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38 lines
1.9 KiB
XML
38 lines
1.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
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<pkgmetadata>
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<maintainer type="person">
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<email>lssndrbarbieri@gmail.com</email>
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<name>Alessandro Barbieri</name>
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</maintainer>
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<longdescription lang="en">
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Overview
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This repository aims to provide a set of excellent hash map implementations, as well as a btree alternative to std::map and std::set, with the following characteristics:
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Header only: nothing to build, just copy the parallel_hashmap directory to your project and you are good to go.
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drop-in replacement for std::unordered_map, std::unordered_set, std::map and std::set
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Compiler with C++11 support required, C++14 and C++17 APIs are provided (such as try_emplace)
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Very efficient, significantly faster than your compiler's unordered map/set or Boost's, or than sparsepp
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Memory friendly: low memory usage, although a little higher than sparsepp
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Supports heterogeneous lookup
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Easy to forward declare: just include phmap_fwd_decl.h in your header files to forward declare Parallel Hashmap containers [note: this does not work currently for hash maps with pointer keys]
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Dump/load feature: when a flat hash map stores data that is std::trivially_copyable, the table can be dumped to disk and restored as a single array, very efficiently, and without requiring any hash computation. This is typically about 10 times faster than doing element-wise serialization to disk, but it will use 10% to 60% extra disk space. See examples/serialize.cc. (flat hash map/set only)
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Automatic support for boost's hash_value() method for providing the hash function (see examples/hash_value.h). Also default hash support for std::pair and std::tuple.
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natvis visualization support in Visual Studio (hash map/set only)
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</longdescription>
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<upstream>
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<bugs-to>https://github.com/greg7mdp/parallel-hashmap/issues</bugs-to>
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<remote-id type="github">greg7mdp/parallel-hashmap</remote-id>
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</upstream>
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</pkgmetadata>
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