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How does Python manage int and long?
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Comment by Ted : As mentioned below beware that casting something to int that is larger than maxint will still result in a long >>>type(int(sys.maxint+1)) <type 'long'>
– StuartLC
Oct 25 '12 at 9:51
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How to generate a random number in C++?
...is intuition it is
only natural to search the web for some magic spells to cast to get
such random number in any possible context.
^^^ THAT kind of intuitive expectations IS VERY WRONG and harmful in all cases involving Pseudo-Random Number Generators - despite being reasonable for true random numb...
How do you bind an Enum to a DropDownList control in ASP.NET?
...l.DropDownListFor(o => o.EnumProperty, Enum.GetValues(typeof(enumtype)).Cast<enumtype>().Select(x => new SelectListItem { Text = x.ToString(), Value = ((int)x).ToString() }))
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im...
C read file line by line
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Why the cast (FILE*) fp ? Isn't fp is already a FILE * and also fopen() returns a FILE * ?
– Accountant م
Apr 4 '19 at 23:25
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Should I store entire objects, or pointers to objects in containers?
...class pointers, and to handle all the collateral damage in object storage, casting, and so on. It took me a couple of months to convince myself that the new code was working. Incidentally, this made me think hard about how well-designed C++'s object model is.
On my current big project, my central d...
Android OnClickListener - identify a button
...s not correct. View is not a Button, but Button is a View. Though, you can cast a View to a Button. Keep in mind that the second way to do it is not recommended... maybe that v may not be a Button, which will generate a cast exception.
– Cristian
Jul 23 '10 at ...
How to use GROUP BY to concatenate strings in SQL Server?
...LUES (2,'C',9)
SELECT
[ID],
STUFF((
SELECT ', ' + [Name] + ':' + CAST([Value] AS VARCHAR(MAX))
FROM #YourTable
WHERE (ID = Results.ID)
FOR XML PATH(''),TYPE).value('(./text())[1]','VARCHAR(MAX)')
,1,2,'') AS NameValues
FROM #YourTable Results
GROUP BY ID
DROP TABLE #YourT...
Clojure 1.2.1/1.3/1.4 'proxy generated in Grails 2.0.0 runtime fails. 1.2.0 is fine
... an Issue called CLJ-944 on clojure.org. There you can find a fix for ClassCastException: clojure.lang.PersistentArrayMap cannot be cast to java.lang.Class issue
The problem is:
that the compiler injects an incorrect cast to
clojure.lang.PersistentHashMap. In this case it should probably be
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Array.Copy vs Buffer.BlockCopy
...Copy() can perform very poorly here due to the continual "safe" value type casting, compared to the direct casting of Buffer.BlockCopy().
Additional evidence from outside StackOverflow that Array.Copy() is faster than Buffer.BlockCopy() for same-type array copying can be found here.
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How to get current time in milliseconds in PHP?
... decimals
1409263371904
Note that both $mt[1] and the result of round are casted to int. This is necessary because they are floats and the operation on them without casting would result in the function returning a float.
Finally, that function is slightly more precise than
round(microtime(true)*100...