/*

  This file is part of solidity.

  solidity is free software: you can redistribute it and/or modify

  it under the terms of the GNU General Public License as published by

  the Free Software Foundation, either version 3 of the License, or

  (at your option) any later version.

  solidity is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License

  along with solidity.  If not, see <http://www.gnu.org/licenses/>.

*/

// SPDX-License-Identifier: GPL-3.0

/** @file SHA3.h

 * @author Gav Wood <i@gavwood.com>

 * @date 2014

 *

 * The FixedHash fixed-size "hash" container type.

 */

#pragma once

#include <libsolutil/FixedHash.h>

#include <string>

namespace solidity::util

{

/// Calculate Keccak-256 hash of the given input, returning as a 256-bit hash.

h256 keccak256(bytesConstRef _input);

/// Calculate Keccak-256 hash of the given input, returning as a 256-bit hash.

inline h256 keccak256(bytes const& _input) { return keccak256(bytesConstRef(&_input)); }

/// Calculate Keccak-256 hash of the given input (presented as a binary-filled string), returning as a 256-bit hash.

inline h256 keccak256(std::string const& _input) { return keccak256(bytesConstRef(_input)); }

/// Calculate Keccak-256 hash of the given input (presented as a FixedHash), returns a 256-bit hash.

template<unsigned N> inline h256 keccak256(FixedHash<N> const& _input) { return keccak256(_input.ref()); }

}