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When does invoking a member function on a null instance result in undefined behavior?

...results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.) However, one can try to deduced it from §3.10/2: An lvalue refers to an object or function. When dereferencing, the result is an lvalue. A null pointe...
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How do I run multiple instances of Android Studio

... | edited Oct 25 '18 at 11:22 Wrigglenite 11766 bronze badges answered Aug 18 '13 at 19:20 ...
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What is the fundamental difference between WebSockets and pure TCP?

... connections. Usually they will have only a few standard ones such as port 80 for HTTP or 443 for HTTPS. So, to communicate with the server you are obliged to connect using one of those ports. Given that these are standard ports for web servers that generally speak HTTP, you're therefore obliged to...
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Using psql how do I list extensions installed in a database?

... 388 In psql that would be \dx See the manual for details: http://www.postgresql.org/docs/current...
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Difference between using Throwable and Exception in a try catch

... | edited Feb 6 '18 at 8:29 Maurice Perry 7,19222 gold badges77 silver badges1919 bronze badges ...
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How to escape a JSON string to have it in a URL?

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Reopen last closed tab in Visual Studio

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Automating “enter” keypresses for bash script generating ssh keys

... 218 Try: ssh-keygen -t rsa -N "" -f my.key -N "" tells it to use an empty passphrase (the same as...
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What is the default access specifier in Java?

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Accessing bash command line args $@ vs $*

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