Indexer (programming): Difference between revisions

Revision as of 11:14, 3 January 2025

Revision as of 04:44, 9 January 2025

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== Implementations ==

=== C++ ===

In C++ one can emulate indexing by overloading the {{c++|[]}} operator. The expression {{c++|a[b...]}} translates to a call to the user-defined function {{c++|operator[]}} as {{c++|(a).operator[](b...)}}.<ref>{{cite web|url=https://en.cppreference.com/w/cpp/language/operators|title=C++ operator overloading}}</ref>. Here is an example,

<syntaxhighlight lang="c++">

struct vector{

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=== PHP ===

In PHP indexing can be implemented via the predefined {{python|ArrayAccess}} interface,<ref>{{cite web|url=https://www.php.net/manual/en/class.arrayaccess.php|title=PHP ArrayAccess interface}}</ref>,

<syntaxhighlight lang="php">

<?php