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Is multiplication and division using shift operators in C actually faster?
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Eric LippertEric Lippert
599k164164 gold badges11551155 silver badges20142014 bronze badges
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Is std::vector so much slower than plain arrays?
...;g = 0;
j->b = 0;
}
Result:
# ./vector
UseArray completed in 3.264 seconds
UseVector completed in 5.443 seconds
Nope, no different. At least it's not slower. I thought this would have performance similar to #2 where I used a Pixel& reference.
Conclusion
Even if some smart cookie f...
Logging best practices [closed]
...erheads).
Areas you might want to look at extending (if needed):
Database trace listener
Colored console trace listener
MSMQ / Email / WMI trace listeners (if needed)
Implement a FileSystemWatcher to call Trace.Refresh for dynamic configuration changes
Other Recommendations:
Use structed ...
数据存储组件 · App Inventor 2 中文网
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https://tinywebdb.cn/ 经测试，单个键值的容量大小约为 64KB 字节，超过则会保存失败。
https://tinywebdb.appinventor.space/ 经测试，单个键值的容量大小约为 9000 字节（9KB），超过则会保存失败。
更多请参考《App Inventor 2 网络微数...
how to listen to N channels? (dynamic select statement)
...more idiomatic, straight-forward, and readable.
Performance. On my Xeon amd64 system the goroutines+channels out performs the reflect solution by about two orders of magnitude (in general reflection in Go is often slower and should only be used when absolutely required). Of course, if there is any s...
How does Access-Control-Allow-Origin header work?
...quest headers
Host DomainB.com
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8,application/json
Accept-Language en-us;
Accept-Encoding gzip, deflate
Keep-Alive 115
Origin http://DomainA.com
D...
Printing 1 to 1000 without loop or conditionals
...5\n46\n47\n48\n49\n50\n51\n52\n53\n54\n55\n56\n57\n58\n59\n60\n61\n62\n63\n64\n65\n66\n67\n68\n69\n70\n71\n72\n73\n74\n75\n76\n77\n78\n79\n80\n81\n82\n83\n84\n85\n86\n87\n88\n89\n90\n91\n92\n93\n94\n95\n96\n97\n98\n99\n100\n101\n102\n103\n104\n105\n106\n107\n108\n109\n110\n111\n112\n113\n114\n115\n1...
What is a CSRF token ? What is its importance and how does it work?
...www.mybank.com/transfer?to=123456;amount=10000;token=31415926535897932384626433832795028841971.
That token is a huge, impossible-to-guess random number that mybank.com will include on their own web page when they serve it to you. It is different each time they serve any page to anybody.
The attacke...
Node.js vs .Net performance
...:
Dell Latitude E6510, Core i5 (dual core), 8 GB RAM, Windows 7 Enterprise 64 bit OS
node server
runs at http://localhost:9090/
/// <reference path="node-vsdoc.js" />
var http = require("http");
http.createServer(function (request, response) {
response.writeHead(200, { "Content-Type": "text/...
Why is “while ( !feof (file) )” always wrong?
...
64
No it's not always wrong. If your loop condition is "while we haven't tried to read past end of...