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When does invoking a member function on a null instance result in undefined behavior?
...ean to "use" the lvalue? Just even generate it at all, or to use it in the more formal sense of perform lvalue-to-rvalue conversion?
Regardless, it definitely cannot be converted to an rvalue (§4.1/1):
If the object to which the lvalue refers is not an object of type T and is not an object of ...
Why aren't pointers initialized with NULL by default?
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remove objects from array by object property
... Or if you get confused by the tilde on last line, you might find this more clear: (removeIndex >= 0) && array.splice(removeIndex, 1);
– wojjas
Oct 11 '16 at 10:42
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Execution time of C program
...C;
Note that this returns the time as a floating point type. This can be more precise than a second (e.g. you measure 4.52 seconds). Precision depends on the architecture; on modern systems you easily get 10ms or lower, but on older Windows machines (from the Win98 era) it was closer to 60ms.
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Use LINQ to get items in one List, that are not in another List
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An alternate way of expressing this via LINQ, which some developers find more readable:
var result = peopleList2.Where(p => peopleList1.All(p2 => p2.ID != p.ID));
Warning: As noted in the comments, these approaches mandate an O(n*m) operation. That may be fine, but could introduce perf...
Is REST DELETE really idempotent?
...does not affect the core concept of idempotency - you can send the request more than once without additional changes to the state of the server.
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Change date format in a Java string
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if it's 4 letters or more, then the full form is used. so you can use 4 times m or even 5 times m its same
– Dev
Dec 12 '14 at 9:03
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How to ignore certain files in Git
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JavaScript by reference vs. by value [duplicate]
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How do I make a placeholder for a 'select' box?
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