Tagged Questions

Casting is a process where an object type is explicitly converted into another type if the conversion is allowed.

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-1
votes
1answer
21 views

return makes pointer from integer without a cast - but types are okay?

Just some code. In one file and its header: // header: extern char * thessc_config_member_get_config_key(struct config_member_t *m); // implementation: inline char * ...
1
vote
1answer
29 views

Go: cast slice of primitive to a slice of its alias

I'm trying to do something along these lines: package main ...
0
votes
4answers
77 views

C pointer and type conversation

Need some help with type conversation with string pointers in C. I have a function that gets the the *argv from main loop to pass command-line parameters to it. Since the parameters are fixed, I am ...
1
vote
3answers
44 views

scala.Some cannot be cast to java.lang.String

In this application, I'm getting this error: scala.Some cannot be cast to java.lang.String When trying this: x.email.asInstanceOf[String] x.email is an Option[String] Edit: I understand that ...
1
vote
3answers
62 views

Why cant i cast an Action<Int32> to Action<Object>?

I have several places where i have Action<Int32>, Action<Boolean>, Action<SomeClassName> being used, but when it comes to passing the action as an argument in a class method, i ...
0
votes
0answers
40 views

C casting sockaddr into sockaddr_in

for some reasons my pointer needs to point sockaddr not sockaddr_in , how can i cast these two structures in order to use sin_family , sin_pot and sin_addr with the sockaddr pointer ? here 's my code ...
0
votes
0answers
67 views

How to convert an int pointer to the reference of an int array

I just come across the following problem: void func( int (&arr)[3] ){...} int main( int argc, char* argv[] ) { int* a = new int[3]; a[0]=0, a[1]=1, a[2]=2; f(a);// how to convert a ...
0
votes
1answer
12 views

Ray Casting a transparent PNG in Java with LWJGL

Im making a game and id like to implement raycasting for the hero's laser (and other stuff in the future), i have my sprites in a sprite sheet which i bind in the beggining and access when i draw ...
2
votes
5answers
89 views

How to make int from char[4]? (in C)

I have char a[4] and in it: a[0] = 0x76 a[1] = 0x58 a[2] = 0x02 a[3] = 0x00 And I want print it as int, can you tell me how to do that?
1
vote
4answers
36 views

SQL Cast/Convert Issue

This is more like a help from experts than a question. I need to declare a variable called BillingYear which I can assign it to a year. The problem is: I do not know which data type it should be! I ...
1
vote
5answers
57 views

Forced necessity of dynamic_cast operator in C++

dynamic_cast is generally used when we have a base class pointer and want to downcast it to a derived class. For instance, class A { public: virtual void foo(); }; class B : public A { ...
5
votes
1answer
54 views

Why does implicit casting work while reflection casting throws exception?

Suppose there is the following code: @SuppressWarnings("unchecked") public static <T> T implicitCaster(Class<T> cls, Object o) { return (T) o; } public static <T> T ...
2
votes
4answers
33 views

Why is this boolean casting not working as expected?

I've just answered this question but I don't understand why it works the way it does. Basically the problem can be simplified to this: var b = new Boolean(false); console.info(b == false); // Prints ...
0
votes
0answers
13 views

Checkbox bind does not work for insert radgrid template

Hallo I have a problem. I made a telerik radgrid. I have a FormTemplate where i have a custom form to insert new items. The item has a couple of properties. On of them is a string and one of them is ...
1
vote
0answers
13 views

PHP: locale-dependent float to string cast

I'm sitting on a machine with en_US locale and this piece of PHP code setlocale(LC_ALL,'de_DE.utf8'); var_dump((string)1.234); returns string(5) "1.234" whereas on my colleague's machine which ...

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