Fix issue #1869

Add coveralls badge to README.md
remove coverage stats of examples, tests, benchmark, cmake

.travis.yml

@@ -72,4 +72,4 @@ script:
   - ctest --output-on-failure -j 2
 after_success:
   - cd ..
-  - coveralls -e /usr/include -e build/GoogleMock -e build/NLopt -e build/Eigen3 -e build/JSON -e build/CMakeFiles -E '.*\.h' > /dev/null
+  - coveralls -e tests -e examples -e cmake -e benchmarks -e src/interfaces -e /usr/include -e build/GoogleMock -e build/NLopt -e build/Eigen3 -e build/JSON -e build/CMakeFiles -E '.*\.h' > /dev/null

README.md

@@ -4,6 +4,7 @@
 Develop branch build status:
 
 [![Build Status](https://travis-ci.org/shogun-toolbox/shogun.png?branch=develop)](https://travis-ci.org/shogun-toolbox/shogun)
+[![Coverage Status](https://coveralls.io/repos/shogun-toolbox/shogun/badge.png?branch=develop)](https://coveralls.io/r/shogun-toolbox/shogun?branch=develop)
 
 Buildbot: http://buildbot.shogun-toolbox.org/waterfall.
 

src/shogun/classifier/vw/VwRegressor.cpp

@@ -38,7 +38,7 @@ CVwRegressor::~CVwRegressor()
 {
 	// TODO: the number of weight_vectors depends on num_threads
 	// this should be reimplemented using SGVector (for reference counting)
-	SG_FREE(weight_vectors);
+	release_weight_vectors(weight_vectors);
 	SG_UNREF(loss);
 	SG_UNREF(env);
 }
@@ -222,7 +222,7 @@ void CVwRegressor::load_regressor(char* file)
 
 	// Initialize the weight vector
 	if (weight_vectors)
-		SG_FREE(weight_vectors);
+		release_weight_vectors();
 	init(env);
 
 	vw_size_t local_ngram;
@@ -254,3 +254,10 @@ void CVwRegressor::load_regressor(char* file)
 	}
 	source.close_file();
 }
+
+void CVwRegressor::release_weight_vectors()
+{
+	for (int i = 0; i < num_threads; i++)
+		SG_FREE(weight_vectors[i]);
+	SG_FREE(weight_vectors);
+}

src/shogun/classifier/vw/VwRegressor.h

@@ -118,6 +118,9 @@ class CVwRegressor: public CSGObject
 protected:
 	/// Environment
 	CVwEnvironment* env;
+
+private:
+	void release_weight_vectors();
 };
 
 }