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Is null reference possible?

...ingleton object that represents NULL within the class as follows and add a cast-to-pointer operator that returns nullptr ? Edit: Corrected several mistypes and added if-statement in main() to test for the cast-to-pointer operator actually working (which I forgot to.. my bad) - March 10 2015 - // E...
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Set value to NULL in MySQL

... ... assuming that you don't cast $mycolupdate to string at a later stage. – Álvaro González Oct 7 '13 at 16:27 add a comment ...
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using statement with multiple variables [duplicate]

... Then declare the variables as IDisposable and cast later? – Robert Jørgensgaard Engdahl May 7 '15 at 8:17 ...
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What exactly is a C pointer if not a memory address?

... address, they do not just mean that you can coerce data into a pointer by casting an integer into a pointer. They mean the compiler might be using something other than memory addresses to implement pointers. On the Alpha processor with DEC’s ABI, a function pointer was not the address of the func...
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How can I get a count of the total number of digits in a number?

...ointed out in the comment section, the LOG10 method had to be fixed with a casting to double inside Math.Abs() for the case when the input value is int.MinValue or long.MinValue. Regarding the early performance tests I've implemented before editing this question (it had to be edited a million times...
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C++ unordered_map using a custom class type as the key

...cpp file but I am getting the following error: Error 57 error C2440: 'type cast' : cannot convert from 'const Key' to 'size_t' c:\program files (x86)\microsoft visual studio 10.0\vc\include\xfunctional. I am guessing that the compiler is not finding my hash method? Should I be adding anything to m...
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Does static constexpr variable inside a function make sense?

... @AndrewLazarus, you can't cast away const from a const object, only from a const X* which points to an X. But that's not the point; the point is that automatic objects cannot have static addresses. As I said, constexpr ceases to be meaningful once the...
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Creating NSData from NSString in Swift

... In Swift2, there's no need to use "as" cast since it's automatically bridged – LiangWang Jun 18 '15 at 1:51 ...
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Add a new item to a dictionary in Python [duplicate]

... For Python 3, a quick fix to still use @Pakman comment is to cast the output of dict.items() in a list as follows: dict(list(default_data.items()) + list({'item3': 3}.items())), or even use the more idomatic: {**default_data, **{'item3': 3}} – H. Rev. ...
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How to count the number of set bits in a 32-bit integer?

...entation-defined for negative values. The argument needs to be changed (or cast) to unsigned, and since the code is 32-bit-specific, it should probably be using uint32_t. – R.. GitHub STOP HELPING ICE May 14 '11 at 21:55 ...