//Weight.cpp
//

#ifndef WEIGHT_C
#define WEIGHT_C

#include <cstdlib>
#include "Weight.h"

using std::rand;

//reader and writer functions
template <class weightType>
inline weightType Weight<weightType>::readWeight () {
  return weight;
}

template <class weightType>
inline void Weight<weightType>::writeWeight (weightType value) {
  weight = value;
}

template <class weightType>
inline weightType Weight<weightType>::readWeightChange () {
  return lastWeightChange;
}

template <class weightType>
void Weight<weightType>::writeWeightChange (weightType value) {
  lastWeightChange = value;
}

template <class weightType>
inline Node<weightType>* Weight<weightType>::readNodePointer () {
  return nodePointer;
}

template <class weightType>
inline void Weight<weightType>::writeNodePointer (Node<weightType> *node) {
  nodePointer = node;
}

//weight randomization functions for various data types
//integer types are initialized to 0 or 1
//floating point types are initialized in the -0.5 to 0.5 range

template<> void Weight<bool>::randomizeWeight () {
  weight = bool(float (rand()) / float (RAND_MAX) + 0.5);
}

template<> void Weight<short>::randomizeWeight () {
  weight = short(float (rand()) / float (RAND_MAX) + 0.5);
}

template<> void Weight<int>::randomizeWeight () {
  weight = int(float (rand()) / float (RAND_MAX) + 0.5);
}

template<> void Weight<float>::randomizeWeight () {
  weight = float (rand()) / float (RAND_MAX) - 0.5;
}

template<> void Weight<double>::randomizeWeight () {
  weight = double (rand()) / double (RAND_MAX) - 0.5;
}

#endif