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What does && mean in void *p = &&abc;

...id *p = &&abc; . What is the significance of && here? I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ? ...
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How to get my IP address programmatically on iOS/macOS?

...ay 16, 2014 (bug pointed out by lhunath, see comments). Loopback addresses now returned, but its easy for you to uncomment the test to exclude them yourself. EDIT2: (by some unknown person): Improved further March 13, 2015: In case the user uses a VPN (regardless over WiFi or Cellular), the previou...
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Why is it a bad practice to return generated HTML instead of JSON? Or is it?

...r any other similar framework. I've used this approach many times and till now and found the performance satisfactory. 14 A...
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Understanding the Gemfile.lock file

...ck in the application together with the Gemfile and Gemfile.lock snapshot. Now, your repository has a record of the exact versions of all of the gems that you used the last time you know for sure that the application worked... This is important: the Gemfile.lock makes your application a single packa...
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How to write a JSON file in C#?

...nd a couple of key places where object allocations could be reduced...... (now) Json.Net (6.0) allocates 8 times less memory than JavaScriptSerializer ‡ Update since .Net Core 3.0 A new kid on the block since writing this is System.Text.Json which has been added to .Net Core 3.0. Microsoft mak...
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jQuery append() - return appended elements

...et) (note the "To" bit) to add that it to the end of #mydiv. Because you now start with $(newHtml) the end result of appendTo('#myDiv') is that new bit of html, and the .effects(...) call will be on that new bit of html too. ...
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Why fragments, and when to use fragments instead of activities?

... updated question . it now has links to the videos of google. also, thanks for the explanation, but i still need clarification about my question. – android developer May 7 '12 at 11:04 ...
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How can I tell if a DOM element is visible in the current viewport?

...eed to support version of Internet Explorer before 7. Original solution (now outdated): This will check if the element is entirely visible in the current viewport: function elementInViewport(el) { var top = el.offsetTop; var left = el.offsetLeft; var width = el.offsetWidth; var height = ...
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How to convert a Git shallow clone to a full clone?

... EDIT: git fetch --unshallow now is an option (thanks Jack O'Connor). You can run git fetch --depth=1000000 (assuming the repository has less than one million commits). share ...
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R programming: How do I get Euler's number?

... The fact that 25000 people have visited this page without complaint until now suggests to me that many people read "Euler's constant" to mean e, and if you change the title, future searchers will fail to find this page. Also, glancing at wikipedia, it seems this reading of "Euler's constant" is qui...