WIP project still in dev.

MISC Remove bias from examples.
Change in the license type. Update legal instrument.

src/Layer.h

@@ -14,6 +14,7 @@
 #include <fstream>
 #include <vector>
 #include <algorithm>
+#include <cassert> // for assert()
 
 class Layer {
 public:
@@ -25,14 +26,36 @@ public:
 
   Layer(int num_nodes, int num_inputs_per_node) {
     m_num_nodes = num_nodes;
+    m_num_inputs_per_node = num_inputs_per_node;
     m_nodes = std::vector<Node>(num_nodes, Node(num_inputs_per_node));
   };
 
   ~Layer() {
-
+    m_nodes.clear();
   };
+
+  void GetOutput(const std::vector<double> &input, std::vector<double> * output) const {
+    assert(input.size() == m_num_inputs_per_node);
+  
+    output->resize(m_num_nodes);
+
+    for (int i = 0; i < m_num_nodes; ++i) {
+      (*output)[i] = m_nodes[i].GetOutput(input);
+    }
+  }
+
+  void UpdateWeights(const std::vector<double> &x,
+                     double m_learning_rate,
+                     double error) {
+    assert(x.size() == m_num_inputs_per_node);
+
+    for (size_t i = 0; i < m_nodes.size(); i++)
+      m_nodes[i].UpdateWeights(x, m_learning_rate, error);
+  };
+
 protected:
   int m_num_nodes;
+  int m_num_inputs_per_node;
   std::vector<Node> m_nodes;
 };