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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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package java.util.function;

/**
 * Represents a function that produces a double-valued result.  This is the
 * {@code double}-producing primitive specialization for {@link Function}.
 *
 * <p>This is a <a href="package-summary.html">functional interface</a>
 * whose functional method is {@link #applyAsDouble(Object)}.
 *
 * @param <T> the type of the input to the function
 *
 * @see Function
 * @since 1.8
 */
@FunctionalInterface
public interface ToDoubleFunction<T> {

    /**
     * Applies this function to the given argument.
     *
     * @param value the function argument
     * @return the function result
     */
    double applyAsDouble(T value);
}