requirements

Force a class to override the .equals method

…衆ロ難τιáo~ 提交于 2019-11-26 22:42:46
问题 I have a bunch of class who implement a common interface : Command. And this bunch of class goes to a Map. To get the Map working correctly, I need to each class who implements Command to override the Object.equals(Object other) method. it's fine. But i whould like to force the overriding of equals. => Have a compilation error when something who implement command dont override equals. It's that possible ? Edit : BTW , i will also need to forcing the override of hashcode... 回答1: No, you can't.

C# 7 .NET / CLR / Visual Studio version requirements

孤街醉人 提交于 2019-11-26 22:20:50
问题 What are the minimum .NET framework and CLR version requirements for running C# 7? Also, do I need VS 2017 to compile C# 7? 回答1: You do NOT need to target .NET 4.6 and above, that is incorrect. To use Tuples, you need the System.ValueTuple NuGet package. Right on https://www.nuget.org/packages/System.ValueTuple/ you can see it says it supports 4.5 and above, and actually, it supports 4.0 and above. And if you want to get crazy, if you create your own System.ValueTuple class that does exactly

What is the difference between functional and non functional requirement? [closed]

眉间皱痕 提交于 2019-11-26 14:57:32
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . What is the difference between functional and non-functional requirements in the context of designing a software system? Give examples for each case. 回答1: A functional requirement describes what a software system should do, while non-functional requirements place constraints on

Automatically create requirements.txt

流过昼夜 提交于 2019-11-26 11:45:13
问题 Sometimes I download the python source code from github and don\'t know how to install all the dependencies. If there is no requirements.txt file I have to create it by hands. The question is: Given the python source code directory is it possible to create requirements.txt automatically from the import section? 回答1: If you use virtual environment, pip freeze > requirements.txt just fine. If not, pigar will be a good choice for you. By the way, I do not ensure it will work with 2.6. UPDATE :