tensor.cpp

#include <iostream>
#include <string>
#include <random>
#include <math.h>
#include <fstream>

#include "dais_exc.h"
#include "tensor.h"

#define PI 3.141592654
#define FLT_MAX 3.402823466e+38F /* max value */
#define FLT_MIN 1.175494351e-38F /* min positive value */

using namespace std;


/**
 * Random Initialization
 * 
 * Perform a random initialization of the tensor
 * 
 * @param mean The mean
 * @param std  Standard deviation
 */
void Tensor::init_random(float mean, float std){
    if(data){

        std::default_random_engine generator;
        std::normal_distribution<float> distribution(mean,std);

        for(int i=0;i<r;i++){
            for(int j=0;j<c;j++){
                for(int k=0;k<d;k++){
                    this->operator()(i,j,k)= distribution(generator);
                }
            }
        }    

    }else{
        throw(tensor_not_initialized());
    }
}