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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 do I convert NSMutableArray to NSArray?
...
However, casting to (NSArray *) still allows a cast back up to (NSMutable *). Ain't that the case?
– sharvey
Nov 20 '10 at 2:22
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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 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...
AddRange to a Collection
...
Try casting to List in the extension method before running the loop. That way you can take advantage of the performance of List.AddRange.
public static void AddRange<T>(this ICollection<T> destination,
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How to get the full path of running process?
...uery = from p in Process.GetProcesses()
join mo in results.Cast<ManagementObject>()
on p.Id equals (int)(uint)mo["ProcessId"]
select new
{
Process = p,
Path = (string)mo["ExecutablePath"],
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Convert a PHP object to an associative array
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Just typecast it
$array = (array) $yourObject;
From Arrays:
If an object is converted to an array, the result is an array whose elements are the object's properties. The keys are the member variable names, with a few notable ex...
What is the difference between == and Equals() for primitives in C#?
...t, so you aren't calling it.
You could force it to call this method with a cast:
Console.WriteLine(newAge.Equals((short)age)); // true
This will call short.Equals(short) directly, without boxing. If age is larger than 32767, it will throw an overflow exception.
You could also call the short.Equals(...
How to properly compare two Integers in Java?
...egers, use .equals, if you want to make your inequalities clear, write the cast in explicitly: if ((int)c < (int)d) ... ; You can also do: c.compareTo(d) < 0 // === c < d
– Adam Lewis
Oct 3 '09 at 22:40
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When should I use the Visitor Design Pattern? [closed]
...t to the methods. I would prefer a simple performTask(Object *obj) and you cast this object in the Operation class. (and in language supporting overriding, no need for casting)
– Abdalrahman Shatou
Dec 6 '13 at 18:01
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