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How are virtual functions and vtable implemented?
... virtual table for a class irrespective of the number of virtual functions it contains. This virtual table in turn contains the base addresses of one or more virtual functions of the class. At the time when a virtual function is called on an object, the vptr of that object provides the base address ...
How does JavaScript .prototype work?
I'm not that into dynamic programming languages but I've written my fair share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works?
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Is there something like RStudio for Python? [closed]
In RStudio, you can run parts of code in the code editing window, and the results appear in the console.
10 Answers
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Learn C first before learning Objective-C [closed]
Being an aspiring Apple developer, I want to get the opinions of the community if it is better to learn C first before moving into Objective-C and ultimately the Cocoa Framework?
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How to escape special characters in building a JSON string?
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If you have to use special character in your JSON string, you can escape it using \ character.
See this list of special character used in JSON :
\b Backspace (ascii code 08)
\f Form feed (ascii code 0C)
\n New line
\r Carriage return
\t Tab
\" Double quote
\\ Backslash character
Howev...
Quickly create large file on a Windows system
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edited Oct 20 '17 at 6:32
ivan_pozdeev
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Sell me on const correctness
So why exactly is it that it's always recommended to use const as often as possible? It seems to me that using const can be more of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that ...
Check if an apt-get package is installed and then install it if it's not on Linux
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edited Aug 19 '09 at 6:39
answered Aug 19 '09 at 6:27
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Find size of an array in Perl
...n an array, and of the first character in a substring" (perldoc perlvar). It's set to 0 by default, and setting it to anything other than 0 is highly discouraged.
– Keith Thompson
Sep 13 '11 at 18:52
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When is the finalize() method called in Java?
... finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing?
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