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/* 
 * Copyright (c) 2015-2017, Intel Corporation
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met: 
 * 
 *  * Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *  * Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 *  * Neither the name of Intel Corporation nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE. 
 */ 
 
/** \file 
 * \brief Multibit: build code (for sparse iterators) 
 */ 
 
#ifndef MULTIBIT_BUILD_H 
#define MULTIBIT_BUILD_H 
 
#include "hs_common.h"
#include "multibit_internal.h" 
#include "hash.h"
 
#include <vector> 
 
inline
bool operator==(const mmbit_sparse_iter &a, const mmbit_sparse_iter &b) {
    return a.mask == b.mask && a.val == b.val;
} 
 
namespace std {

template<>
struct hash<mmbit_sparse_iter> {
    size_t operator()(const mmbit_sparse_iter &iter) const {
        return ue2::hash_all(iter.mask, iter.val);
    }
};

} // namespace std

namespace ue2 { 
 
/**
 * \brief Return the size in bytes of a multibit that can store the given
 * number of bits.
 *
 * This will throw a resource limit assertion if the requested mmbit is too
 * large.
 */
u32 mmbit_size(u32 total_bits);

/** \brief Construct a sparse iterator over the values in \a bits for a 
 * multibit of size \a total_bits. */ 
std::vector<mmbit_sparse_iter>
mmbBuildSparseIterator(const std::vector<u32> &bits, u32 total_bits);
 
struct scatter_plan_raw; 
 
void mmbBuildInitRangePlan(u32 total_bits, u32 begin, u32 end, 
                           scatter_plan_raw *out); 
void mmbBuildClearPlan(u32 total_bits, scatter_plan_raw *out); 
 
} // namespace ue2 
 
#endif // MULTIBIT_BUILD_H