/double, 
+//  you'll see that the overload called is first match, not best match.
+//  See overload matching in luabind for an example of how to do this better.
+//
+//  see this mail:
+//  http://mail.python.org/pipermail/cplusplus-sig/2009-March/014362.html
+//
+//  This test isn't called by the cmake/jamfiles.  For future use.
+//
+#include <boost/python/module.hpp>
+#include <boost/python/def.hpp>
+#include <complex>
+#include <boost/python/handle.hpp>
+#include <boost/python/cast.hpp>
+#include <boost/python/object.hpp>
+#include <boost/python/detail/wrap_python.hpp>
+
+using boost::python::def;
+using boost::python::handle;
+using boost::python::object;
+using boost::python::borrowed;
+
+std::string takes_bool(bool b) { return "bool"; }
+std::string takes_int(int b) { return "int"; }
+std::string takes_double(double b) { return "double"; }
+
+
+BOOST_PYTHON_MODULE(overload_resolution)
+{    
+  def("bid", takes_bool);
+  def("bid", takes_int);
+  def("bid", takes_double);
+
+  def("dib", takes_double);
+  def("dib", takes_int);
+  def("dib", takes_bool);
+
+  def("idb", takes_int);
+  def("idb", takes_double);
+  def("idb", takes_bool);
+
+  def("bdi", takes_bool);
+  def("bdi", takes_double);
+  def("bdi", takes_int);
+}
+