4363fd64c4
Changed bool to uint32_t in bit fields to have 4-byte packings for 32 bits: "c++ compilers will allocate bit-fields in memory as follows: several consecutive bit-field members of the same type will be allocated sequentially. As soon as a new type needs to be allocated, it will be aligned with the beginning of the next logical memory block." References: - https://msdn.microsoft.com/en-us/library/ewwyfdbe.aspx - http://stackoverflow.com/questions/308364/c-bitfield-packing-with-bools/308383#308383
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*
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Copyright (c) 2016, Project OSRM contributors
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ENGINE_HINT_HPP
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#define ENGINE_HINT_HPP
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#include "engine/phantom_node.hpp"
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#include "util/coordinate.hpp"
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#include <string>
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#include <cstdint>
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#include <iosfwd>
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namespace osrm
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{
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namespace engine
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{
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// Fwd. decls.
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namespace datafacade
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{
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class BaseDataFacade;
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}
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// Is returned as a temporary identifier for snapped coodinates
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struct Hint
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{
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PhantomNode phantom;
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std::uint32_t data_checksum;
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bool IsValid(const util::Coordinate new_input_coordinates,
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const datafacade::BaseDataFacade &facade) const;
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std::string ToBase64() const;
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static Hint FromBase64(const std::string &base64Hint);
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friend bool operator==(const Hint &, const Hint &);
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friend std::ostream &operator<<(std::ostream &, const Hint &);
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};
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static_assert(sizeof(Hint) == 60 + 4, "Hint is bigger than expected");
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constexpr std::size_t ENCODED_HINT_SIZE = 88;
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static_assert(ENCODED_HINT_SIZE / 4 * 3 >= sizeof(Hint), "ENCODED_HINT_SIZE does not match size of Hint");
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}
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}
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#endif
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