转自: 土法炼钢:怎么实现一个简单的B+Tree In-Disk1. 写在前面说起B+树,大家应该都很熟悉。B+树是一种平衡的多路搜索树,广泛在操作系统和数据库系统用作索引。相比于内存的存取速度,磁盘I/O存取的开销要高上…
btree_new#allocate a new btreebtree_free#free the btreebtree_count#number of items in the btreebtree_set#insert or replace an existing item and return the previousbtree_get#get an existing itembtree_delete#delete and return an itembtree_clone#make an clone of the btree using a copy-on-...
This is implementation of Bayer Trees, sometime referred to as Balanced Tree and normally used for indices of data bases. These routines provide all stuff that is needed to create and destroy; insert, update and delete; load and destroy; search and traverse; check a tree.Sort huge amounts ...
See theonline Doxygen documentation hereorthe Wikifor a detailed reference. The Doxygen documentation can be built from the source tree by running: make html Synopsis Use theprotoccommand to generate.pb-c.cand.pb-c.houtput files from your.protoinput file. The--c_outoptions instructsprotocto ...
include/wil/registry.h(documentation): Type-safe functions to read from, write to, and watch the registry. Also, registry watchers that can call a lambda function or a callback function you provide whenever a certain tree within the Windows registry changes. ...
You can copy thegsldirectory into your source tree so it is available to your compiler, then include the appropriate headers in your program. Alternatively set your compiler'sinclude pathflag to point to the GSL development folder (c:\GSL\includein the example above) or installation folder (aft...
A major difficulty in implementing green barriers is to identify suitable species for forming these structures. The aim of this study was to assess the flammability of some tree and shrub species used in urban forestry and along highways in Curitiba for use in green barriers in the rural-urban...
This is the motivation behind the trie. And as you may have guessed, a trie is indeed a tree, a trie tree so to speak! But, contrary to most binary-trees that you’d use for sorting strings, those that would store entire words in their nodes, each node of a trie holds a single ...
Features of the model generation and its preparation to the interpretation are described. The model generator transforms the abstract syntax tree of each method of the program being simulated into a model of the control flow, forms a computation model that will be executed on JavaVM, and forms ...
SG-Tree is a new data structure for exact nearest neighbor search inspired from Cover Tree and its improvement, which has been used in the TerraPattern project. At a high level, SG-Tree tries to create a hierarchical tree where each node performs a "coarse" clustering. The centers of these...