Regola del tre (C++)

Rule of three - a rule of thumb in C++ (prior to C++11) stating that if a class defines one (or more) of destructor, copy constructor, or copy assignment operator, then it should probably explicitly define all three. Article “Regola del tre (C++)” in Italian Wikipedia has 17.8 points for quality (as of July 1, 2025). The article contains 5 references and 2 sections.

This article has the best quality in Chinese Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Regola del tre (C++)”, its content was written by 6 registered users of Italian Wikipedia and edited by 144 registered Wikipedia users in all languages.

The article is cited 3 times in Italian Wikipedia and cited 113 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Italian): #33753 in July 2020
• Global: #53396 in October 2014

The highest popularity rank from 2008:

• Local (Italian): #455008 in February 2022
• Global: #79907 in December 2017

There are 9 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Chinese (zh) 三法則		29.3793
2	German (de) Dreierregel (C++)		24.3033
3	English (en) Rule of three (C++ programming)		20.2819
4	Ukrainian (uk) Правило трьох (C++)		19.5679
5	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		18.4824
6	Italian (it) Regola del tre (C++)		17.8488
7	Portuguese (pt) Regra dos três (C++)		17.7276
8	Russian (ru) Правило трёх (C++)		15.6139
9	Bulgarian (bg) Голямата тройка (C++)		1.545

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Regola del tre (C++)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Rule of three (C++ programming)		1 011 364
2	Russian (ru) Правило трёх (C++)		140 766
3	German (de) Dreierregel (C++)		68 868
4	Chinese (zh) 三法則		19 621
5	Bulgarian (bg) Голямата тройка (C++)		6 653
6	Ukrainian (uk) Правило трьох (C++)		6 293
7	Italian (it) Regola del tre (C++)		2 530
8	Portuguese (pt) Regra dos três (C++)		2 467
9	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		63

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Regola del tre (C++)" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Rule of three (C++ programming)		1 899
2	Russian (ru) Правило трёх (C++)		543
3	German (de) Dreierregel (C++)		80
4	Chinese (zh) 三法則		68
5	Italian (it) Regola del tre (C++)		32
6	Portuguese (pt) Regra dos três (C++)		15
7	Ukrainian (uk) Правило трьох (C++)		12
8	Bulgarian (bg) Голямата тройка (C++)		10
9	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		9

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Regola del tre (C++)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Rule of three (C++ programming)		59
2	German (de) Dreierregel (C++)		31
3	Russian (ru) Правило трёх (C++)		21
4	Bulgarian (bg) Голямата тройка (C++)		8
5	Chinese (zh) 三法則		8
6	Ukrainian (uk) Правило трьох (C++)		7
7	Italian (it) Regola del tre (C++)		6
8	Portuguese (pt) Regra dos três (C++)		3
9	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		1

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Regola del tre (C++)" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		0
2	Bulgarian (bg) Голямата тройка (C++)		0
3	German (de) Dreierregel (C++)		0
4	English (en) Rule of three (C++ programming)		0
5	Italian (it) Regola del tre (C++)		0
6	Portuguese (pt) Regra dos três (C++)		0
7	Russian (ru) Правило трёх (C++)		0
8	Ukrainian (uk) Правило трьох (C++)		0
9	Chinese (zh) 三法則		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Regola del tre (C++)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Rule of three (C++ programming)		53
2	Chinese (zh) 三法則		24
3	Russian (ru) Правило трёх (C++)		20
4	German (de) Dreierregel (C++)		6
5	Ukrainian (uk) Правило трьох (C++)		4
6	Bulgarian (bg) Голямата тройка (C++)		3
7	Italian (it) Regola del tre (C++)		3
8	Arabic (ar) قاعدة الثلاثة (برمجة سي++)		0
9	Portuguese (pt) Regra dos três (C++)		0

More...

#	Language	Value
ar	Arabic قاعدة الثلاثة (برمجة سي++)
bg	Bulgarian Голямата тройка (C++)
de	German Dreierregel (C++)
en	English Rule of three (C++ programming)
it	Italian Regola del tre (C++)
pt	Portuguese Regra dos três (C++)
ru	Russian Правило трёх (C++)
uk	Ukrainian Правило трьох (C++)
zh	Chinese 三法則

Best Rank

Italian: #455008 02.2022

Global: #79907 12.2017

Best Rank

Italian: #33753 07.2020

Global: #53396 10.2014

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In Italian Wikipedia the most popular articles on that day were: Niscemi, Morbo di K, Antonio Vergara, Moussa Diaby, Giovanni Borromeo, Antonio Chichiarelli, Il falsario (film 2025), Marty Supreme, I giorni del cielo, United States Immigration and Customs Enforcement.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information