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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
public class intmm
{
public static int size;
public static Random rand;
public static void Init2DMatrix(out int[,] m, out int[][] refm)
{
int i, j, temp;
i = 0;
m = new int[size, size];
refm = new int[size][];
for (int k = 0; k < refm.Length; k++)
refm[k] = new int[size];
while (i < size)
{
j = 0;
while (j < size)
{
temp = rand.Next();
m[i, j] = temp - (temp / 120) * 120 - 60;
refm[i][j] = temp - (temp / 120) * 120 - 60;
j++;
}
i++;
}
}
public static void InnerProduct2D(out int res, ref int[,] a, ref int[,] b, int row, int col)
{
int i;
res = 0;
i = 0;
while (i < size)
{
res = res + a[row, i] * b[i, col];
i++;
}
}
public static void InnerProduct2DRef(out int res, ref int[][] a, ref int[][] b, int row, int col)
{
int i;
res = 0;
i = 0;
while (i < size)
{
res = res + a[row][i] * b[i][col];
i++;
}
}
public static void Init3DMatrix(int[,,] m, int[][] refm)
{
int i, j, temp;
i = 0;
while (i < size)
{
j = 0;
while (j < size)
{
temp = rand.Next();
m[0, i, j] = temp - (temp / 120) * 120 - 60;
refm[i][j] = temp - (temp / 120) * 120 - 60;
j++;
}
i++;
}
}
public static void InnerProduct3D(out int res, int[,,] a, int[,,] b, int row, int col)
{
int i;
res = 0;
i = 0;
while (i < size)
{
res = res + a[0, row, i] * b[0, i, col];
i++;
}
}
public static void InnerProduct3DRef(out int res, int[][] a, int[][] b, int row, int col)
{
int i;
res = 0;
i = 0;
while (i < size)
{
res = res + a[row][i] * b[i][col];
i++;
}
}
public static int Main()
{
bool pass = false;
rand = new Random();
size = rand.Next(2, 10);
Console.WriteLine();
Console.WriteLine("2D Array");
Console.WriteLine("Testing inner product of {0} by {0} matrices", size);
Console.WriteLine("Matrix element stores random integer");
Console.WriteLine("array set/get, ref/out param are used");
int[,] ima2d = new int[size, size];
int[,] imb2d = new int[size, size];
int[,] imr2d = new int[size, size];
int[][] refa2d = new int[size][];
int[][] refb2d = new int[size][];
int[][] refr2d = new int[size][];
for (int k = 0; k < refr2d.Length; k++)
refr2d[k] = new int[size];
Init2DMatrix(out ima2d, out refa2d);
Init2DMatrix(out imb2d, out refb2d);
int m = 0;
int n = 0;
while (m < size)
{
n = 0;
while (n < size)
{
InnerProduct2D(out imr2d[m, n], ref ima2d, ref imb2d, m, n);
InnerProduct2DRef(out refr2d[m][n], ref refa2d, ref refb2d, m, n);
n++;
}
m++;
}
for (int i = 0; i < size; i++)
{
pass = true;
for (int j = 0; j < size; j++)
if (imr2d[i, j] != refr2d[i][j])
{
Console.WriteLine("i={0}, j={1}, imr2d[i,j] {2}!=refr2d[i][j] {3}", i, j, imr2d[i, j], refr2d[i][j]);
pass = false;
}
}
Console.WriteLine();
Console.WriteLine("3D Array");
Console.WriteLine("Testing inner product of one slice of two 3D matrices");
Console.WriteLine("Matrix element stores random integer");
int[,,] ima3d = new int[size + 5, size, size + 1];
int[,,] imb3d = new int[size + 4, size + 1, size];
int[,,] imr3d = new int[size + 3, size, size];
for (int i = 0; i < size; i++)
for (int j = 0; j < size; j++)
imr3d[i, j, 0] = 1;
int[][] refa3d = new int[size][];
int[][] refb3d = new int[size][];
int[][] refr3d = new int[size][];
for (int k = 0; k < refa3d.Length; k++)
refa3d[k] = new int[size];
for (int k = 0; k < refb3d.Length; k++)
refb3d[k] = new int[size];
for (int k = 0; k < refr3d.Length; k++)
refr3d[k] = new int[size];
Init3DMatrix(ima3d, refa3d);
Init3DMatrix(imb3d, refb3d);
m = 0;
n = 0;
while (m < size)
{
n = 0;
while (n < size)
{
InnerProduct3D(out imr3d[m, n, 0], ima3d, imb3d, m, n);
InnerProduct3DRef(out refr3d[m][n], refa3d, refb3d, m, n);
n++;
}
m++;
}
for (int i = 0; i < size; i++)
{
pass = true;
for (int j = 0; j < size; j++)
if (imr3d[i, j, 0] != refr3d[i][j])
{
Console.WriteLine("i={0}, j={1}, imr3d[i,j,0] {2}!=refr3d[i][j] {3}", i, j, imr3d[i, j, 0], refr3d[i][j]);
pass = false;
}
}
Console.WriteLine();
if (pass)
{
Console.WriteLine("PASSED");
return 100;
}
else
{
Console.WriteLine("FAILED");
return 1;
}
}
}
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