{"id":476,"date":"2017-02-03T06:07:15","date_gmt":"2017-02-03T06:07:15","guid":{"rendered":"http:\/\/www.rangakrish.com\/?p=476"},"modified":"2017-04-08T08:22:21","modified_gmt":"2017-04-08T08:22:21","slug":"multi-value-return-in-c-7-0","status":"publish","type":"post","link":"https:\/\/www.rangakrish.com\/index.php\/2017\/02\/03\/multi-value-return-in-c-7-0\/","title":{"rendered":"Multi-value Return in C# 7.0"},"content":{"rendered":"

One of the nice language enhancements to C# in the latest release (7.0) is the ability to return multiple values from a function. Although one could use Tuples<\/strong><\/em> for this purpose, it is not an elegant or efficient approach. For more details, see this article<\/a>.<\/p>\n

By the way, returning multiple values from a function is not unique\u00a0to C#. It is available in many languages. In an earlier article<\/a>, I showed how Lisp supports this feature.<\/p>\n

The following example shows how to use this feature in C#. I tried this in Visual Studio Professional 2017 RC (you have to add System.ValueTuple<\/strong><\/em> NuGet package to the current project to get this working.)<\/p>\n

\"Multi-value<\/a>
Multi-value Return in C#<\/strong><\/figcaption><\/figure>\n

As you can see, returning multiple values from a function makes a lot of sense when the values are logically related.<\/p>\n

Just for comparison, I am giving below the same functionality implemented in Lisp.<\/p>\n

\"Multi-value<\/a>
Multi-value Return in Lisp<\/strong><\/figcaption><\/figure>\n

If you would like more details on this feature as supported in Lisp, take a look at\u00a0this blog<\/a>.<\/p>\n

Have a great day!<\/p>\n","protected":false},"excerpt":{"rendered":"

One of the nice language enhancements to C# in the latest release (7.0) is the ability to return multiple values from a function. Although one could use Tuples for this purpose, it is not an elegant or efficient approach. For more details, see this article. By the way, returning multiple values from a function is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[17],"tags":[91,19,90],"class_list":["post-476","post","type-post","status-publish","format-standard","hentry","category-programming","tag-c-sharp","tag-lisp","tag-multi-value"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9OLnF-7G","jetpack-related-posts":[{"id":122,"url":"https:\/\/www.rangakrish.com\/index.php\/2016\/01\/06\/lisp-returning-multiple-values-from-a-function\/","url_meta":{"origin":476,"position":0},"title":"Lisp: Returning Multiple Values From A Function","author":"admin","date":"January 6, 2016","format":false,"excerpt":"One of the interesting features of Lisp is its support for returning multiple values from a function, without bundling the values in a special container. Languages such as Python and Ruby support multi-value return (although there are subtle differences from Lisp). In C++11, we can use std::make_tuple() and std::tie(). To\u2026","rel":"","context":"In "LISP"","block_context":{"text":"LISP","link":"https:\/\/www.rangakrish.com\/index.php\/category\/lisp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2057,"url":"https:\/\/www.rangakrish.com\/index.php\/2020\/07\/19\/calling-lisp-functions-from-elixir\/","url_meta":{"origin":476,"position":1},"title":"Calling Lisp Functions from Elixir","author":"admin","date":"July 19, 2020","format":false,"excerpt":"In the last article\u00a0I showed how we can simulate the idea of Lisp's \"closure\" in Elixir. Today, I would like to demonstrate how we can call Lisp functions from Elixir using the NIF interface. What is the need to integrate Elixir with another language? I can think of two reasons:\u2026","rel":"","context":"In "Elixir"","block_context":{"text":"Elixir","link":"https:\/\/www.rangakrish.com\/index.php\/category\/elixir\/"},"img":{"alt_text":"Using the Lisp Functions","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/07\/Session.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/07\/Session.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/07\/Session.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/07\/Session.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":558,"url":"https:\/\/www.rangakrish.com\/index.php\/2017\/07\/07\/clpython-python-in-common-lisp\/","url_meta":{"origin":476,"position":2},"title":"CLPython – Python in Common Lisp","author":"admin","date":"July 7, 2017","format":false,"excerpt":"My work in the area of NLP requires\u00a0me to work with several frameworks across multiple languages such as Java, Python and Lisp. Sometime ago I got a chance to experiment with CLPython, an open-source implementation of Python in Common Lisp. Although CLPython is not under active development now, I found\u2026","rel":"","context":"In "LISP"","block_context":{"text":"LISP","link":"https:\/\/www.rangakrish.com\/index.php\/category\/lisp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":963,"url":"https:\/\/www.rangakrish.com\/index.php\/2018\/06\/24\/calling-go-functions-from-lisp-part-2\/","url_meta":{"origin":476,"position":3},"title":"Calling Go Functions from Lisp – Part 2","author":"admin","date":"June 24, 2018","format":false,"excerpt":"In my earlier article Calling Go Functions from Lisp, I explained the steps for making calls to Go functions from another language, specifically LispWorks Lisp. Today, I want to give a slightly more\u00a0 interesting example showing the use of Go channels\u00a0through exported functions. Go is widely admired for its native\u2026","rel":"","context":"In "Golang"","block_context":{"text":"Golang","link":"https:\/\/www.rangakrish.com\/index.php\/category\/golang\/"},"img":{"alt_text":"Go Functions","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2018\/06\/Go-Functions.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3675,"url":"https:\/\/www.rangakrish.com\/index.php\/2025\/04\/24\/interfaces-without-inheritance-comparing-c-and-common-lisp\/","url_meta":{"origin":476,"position":4},"title":"Interfaces Without Inheritance: Comparing C++ and Common Lisp","author":"admin","date":"April 24, 2025","format":false,"excerpt":"Clean interface design is a crucial aspect of software engineering since it enables code flexibility, reuse, and maintainability. Developers who prefer an object-oriented approach typically rely on inheritance to define the interface and thus establish type relationships. While this can lead to a good design if approached carefully, detractors of\u2026","rel":"","context":"In "C++"","block_context":{"text":"C++","link":"https:\/\/www.rangakrish.com\/index.php\/category\/c\/"},"img":{"alt_text":"Rectangle and Circle Defined","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2025\/04\/cpp2-251x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":928,"url":"https:\/\/www.rangakrish.com\/index.php\/2018\/05\/27\/calling-go-functions-from-lisp\/","url_meta":{"origin":476,"position":5},"title":"Calling Go Functions from Lisp","author":"admin","date":"May 27, 2018","format":false,"excerpt":"For the past few weeks I was travelling in the USA and had the pleasure of meeting several friends, some of whom are senior developers and architects. It was interesting to learn that many of them were either using Go language in their daily work, or were passionately endorsing the\u2026","rel":"","context":"In "Golang"","block_context":{"text":"Golang","link":"https:\/\/www.rangakrish.com\/index.php\/category\/golang\/"},"img":{"alt_text":"Part of Header File","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2018\/05\/Header-file.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2018\/05\/Header-file.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2018\/05\/Header-file.png?resize=525%2C300 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/posts\/476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/comments?post=476"}],"version-history":[{"count":0,"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/posts\/476\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/media?parent=476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/categories?post=476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rangakrish.com\/index.php\/wp-json\/wp\/v2\/tags?post=476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}