Tagged Questions
0
votes
2answers
45 views
Personnal implementation of Java events in Slick2D
I'm making my own windowing system in Java with Slick2D right now and I want to add buttons to my windows! The thing is that I have no knowledge on events or such things... Everywhere I look it's ...
5
votes
3answers
237 views
Is there an idiomatic way to create a collection of delegates in C++?
I want to store functions with similar signature in a collection to do something like this:
f(vector<Order>& orders, vector<Function>& functions) {
foreach(process_orders in ...
2
votes
1answer
133 views
Implementing function delegates in C with unions and function pointers
I'd like to be able to generically pass a function to a function in C. I've used C for a few years, and I'm aware of the barriers to implementing proper closures and higher-order functions. It's ...
0
votes
0answers
131 views
How to use call backs in C++ like delegates in C#? [duplicate]
Possible Duplicate:
What is a C++ delegate?
I need to use a callback in C++ like delegates in C#. For example, in C# we have:
...
public delegate void SomeWorkhandeler(object Arg);
...
...
3
votes
3answers
470 views
Emulating delegates with free generic type parameters in C#
This is a hard question about language design, patterns and semantics. Please, don't down-vote just because you don't see the practical value.
First, let's think about functions and their parameters. ...
3
votes
2answers
134 views
Why is c++ template argument deduction failing in this case?
I am trying to write my own delegate system as a replacement for boost::functions since the latter does a lot of heap-allocations which I profiled to be problematic.
I have written this as a ...
2
votes
2answers
651 views
Using std::function as a delegate in C++11
Say I have these 3 different functions that I may want to point to:
float test1(int a, int b) {
return 7.0f;
}
struct TestClass {
float test2(int a, int b) {
return 5.0f;
}
};
...
0
votes
0answers
184 views
Convert Member Function Pointer to IntPtr
I want to Use a Managed Delegate in a Native Class.
It seems I should using Marshal::GetDelegateForFunctionPointer.
I write my function pointer as is:
typedef void (CMYClass::*FUNCP)(int i);
then
...
3
votes
3answers
128 views
Why the delegates or the closures are often referred as true “object-oriented function pointers” ? - about C++
For example, considering the C#
Unlike function pointers in C or C++, delegates are object-oriented,
type-safe, and secure.
source:
...
0
votes
2answers
302 views
C: Example of unsafe of function pointer compare to delegate of C#
When I learn delegate of C#, my book said that delegate same with function pointer in C, but more safer. After I read that line, I think : Ah, so C Compiler will not check prototype where the function ...
2
votes
1answer
108 views
Calling C++ DLLs from C# ESP value
So I have a DLL that I made with C++ and I am using it in C#. The problem is that I use a function pointer in C++, so I made a delegate. The hole program works but after it finishes I got a message ...
1
vote
4answers
155 views
How to create C# delegate double callable like this `f(a + k * h)`?
I have created a public delegate double DynamicFunc(double x);
and now I try to create an instance of it to pass into a component later
private DynamicFunc f(double x)
{
return ...
-1
votes
5answers
120 views
Which one of these approaches would yield the fastest runtime? [closed]
I am in the midst of a short thought experiment and would love some assistance.
Consider a class that calculates some output according to a function that itself can be changed, but can only be ...
3
votes
1answer
389 views
window.external.notify passing data other than string
I am trying to write a windows phone app and I want to invoke a delegate when a user wants performs an action. But the problem is the action has to be performed in the webpage and the event has to be ...
1
vote
3answers
164 views
c++, perform function on every array member
i have a question regaring c++ and arrays.
let say i have a class which is called CustomArray, and is nothing more than an generic array wich has attributes for size and capacity, to make the array ...
