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Returning a C string from a function

...ing like "my string" actually uses 9+1 (=10!) bytes. This is important to know when you finally get around to allocating strings dynamically. So, without this 'terminating zero', you don't have a string. You have an array of characters (also called a buffer) hanging around in memory. Longevity of ...
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How to “EXPIRE” the “HSET” child key in redis?

... this is why redis is such an awesome piece of software. they know where to keep it simple – tObi Jan 4 '19 at 21:25 add a comment  |  ...
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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like... ...
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Should I use px or rem value units in my CSS? [closed]

... TL;DR: use px. The Facts First, it's extremely important to know that per spec, the CSS px unit does not equal one physical display pixel. This has always been true – even in the 1996 CSS 1 spec. CSS defines the reference pixel, which measures the size of a pixel on a 96 dpi displa...
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Is Dvorak typing appropriate for programming? [closed]

... Dvorak already has the huge con that the rest of the world uses qwerty, now if we start using modifications of dvorak too.. It's even worse! :) – Thomas Bonini Dec 18 '09 at 20:49 ...
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How to load assemblies in PowerShell?

...-us/library/12xc5368(v=vs.110).aspx See the note at the top - This API is now obsolete. Of course, that doesn't stop people from using it. – Keith Hill Nov 14 '14 at 15:30 2 ...
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How to implement a ConfigurationSection with a ConfigurationElementCollection

...se "add" the default one but i changed it just for the sake of this post. Now all of our nested Elements have been implemented now we should aggregate all of those in a class which has to implement System.Configuration.ConfigurationSection CustomApplicationConfigSection public class CustomApplica...
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]

...rer :) I didn't realize the efficiency difference - that's very useful to know. Same for the hoisting effect - tricky, indeed. Thanks for such a great answer, I learned a lot from it! – Leo Dec 22 '10 at 11:09 ...
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jQuery Ajax POST example with PHP

... Yes, I understand that now. But I found many examples that always put a $(document).ready block around so that the example is self-contained. I wrote the comment for a future user who may, like me, stumble on this and end-up reading the comment thr...
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How to “properly” create a custom object in JavaScript?

...ype.toString= function() { return 'Shape at '+this.x+', '+this.y; }; Now to subclass it, in as much as you can call what JavaScript does subclassing. We do that by completely replacing that weird magic prototype property: function Circle(x, y, r) { Shape.call(this, x, y); // invoke the ba...