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Unpacking, extended unpacking and nested extended unpacking

...the length of this post, but I decided to opt for completeness. Once you know a few basic rules, it's not hard to generalize them. I'll do my best to explain with a few examples. Since you're talking about evaluating these "by hand," I'll suggest some simple substitution rules. Basically, you might...
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How to write a large buffer into a binary file in C++, fast?

...es 2-5%. Thanks a lot to everyone. Update: 5 years have passed it's 2017 now. Compilers, hardware, libraries and my requirements have changed. That's why I made some changes to the code and did some new measurements. First up the code: #include <fstream> #include <chrono> #include &l...
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ADB Android Device Unauthorized

...k if you are agree to connect the computer id. You need to confirm it. 5. Now Check the device It is now authorized! adb devices <ANDROID_SDK_HOME>\platform-tools>adb devices List of devices attached 4df798d76f98cf6d device ...
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How can I change my Cygwin home folder after installation?

...PROFILE% Click OK in all the open dialog boxes to apply this new setting Now we are going to update the Cygwin /etc/passwd file with the Windows %HOME% variable we just created. Shell logins and remote logins via ssh will rely on /etc/passwd to tell them the location of the user's $HOME path. At ...
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What's the difference between `on` and `live` or `bind`?

... on() method, further indicating that you should ignore these methods from now on and just use on: bind: function( types, data, fn ) { return this.on( types, null, data, fn ); }, live: function( types, data, fn ) { jQuery( this.context ).on( types, this.selector, data, fn ); return thi...
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How to apply specific CSS rules to Chrome only?

...https://jeffclayton.wordpress.com/2015/08/10/1279/ /* Chrome, Safari, AND NOW ALSO the Edge Browser and Firefox */ @media and (-webkit-min-device-pixel-ratio:0) { div{top:10;} } /* Chrome 29+ */ @media screen and (-webkit-min-device-pixel-ratio:0) and (min-resolution:.001dpcm) { div{top:0...
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How big can a user agent string get?

... I'm less concerned with server limits since I am on IIS, I know it won't ever be bigger then their limit which is still preety large if memory serves.... – JoshBerke Mar 17 '09 at 18:42 ...
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How can I get the count of milliseconds since midnight for the current?

... current time as a number of milliseconds (not count from epoch). Instant.now() // Get current moment in UTC, then… .get( ChronoField.MILLI_OF_SECOND ) // interrogate a `TemporalField`. 2017-04-25T03:01:14.113Z → 113 Get the fractional second in nan...
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Rails: FATAL - Peer authentication failed for user (PG::Error)

...s=# create database "dcaclab_development" owner "guy_on_stackoverflow"; Now update your database.yml file after you've confirmed creating the database, user, password and set these privileges. Don't forget host: localhost. ...
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What is std::string::c_str() lifetime?

...use the strings are not modified while in that scope. (However, we don't know what use_foo() or ~Foo() might be doing with those values; if they copy the strings elsewhere, then they should do a true copy, and not just copy the char pointers.) ...