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What happens when a computer program runs?

...order on some systems (see Billy O'Neal's answer below for more details on Win32). Other systems can be very different. DOS, for instance, ran in real mode, and its memory allocation when running programs looked much differently: +-----------+ top of memory | extended | above the high memory a...
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Regex Pattern to Match, Excluding when… / Except between

...I'm not always a fan of visualizations, but this one does a good job of showing how simple the method is. Each "line" corresponds to a potential match, but only the bottom line is captured into Group 1. Debuggex Demo Perl/PCRE Variation In contrast to the general solution above, there exists a...
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Swift Beta performance: sorting arrays

...ns, that are safe for most code. It can yield significant high-performance wins from the compiler. They all but advocate it. Whether that's wise or not I couldn't say, but from what I can tell it seems reasonable enough to use [-Ofast] in a release if you're not doing high-precision floating point...
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What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?

...This would result in: [assembly: AssemblyVersion("1.0")] If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc. AssemblyFileVersion Used for deployment. You can increase this number for every deployment. It is used by setup programs. U...
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Is MATLAB OOP slow or am I doing something wrong?

...d methods. Here are some typical results. >> call_nops Computer: PCWIN Release: 2009b Calling each function/method 100000 times nop() function: 0.02261 sec 0.23 usec per call nop1-5() functions: 0.02182 sec 0.22 usec per call nop() subfunction: ...
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Do you (really) write exception safe code? [closed]

...vert back to C and avoid C++ libraries, as well as external surprises like Windows SEH). Writing exception safe code To write exception safe code, you must know first what level of exception safety each instruction you write is. For example, a new can throw an exception, but assigning a built-in (e....
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Favicons - Best practices

...e various iOS devices screen resolutions, then there was the tile icon for Windows... Some answers here are very comprehensive - and overwhelming (all this, only for a favicon?). Yet, they fail at indicating that the 310x310 tile icon for Windows is recommended to be 558x558. And since they were wr...
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How to get client's IP address using JavaScript?

...com ip=54.193.27.106 ts=1575967108.245 visit_scheme=https uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36 Hypothesis-Via colo=SJC http=http/1.1 loc=US tls=TLSv1.3 sni=plaintext warp=off Limitations: Returns plain text DB-IP ...
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Is Unit Testing worth the effort? [closed]

...nagement of that, you gain credibility and perhaps have a better chance of winning them over. share edited Jan 5 '15 at 18:05 ...
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Node.js vs .Net performance

... have any hard numbers to prove one way or another, but I think node would win the LOAD competition for the typical web app. A highly optimized (100% async) .NET app might give the equivalent node.js app a run for it's money, but if you took an average of all the .NET and all the node apps out there...