Difference between revisions of "Intermediate C++ Game Programming Tutorial 24"
From Chilipedia
(→Part 2) |
(→Part 2) |
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* <code>std::multimap</code> and <code>std::multiset</code> | * <code>std::multimap</code> and <code>std::multiset</code> | ||
=== Part 2 === | === Part 2 === | ||
+ | * Hash table performance vs. binary tree performance | ||
* Hash table data structure | * Hash table data structure | ||
* <code>std::unordered_map</code> key requirements | * <code>std::unordered_map</code> key requirements |
Revision as of 20:32, 10 March 2018
Associative containers are super useful, both as a convenient fast way to create dictionary or mapping for real-world problems like managing game resources, and as a data structure to help solve more abstract algorithmic computer science problems. And hash tables are fast as balls.
Contents
Topics Covered
Part 1
-
std::map
container interface - Binary tree data structure
-
std::map
key requirements (comparison) -
std::map
gotchas (std::remove_if
andconst
keys) -
std::set
-
std::multimap
andstd::multiset
Part 2
- Hash table performance vs. binary tree performance
- Hash table data structure
-
std::unordered_map
key requirements - Hash combining
-
std::unordered_map
bucket interface and hashing policy - When to choose
std::map
overstd::unordered_map