Packaging: polished

python/external/boost/libs/numpy/example/simple.cpp

@@ -0,0 +1,32 @@
+// Copyright 2011 Stefan Seefeld.
+// 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)
+
+#include <boost/numpy.hpp>
+#include <iostream>
+
+namespace p = boost::python;
+namespace np = boost::numpy;
+
+int main(int argc, char **argv)
+{
+  // Initialize the Python runtime.
+  Py_Initialize();
+  // Initialize NumPy
+  np::initialize();
+  // Create a 3x3 shape...
+  p::tuple shape = p::make_tuple(3, 3);
+  // ...as well as a type for C++ float
+  np::dtype dtype = np::dtype::get_builtin<float>();
+  // Construct an array with the above shape and type
+  np::ndarray a = np::zeros(shape, dtype);
+  // Construct an empty array with the above shape and dtype as well
+  np::ndarray b = np::empty(shape,dtype);
+  // Print the array
+  std::cout << "Original array:\n" << p::extract<char const *>(p::str(a)) << std::endl;
+  // Reshape the array into a 1D array
+  a = a.reshape(p::make_tuple(9));
+  // Print it again.
+  std::cout << "Reshaped array:\n" << p::extract<char const *>(p::str(a)) << std::endl;
+}