gperf
sourcery
| gperf | sourcery | |
|---|---|---|
| 7 | 1 | |
| 2 | 14 | |
| - | - | |
| 4.7 | 5.2 | |
| about 2 months ago | 8 months ago | |
| C++ | C | |
| GNU General Public License v3.0 only | MIT License |
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gperf
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What is an example of non-linear static data structure and what is an accurate breakdown of ds types?
Can create a ton of theoretical examples, but even in practice we use such data structures. An example that first came to mind is gperf which generates static hash table data structure for predefined set of strings (So you cannot add or remove any elements).
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Hashtables
gperf is a generator for perfect hash functions. Its documentation has a bibliography that might contain helpful links.
- Quickly checking that a string belongs to a small set
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Generating the code for an efficient conditional tree to select from a list of strings
I think gperf is what you need. Alternatively cmph.
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How to emulate map literals in C?
Adding to this, there are tools such as gperf which are specifically designed for this. Apparently gperf works well for smaller number of keys but not for really high n (> 100,000 ish) and mph apparently works better for larger n.
- On implementing Bloom Filters in C
sourcery
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On implementing Bloom Filters in C
There's also 'MPH', it's an old and no longer maintained project but it works surprisingly well. I have used it in a project of mine (Sourcery) with a wordlist of 127k words and the performance was better than with CMPH in the tests I did.
What are some alternatives?
parallel-hashmap - A family of header-only, very fast and memory-friendly hashmap and btree containers.
dateutils - nifty command line date and time utilities; fast date calculations and conversion in the shell
meow_hash - Official version of the Meow hash, an extremely fast level 1 hash
mkmcsv - Command-line utility for processing CSV files exported from Cardmarket.
mph - (Fork) Minimal Perfect Hash
ttyplot - a realtime plotting utility for terminal/console with data input from stdin
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
wfc - Wave Function Collapse library in C, plus a command-line tool
encoding - Go package containing implementations of efficient encoding, decoding, and validation APIs.
the_silver_searcher - A code-searching tool similar to ack, but faster.
STC - A modern, user friendly, generic, type-safe and fast C99 container library: String, Vector, Sorted and Unordered Map and Set, Deque, Forward List, Smart Pointers, Bitset and Random numbers.