+++ /dev/null
-package net.mograsim.logic.core;
-
-import java.util.Arrays;
-
-import net.mograsim.logic.core.types.Bit;
-
-public final class Util
-{
-
- @SuppressWarnings("unchecked")
- public static <T> T[] concat(T[]... arrays)
- {
- if (arrays.length == 0)
- throw new IllegalArgumentException("Cannot concatenate 0 arrays.");
-
- int length = 0;
- for (T[] array : arrays)
- length += array.length;
-
- T[] newArray = Arrays.copyOf(arrays[0], length);
- int appendIndex = arrays[0].length;
- for (int i = 1; i < arrays.length; i++)
- {
- System.arraycopy(arrays[i], 0, newArray, appendIndex, arrays[i].length);
- appendIndex += arrays[i].length;
- }
-
- return newArray;
- }
-
-// @SuppressWarnings("unchecked")
-// public static <T> T[][] split(T[] array, int... lengths)
-// {
-// //TODO: implement array split again; This version contains an illegal cast
-// int totalLength = 0;
-// for(int length : lengths)
-// totalLength += length;
-//
-// if(totalLength != array.length)
-// throw new IllegalArgumentException(); //TODO: add proper error message
-//
-// Object[][] newArray = new Object[lengths.length][];
-// int splitIndex = 0;
-// for(int i = 0; i < lengths.length; i++)
-// {
-// System.arraycopy(array, splitIndex, newArray, 0, lengths[i]);
-// splitIndex += lengths[i];
-// }
-//
-// return (T[][]) newArray;
-// }
-
- public static Bit[] and(Bit[] a, Bit[] b)
- {
- return binBitOp(a, b, Bit::and);
- }
-
- public static Bit[] or(Bit[] a, Bit[] b)
- {
- return binBitOp(a, b, Bit::or);
- }
-
- public static Bit[] xor(Bit[] a, Bit[] b)
- {
- return binBitOp(a, b, Bit::xor);
- }
-
- private static Bit[] binBitOp(Bit[] a, Bit[] b, BitOp op)
- {
- if (a.length != b.length)
- throw new IllegalArgumentException("Bit Arrays were not of equal length.");
- Bit[] out = new Bit[a.length];
- for (int i = 0; i < a.length; i++)
- {
- out[i] = op.execute(a[i], b[i]);
- }
- return out;
- }
-
- public static Bit[] not(Bit[] a)
- {
- Bit[] out = new Bit[a.length];
- for (int i = 0; i < a.length; i++)
- {
- out[i] = a[i].not();
- }
- return out;
- }
-
- /**
- * uses the {@link Bit#combineWith(Bit)} method, does not create a new array, the result is stored in the first array.
- *
- * @author Christian Femers
- */
- public static Bit[] combineInto(Bit[] dest, Bit[] addition)
- {
- if (dest.length != addition.length)
- throw new IllegalArgumentException("Bit Arrays were not of equal length.");
- for (int i = 0; i < addition.length; i++)
- {
- dest[i] = dest[i].join(addition[i]);
- }
- return dest;
- }
-
- interface BitOp
- {
- Bit execute(Bit a, Bit b);
- }
-}