Alternatively, you could re-implement the list functions inside your hash-table code, but that approach isn't as "C++-ish". Remember that when you expand your hash table, you must re-hash everything in the current table, since the wrapping due to the modulo function will change.
Feb 27, 2007 · Abstract: Perfect hash functions can potentially be used to compress data in connection with a variety of data management tasks. Though there has been considerable work on how to construct good perfect hash functions, there is a gap between theory and practice among all previous methods on minimal perfect hashing.
CMPH - C Minimal Perfect Hashing Library. The CMPH Library encapsulates the newest and more efficient algorithms in an easy-to-use, production-quality, fast API. The library was designed to work with big entries that cannot fit in the main memory.
Using Hash Function In C++ For User-Defined Classes. Posted on June 5, 2014 by Prateek Joshi. If you are a programmer, you must have heard the term "hash function". In its most general form, a hash function projects a value from a set with many members to a value from a set with a fixed number of members. We basically convert the input into ...
There are a number of existing hashtable implementations for C, from the C standard library hcreate/hdestroy/hsearch, to those in the APR and glib, which also provide prebuilt hash functions. I'd highly recommend using those rather than inventing your own hashtable or hash function; they've been optimized heavily for common use-cases.
May 24, 2013 · Constants can be applied to variables, function parameters and functions themselves. In this tutorial, we are going to talk about hash tables, specifically the STL unordered_map. I like to think of hash tables as a more general form of an array. Arrays are indexed by small integers, whereas hash tables can be indexed by anything. Code
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