大约有 15,000 项符合查询结果(耗时:0.0314秒) [XML]
How to allocate aligned memory only using the standard library?
...CC has warning options to tell you when you abuse it). Then add 16 to the start pointer. Suppose malloc() returned you an impossibly badly aligned pointer: 0x800001. Adding the 16 gives 0x800011. Now I want to round down to the 16-byte boundary — so I want to reset the last 4 bits to 0. 0x0F h...
MongoDB SELECT COUNT GROUP BY
...
Starting in MongoDB 3.4, you can use the $sortByCount aggregation.
Groups incoming documents based on the value of a specified expression, then computes the count of documents in each distinct group.
https://docs.mongod...
Difference between session affinity and sticky session?
...cing scenario, they are interchangeable. Both mean that once a session is started, the same server serves all requests for that session.
share
|
improve this answer
|
follow...
Convert Month Number to Month Name Function in SQL
...s actually because the date that's being used to seed the dateadd function starts at 1. if we need January's datename, we would be adding 1 month to 2008-01-01, which would give us 2008-02-01, which is February. so we subtract 1 to account for this, and we get January again.
–...
What is the Python 3 equivalent of “python -m SimpleHTTPServer”
... I run tests against Python 2 and 3. For that I wrote a small script which starts a local server independently:
$ python -m $(python -c 'import sys; print("http.server" if sys.version_info[:2] > (2,7) else "SimpleHTTPServer")')
Serving HTTP on 0.0.0.0 port 8000 ...
As an alias:
$ alias serve=...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...
Try
HKLM\SOFTWARE\Microsoft\DevDiv\VC\Servicing\11.0
as a starting point. I will be using this as a check for installing the VC++ 11 (VS 2012) runtime.
share
|
improve this answer
...
Why does calling a function in the Node.js REPL with )( work?
...module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:901:3
Issue submitted #6634.
Reproduced on v0.10.20.
v0.11.7 have this fixed.
$ nvm run 0.11.7
Running node v0.11.7
> function hi() { console.log("Hello, World!"); }
undefined...
Push origin master error on new repository
I just started using git with github. I followed their instructions and ran into errors on the last step. I'm checking in an existing directory that isn't currently source-controlled (project about a week old). Other than that, my use case should be pretty run of the mill.
...
Markdown `native` text alignment
...
I like to start longer README.md files with an "Index" listing. I put this at the end of each section in case readers wanna pop back up to the index <p align="right">[Index](#index)</p> Works great :)
–...
Checking length of dictionary object [duplicate]
...
Thanks..I'm more an OOP guy, but starting to get used to JS more.
– PositiveGuy
Jul 26 '10 at 17:45
...
