// SPDX-License-Identifier: MIT
pragma solidity >0.5.0 <0.8.0;

/**
 * @title Lib_Byte32Utils
 */
library Lib_Bytes32Utils {

    /**********************
     * Internal Functions *
     **********************/

    /**
     * Converts a bytes32 value to a boolean. Anything non-zero will be converted to "true."
     * @param _in Input bytes32 value.
     * @return Bytes32 as a boolean.
     */
    function toBool(
        bytes32 _in
    )
        internal
        pure
        returns (
            bool
        )
    {
        return _in != 0;
    }

    /**
     * Converts a boolean to a bytes32 value.
     * @param _in Input boolean value.
     * @return Boolean as a bytes32.
     */
    function fromBool(
        bool _in
    )
        internal
        pure
        returns (
            bytes32
        )
    {
        return bytes32(uint256(_in ? 1 : 0));
    }

    /**
     * Converts a bytes32 value to an address. Takes the *last* 20 bytes.
     * @param _in Input bytes32 value.
     * @return Bytes32 as an address.
     */
    function toAddress(
        bytes32 _in
    )
        internal
        pure
        returns (
            address
        )
    {
        return address(uint160(uint256(_in)));
    }

    /**
     * Converts an address to a bytes32.
     * @param _in Input address value.
     * @return Address as a bytes32.
     */
    function fromAddress(
        address _in
    )
        internal
        pure
        returns (
            bytes32
        )
    {
        return bytes32(uint256(_in));
    }
}
