Categories

JavaScriptPHPHTMLCssPythonWordPressWeb developmentLinuxMySQLAndroidWindowsJavaC++ / C#LayoutReactUbuntuYiiDjangoProgramming1C-BitrixLaravelSystem administrationTelegramJSONDebianPostgreSQLIOSGoogleHtaccessWindows ServerGitMacOSGoogle ChromeCMSWooСommerceBootstrapNginxSQLUnityAPI
Make a leaderReport
B
B
BadCats2016-07-09 19:12:12
C++ / C#
BadCats, 2016-07-09 19:12:12

Question about Generic UpCust/DownCust specification in Generic types?

Why do only interfaces and delegates in C# support the technique of covariance and contravariance in Generic types?

Reply
Answer the question

Answer the question

In order to leave comments, you need to log in

1 answer(s)
Report
X
Xitsa, 2016-07-14
@BadCats

Here is an answer to the same question from Eric Lippert.

Similar questions
E
Ekaterina2020-03-11 03:55:43
How to create a product catalog with category sidebar in Wordpress? 0Reply
D
denism3002020-03-23 16:30:28
How to add your endpoint to breadcrumbs? 1Reply
M
Maxim2017-11-28 22:03:40
Mistake. How to make a migration in yii2? 5Reply
K
Kulver_stukas2017-12-12 11:18:01
What is the simplest, most reliable and cheapest way to control the filling of the tank? 5Reply
T
TheTalion2017-10-01 19:21:52
Why is unsafe code unsafe and rarely used in C#? 5Reply

Didn't find what you were looking for?

Ask your question

Ask a Question

731 491 924 answers to any question