/*

* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

*

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package java.util.function;

/**

* Represents a function that accepts two arguments and produces a double-valued

* result. This is the {@code double}-producing primitive specialization for

* {@link BiFunction}.

*

* <p>This is a <a href="package-summary.html">functional interface</a>

* whose functional method is {@link #applyAsDouble(Object, Object)}.

*

* @param <T> the type of the first argument to the function

* @param <U> the type of the second argument to the function

*

* @see BiFunction

* @since 1.8

*/

@FunctionalInterface

public interface ToDoubleBiFunction<T, U> {

/**

* Applies this function to the given arguments.

*

* @param t the first function argument

* @param u the second function argument

* @return the function result

*/

double applyAsDouble(T t, U u);

}