Code cleanup and any test case

Author: danielaparker

README.md

@@ -27,8 +27,10 @@ The library has a number of features, which are listed below:
 
 ## What's new on master
 
-- Enhancements to processing CSV files to output JSON, see example below. 
-- The json value `v` stored in a `json_deserializer` is now retrieved by calling the member function `get_result`, which returns it as `std::move(v)`. 
+- Enhances parser for CSV files that outputs JSON, see example below. 
+- Adds `get_result` member function to `json_deserializer`, which returns the json value `v` stored in a `json_deserializer` as `std::move(v)`. The `root()` member function has been deprecated but is still supported.
+- Adds `is_valid` member function to `json_deserializer`
+- Enhances json::any class, adds type checks when casting back to original value
 
 ## Using the jsoncons library
 

src/jsoncons/json_deserializer.hpp

@@ -50,18 +50,17 @@ class basic_json_deserializer : public basic_json_input_handler<Char>
     basic_json<Char,Alloc> get_result()
     {
         is_valid_ = false;
-        return std::move(result);
+        return std::move(result_);
     }
 
 //  Deprecated
     basic_json<Char,Alloc>& root()
     {
-        return result;
+        return result_;
     }
 
-    basic_json<Char,Alloc> result;
-
 private:
+    basic_json<Char,Alloc> result_;
 
     void push_object()
     {
@@ -129,7 +128,7 @@ class basic_json_deserializer : public basic_json_input_handler<Char>
         }
         else
         {
-            result.swap(stack_[0].value);
+            result_.swap(stack_[0].value);
         }
         pop_object();
     }
@@ -154,7 +153,7 @@ class basic_json_deserializer : public basic_json_input_handler<Char>
         }
         else
         {
-            result.swap(stack_[0].value);
+            result_.swap(stack_[0].value);
         }
         pop_array();
     }

test_suite/src/json_any_tests.cpp

@@ -22,6 +22,30 @@ using jsoncons::json_exception;
 using std::string;
 using boost::numeric::ublas::matrix;
 
+bool check_any_exception( jsoncons::json_exception_0 const& ex ) { return true; }
+
+BOOST_AUTO_TEST_CASE(test_any_const_ref)
+{
+    json obj;
+    matrix<double> A(2,2);
+    A(0,0) = 1;
+    A(0,1) = 2;
+    A(1,0) = 3;
+    A(1,1) = 4;
+
+    obj.set("A",json::any(A));
+
+    const matrix<double>& B = obj["A"].any_cast<const matrix<double>&>();
+
+	BOOST_CHECK_CLOSE(B(0,0),1.0,0.0000001);
+
+    const matrix<double> C = obj["A"].any_cast<const matrix<double>>();
+
+	BOOST_CHECK_CLOSE(C(0,0),1.0,0.0000001);
+
+    BOOST_CHECK_EXCEPTION(obj["A"].any_cast<const matrix<int>>(), jsoncons::json_exception_0, check_any_exception);
+}
+
 BOOST_AUTO_TEST_CASE(test_any)
 {
     json obj;