大约有 10,900 项符合查询结果（耗时：0.0489秒） [XML]
How is std::function implemented?
...ally implemented by the compiler creating a class with overloaded function call operator and the referenced variables as members. This suggests that the size of lambda expressions varies, and given enough references variables that size can be arbitrarily large .
...
ASP.NET Identity DbContext confusion
...use a single Context class inheriting from IdentityDbContext.
This way you can have the context be aware of any relations between your classes and the IdentityUser and Roles of the IdentityDbContext.
There is very little overhead in the IdentityDbContext, it is basically a regular DbContext with two...
What do 'statically linked' and 'dynamically linked' mean?
I often hear the terms 'statically linked' and 'dynamically linked', often in reference to code written in C , C++ or C# . What are they, what exactly are they talking about, and what are they linking?
...
What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...is stored unboxed. Functions written with the Repa combinators are automatically parallel provided you supply +RTS -Nwhatever on the command line when running the program.
Recently, it has been used for some image processing problems:
Real time edge detection
Efficient Parallel Stencil Convolut...
Why do access tokens expire?
...d a short lived "access token". Now every time the access token expires, I can POST my refresh token to Google and they will give me a new access token.
...
Why do I have to access template base class members through the this pointer?
...template parameter. Others are deferred until the parameter is known. It's called two-phase compilation, and MSVC doesn't do it but it's required by the standard and implemented by the other major compilers. If you like, the compiler must compile the template as soon as it sees it (to some kind of i...
When should I mock?
...s within tests.
A mock replaces that dependency. You set expectations on calls to the dependent object, set the exact return values it should give you to perform the test you want, and/or what exceptions to throw so that you can test your exception handling code. In this way you can test the unit...
Reduce, fold or scan (Left/Right)?
When should I use reduceLeft , reduceRight , foldLeft , foldRight , scanLeft or scanRight ?
3 Answers
...
List of Big-O for PHP functions
...ible implementations of a function that finds if a number is prime using a cached array of primes.
4 Answers
...
How to integrate nodeJS + Socket.IO and PHP?
I have recently been looking around, to find a good way to communicate between nodeJS and PHP. Here is the idea : nodeJS is still quite new, and it can be kind of tricky to develop a full application only with it. Moreover, you may need it only for one module of your project, like realtime notificat...