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

...pointer 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 nul...
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SQLAlchemy: Creating vs. Reusing a Session

... NorthCat 7,6991616 gold badges3838 silver badges4444 bronze badges answered Aug 31 '12 at 23:45 zzzeekzzzeek 58k1818 gold badg...
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Why does casting int to invalid enum value NOT throw exception?

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Override devise registrations controller

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What's “requestCode” used for on PendingIntent?

... answered Feb 3 '14 at 12:04 Minhaj ArfinMinhaj Arfin 83188 silver badges88 bronze badges ...
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Is it possible to reference one CSS rule within another?

...graph of this answer. – Quentin Feb 4 '17 at 0:50 You can also declare a rule-set for elements that have two classes o...
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Using the field of an object as a generic Dictionary key

... answered Mar 11 '09 at 14:49 Marc Gravell♦Marc Gravell 888k227227 gold badges23562356 silver badges27202720 bronze badges ...
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What does CultureInfo.InvariantCulture mean?

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Is it possible to make relative link to image in a markdown file in a gist?

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Are there other whitespace codes like &nbsp for half-spaces, em-spaces, en-spaces etc useful in HTML

...space :   (no character reference available) en space :   or   em space :   or   3-per-em space :   or   4-per-em space :   or   6-per-em space :   (no character reference available) figure space : &...