/*******************************************************************************
* This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* Peter Smith
*******************************************************************************/
package org.boris.expr.function;
import org.boris.expr.Expr;
import org.boris.expr.ExprDouble;
import org.boris.expr.ExprException;
public abstract class DoubleInOutFunction extends AbstractFunction
{
public final Expr evaluate(Expr[] args) throws ExprException {
assertArgCount(args, 1);
return new ExprDouble(evaluate(asDouble(args[0], true)));
}
protected abstract double evaluate(double value) throws ExprException;
}