New: richcmp.html, richcmp1.cpp, richcmp2.cpp, richcmp3.cpp.

Still needs more testing. richcmp1.cpp does not compile under windows.


[SVN r10656]

example/richcmp1.cpp

@@ -0,0 +1,63 @@
+// Example by Ralf W. Grosse-Kunstleve & Nicholas K. Sauter
+// This example shows how to use rich comparisons for a vector type.
+// It also shows how to template the entire wrapping of a std::vector.
+// See vector_wrapper.h.
+
+#include <boost/python/class_builder.hpp>
+#include "vector_wrapper.h"
+
+namespace std {
+
+# define VECTOR_BINARY_OPERATORS(oper) \
+  template <class T> \
+  std::vector<bool> \
+  operator##oper(const std::vector<T>& a, const std::vector<T>& b) \
+  { \
+    if (a.size()!=b.size()){throw boost::python::argument_error();} \
+    std::vector<bool> result(a.size()); \
+    for (std::size_t i=0; i<a.size(); i++) { \
+      result[i] = (a[i] ##oper b[i]); \
+    } \
+    return result; \
+  }
+  VECTOR_BINARY_OPERATORS(<)
+  VECTOR_BINARY_OPERATORS(<=)
+  VECTOR_BINARY_OPERATORS(==)
+  VECTOR_BINARY_OPERATORS(!=)
+  VECTOR_BINARY_OPERATORS(>)
+  VECTOR_BINARY_OPERATORS(>=)
+# undef VECTOR_BINARY_OPERATORS
+
+}
+
+namespace {
+
+  void init_module(boost::python::module_builder& this_module)
+  {
+    (void)
+    example::wrap_vector(this_module, "vector_of_bool", bool());
+
+    boost::python::class_builder<
+    std::vector<double>, example::vector_wrapper<double> >
+    py_vector_of_double =
+    example::wrap_vector(this_module, "vector_of_double", double());
+
+    const long comp_operators =
+      (  boost::python::op_lt | boost::python::op_le
+       | boost::python::op_eq | boost::python::op_ne
+       | boost::python::op_gt | boost::python::op_ge);
+    py_vector_of_double.def(boost::python::operators<comp_operators>());
+  }
+
+} // namespace <anonymous>
+
+BOOST_PYTHON_MODULE_INIT(richcmp1)
+{
+  try {
+    boost::python::module_builder this_module("richcmp1");
+    // The actual work is done in separate function in order
+    // to suppress a bogus VC60 warning.
+    init_module(this_module);
+  }
+  catch(...){boost::python::handle_exception();}
+}