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Provides functional interfaces for most two-argument functions
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package net.mintern.functions.binary.checked;

/**
 * An operation of type {@code (T, U) -> char}.
 *
 * @param  the type of argument 1
 * @param  the type of argument 2
 * @param  the {@code Exception} type that the operation may throw
 */
@FunctionalInterface
public interface ObjObjToCharE {

    /**
     * Performs this operation.
     *
     * @param t argument 1
     * @param u argument 2
     * @return the result of the operation
     * @throws E if the operation cannot be completed
     */
    char call(T t, U u) throws E;

    /**
     * Binds {@code (t)} to the beginning of {@code f}, returning a new function
     * of type {@code (U) -> char}.
     *
     * @param  the type of argument 1
     * @param  the type of argument 2
     * @param  the {@code Exception} type that the operation may throw
     * @param f the unbound function
     * @param t argument 1
     * @return a new function {@code (U u) -> char} that calls
     *      {@code f.call(t, u)} and returns the result.
     */
    static  net.mintern.functions.unary.checked.ObjToCharE
    bind(ObjObjToCharE f, T t) {
        return (u) -> f.call(t, u);
    }

    /**
     * Binds {@code (t)} to the beginning of {@code this}, returning a new function
     * of type {@code (U) -> char}.
     *
     * @param t argument 1
     * @return a new function {@code (U u) -> char} that calls
     *      {@code this.call(t, u)} and returns the result.
     */
    default net.mintern.functions.unary.checked.ObjToCharE bind(T t) {
        return ObjObjToCharE.bind(this, t);
    }

    /**
     * Binds {@code (u)} to the end of {@code f}, returning a new function
     * of type {@code (T) -> char}.
     *
     * @param  the type of argument 1
     * @param  the type of argument 2
     * @param  the {@code Exception} type that the operation may throw
     * @param f the unbound function
     * @param u argument 2
     * @return a new function {@code (T t) -> char} that calls
     *      {@code f.call(t, u)} and returns the result.
     */
    static  net.mintern.functions.unary.checked.ObjToCharE
    rbind(ObjObjToCharE f, U u) {
        return (t) -> f.call(t, u);
    }

    /**
     * Binds {@code (u)} to the end of {@code this}, returning a new function
     * of type {@code (T) -> char}.
     *
     * @param u argument 2
     * @return a new function {@code (T t) -> char} that calls
     *      {@code this.call(t, u)} and returns the result.
     */
    default net.mintern.functions.unary.checked.ObjToCharE rbind(U u) {
        return ObjObjToCharE.rbind(this, u);
    }

    /**
     * Binds {@code (t, u)} to {@code f}, returning a new function
     * of type {@code () -> char}.
     *
     * @param  the type of argument 1
     * @param  the type of argument 2
     * @param  the {@code Exception} type that the operation may throw
     * @param f the unbound function
     * @param t argument 1
     * @param u argument 2
     * @return a new function {@code () -> char} that calls
     *      {@code f.call(t, u)} and returns the result.
     */
    static  net.mintern.functions.nullary.checked.NilToCharE
    bind(ObjObjToCharE f, T t, U u) {
        return () -> f.call(t, u);
    }

    /**
     * Binds {@code (t, u)} to {@code this}, returning a new function
     * of type {@code () -> char}.
     *
     * @param t argument 1
     * @param u argument 2
     * @return a new function {@code () -> char} that calls
     *      {@code this.call(t, u)} and returns the result.
     */
    default net.mintern.functions.nullary.checked.NilToCharE bind(T t, U u) {
        return ObjObjToCharE.bind(this, t, u);
    }
}