From f9276a12e6225ace86ed9f32a2ebb601998ec2fe Mon Sep 17 00:00:00 2001
From: Chris Sullivan <sullivan@nscl.msu.edu>
Date: Tue, 19 Apr 2016 18:32:12 -0400
Subject: [PATCH] Added a function to extract intrinsic typed variables from
 python into C++

---
 example_external.cpp  | 24 ++++++++++++++++++++++++
 include/pylingual.hpp |  5 +++++
 2 files changed, 29 insertions(+)
 create mode 100644 example_external.cpp

diff --git a/example_external.cpp b/example_external.cpp
new file mode 100644
index 0000000..17ef400
--- /dev/null
+++ b/example_external.cpp
@@ -0,0 +1,24 @@
+#include <vector>
+#include <iostream>
+#include <string>
+#include <pylingual.hpp>
+
+int main(){
+
+  try{
+
+    pylingual py;
+
+    py.call("x = 42");
+    auto x = py.get<double>("x");
+    cout << x << endl;
+
+    return 0;
+
+
+  }catch(boost::python::error_already_set const &){
+    //Parse and output the exception
+      string perror_str = parse_python_exception();
+    cout << "Error in Python: " << perror_str << endl;
+  }
+}
diff --git a/include/pylingual.hpp b/include/pylingual.hpp
index dc932c2..2f2a4b9 100644
--- a/include/pylingual.hpp
+++ b/include/pylingual.hpp
@@ -53,6 +53,11 @@ class pylingual {
     return Vec;
   }
 
+  template<typename T>
+  T get(const char* var_to_extract) {
+    return extract<T>(main_module.attr(var_to_extract));
+  }
+
   template<typename T>
   void call(const char* code_to_execute,char* var_to_extract,vector<T> &output) {
     exec(code_to_execute,main_namespace);