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Structure padding and packing
... know mostly used in transmitting(i.e networking) a data, when you need to cast a byte array to a struct, and be sure that an array fit to a struct fields. If the spark can not do that, how those working at all?!
– Hi-Angel
May 24 '14 at 9:19
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Calling C++ class methods via a function pointer
...he parameter is normally LPARAM or similar rather than a pointer, and some casting is needed.
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...t when you want a property, you ask for it - you don't have to parse,guess,cast. I did not understand your point about "what happens when objects don't have compatible methods" - Could you say that another way or give an example of the problem? Thanks.
– Jeffrey Snover - MSFT
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Sort a Map by values
... any more (stackoverflow.com/questions/109383/…). Also, why was there a cast to Double? Shouldn't it just be return ((Comparable)base.get(a).compareTo(((Comparable)base.get(b)))?
– Stephen
Aug 11 '10 at 21:50
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When to use symbols instead of strings in Ruby?
...Printing the symbols will be slower than printing strings because they are cast to strings.
Having lots of different symbols will increase the overall memory usage of your application since they are never deallocated. And you are never using all strings from your code at the same time.
Use case b...
Is there more to an interface than having the correct methods
...o kinds of error below at compile-time:
// Compiler error: Corn cannot be cast to Animal.
Animal farmObject = new Corn();
farmObject makeNoise();
--
// Compiler error: Animal doesn't have the harvest message.
Animal farmObject = new Cow();
farmObject.harvest();
So....to summarize:
Interfa...
How to retrieve form values from HTTPPOST, dictionary or?
...e" (name is as you like but keep it consistent) and try to build it up and cast it to MyModel.
[HttpPost]
public ActionResult PostBack(HomeModel variableName){
postBack.HouseNumber; //The value user entered
postBack.StreetAddress; //the default value of NULL.
}
When a controller is expec...
What's the difference between window.location= and window.location.replace()?
...f = "#/some/spa/route". Besides, many language would allow (implicit) type cast in some way. At the end of day, javascript is a dynamic typed language, put type concepts on it and say it's not good makes no point afaict.
– apple apple
May 6 '19 at 9:15
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Accessing Object Memory Address
...you can just call PyFoo_Check to make sure it really is a Foo object, then cast with (PyFoo *)p. So, if you're writing a C extension, the id is exactly what you need.
What if you're writing pure Python code? You can call the exact same functions with pythonapi from ctypes.
Finally, a few of the ...
Is it safe to delete a void pointer?
...e of the original pointer. The only way to restore an object pointer is to cast the void pointer back to an object pointer (which requires the author to know what the pointer means). void itself is an incomplete type and thus never the type of an object, and a void pointer can never be used to ident...