Page MenuHomec4science
Files F78977142

ArrayUtil.hpp
No OneTemporary
Actions

File Metadata

Created
Sat, Aug 24, 02:21

ArrayUtil.hpp
View Options

/*
* ArrayUtil.cpp
*
* Utility functions for using 1D and 2D arrays
*
* Created on: Oct 8, 2012
* Author: Radu Popescu <radu.popescu@epfl.ch>
*/
#ifndef ARRAY_UTIL_H
#define ARRAY_UTIL_H
#include <cassert>
#include <fstream>
#include <iostream>
/*
* Reads a matrix from a file/. This function handles memory allocation but
* the DeleteMatrix function must be called at the end of the program
*/
void Read(const char *file_name, double **&M, int &n_rows, int &n_cols);
/*
* Reads a vector from a file/. This function handles memory allocation but
* the DeleteMatrix function must be called at the end of the program
*/
void Read(const char *file_name, double *&v, int &n_elem);
// Allocate memory for an n_rows x n_cols matrix
void Allocate(double **&M, const int n_rows, const int n_cols);
// Allocate memory for an n_elem matrix
void Allocate(double *&v, const int n_elem);
// Release memory used by a previously allocated matrix
void Delete(double **&M, const int n_rows);
// Release memory used by a previously allocated vector
void Delete(double *&v);
// Does matrix multiplication C = A * B ; C must be allocated
void Multiply(double **A, double **B, const double n_rows_A,
const double n_cols_A, const double n_rows_B,
const double n_cols_B, double **&C);
// Does matrix multiplication w = v * A; w must be allocated
void Multiply(double *v, double **A, const double n_rows_A,
const double n_cols_A, double *&w);
// Does matrix multiplication w = A * v; w must be allocated
void Multiply(double **A, double *v, const double n_rows_A,
const double n_cols_A, double *&w);
// Does matrix multiplication B = A * s ; B must be allocated
void Multiply(double **A, const double s, const double n_rows_A,
const double n_cols_A, double **&B);
void Print(double **M, const int n_rows, const int n_cols, std::ostream &os);
void Print(double *v, const int n_elem, std::ostream &os, const bool transpose);
#endif // ARRAY_UTIL_H

Event Timeline

c4science · Help