2
Basically what I'm asking whether or not operations like addition are done 'under the hood' to get the indices linear.
int[][] x = new int[5][5]; x[2][3] = 1;
When accessing x[2][3] would it add 2, 5, and 3 and return what's in the memory there?
package util;
public final class NArray extends Object
{
public final float[] X;
public final int[] dimension;
public NArray(int[] d)
{
super();
dimension = d;
int n=1;
for (int i=0; i<dimension.length; ++i)
{
n*=dimension[i];
}
X = new float[n];
}
public NArray(int n, int d)
{
super();
dimension = new int[n];
int s = 1;
for (int i=0; i<dimension.length; ++i)
{
dimension[i] = d;
s *= d;
}
X = new float[s];
}
public void store(float f, int[] i)
{
if (i.length != dimension.length)
{
return;
}
int r = 0;
for (int i0=1; i0<i.length; ++i0)
{
r += dimension[i0-1]+i[i0];
}
X[r] = f;
}
public float load(int[] i)
{
if (i.length != dimension.length)
{
return Float.NaN;
}
int r = 0;
for (int i0=1; i0<i.length; ++i0)
{
r += dimension[i0-1]+i[i0];
}
return X[r];
}
}
