From ef7a850a8f2f81ccaa07f25d9b7ad602e84d88c9 Mon Sep 17 00:00:00 2001
From: Eduardo Pedroni <ep625@york.ac.uk>
Date: Sun, 16 Feb 2014 22:41:46 +0000
Subject: Light refactoring, a good amount of testing done, added some new
 functions.

---
 src/jcgp/function/BitwiseLogic.java | 178 ++++++++++++++++++++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100644 src/jcgp/function/BitwiseLogic.java

(limited to 'src/jcgp/function/BitwiseLogic.java')

diff --git a/src/jcgp/function/BitwiseLogic.java b/src/jcgp/function/BitwiseLogic.java
new file mode 100644
index 0000000..55f5df0
--- /dev/null
+++ b/src/jcgp/function/BitwiseLogic.java
@@ -0,0 +1,178 @@
+package jcgp.function;
+
+import jcgp.Parameters;
+import jcgp.exceptions.InvalidArgumentsException;
+import jcgp.population.Connection;
+
+public class BitwiseLogic {
+
+	public static class And extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 & arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " AND " + arg2 + " = " + result);
+				}
+				return result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+	
+	public static class Or extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 | arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " OR " + arg2 + " = " + result);
+				}
+				return result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	public static class Not extends Function {	
+		private int arity = 1;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int result = ~arg1;
+				if (Parameters.getDebug()) {
+					System.out.println("NOT " + arg1 + " = " + result);
+				}
+				return result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	public static class Xor extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 ^ arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " XOR " + arg2 + " = " + result);
+				}
+				return result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	public static class Nand extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 & arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " NAND " + arg2 + " = " + ~result);
+				}
+				return ~result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	public static class Nor extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 | arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " NOR " + arg2 + " = " + ~result);
+				}
+				return ~result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	public static class Xnor extends Function {	
+		private int arity = 2;
+
+		@Override
+		public Object run(Connection... connections) {
+			if (connections.length < arity) {
+				throw new InvalidArgumentsException("Not enough connections were given.");
+			} else {
+				int arg1 = ((int) connections[0].getValue());
+				int arg2 = ((int) connections[1].getValue());
+				int result = arg1 ^ arg2;
+				if (Parameters.getDebug()) {
+					System.out.println(arg1 + " XNOR " + arg2 + " = " + ~result);
+				}
+				return ~result;
+			}
+		}
+
+		@Override
+		public int getArity() {
+			return arity;
+		}
+	}
+
+	
+	
+}
-- 
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