Comparison of programming languages (associative array): Difference between revisions

Revision as of 01:10, 20 January 2011

Revision as of 19:20, 1 February 2011

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=== D ===

[[D programming language|D]] offers direct support for associative arrays

in the core language - they are implemented as a chaining hash table with binary trees<ref>{{Cite web|url=http://www.digitalmars.com/webnewsd/newsgroups2.php?art_group=digitalmars0/hash-map.D&article_id=30153html |title=DAssociative NewsletterArrays |accessdate=20082011-0602-1501 |work= |date= }}</ref>. The equivalent example would be:

<source lang="d">

int main() {

charstring[][char[] string ] phone_book;

phone_book["Sally Smart"] = "555-9999";

phone_book["John Doe"] = "555-1212";

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<source lang="d">

foreach (key, value; phone_book) {

writefln writeln("Number for $name" ~ key ~ ": $number\n", key,~ value ~ "\n" );

}

</source>