 How to get this working example example of delegates to pass lambda syntax as a parameter?
By : sekigoo
Date : March 29 2020, 07:55 AM
hop of those help? I'm trying to make my own understandable example of what the method RelayCommand is doing in the following code: , Well, you could do: code :
static void Main(string[] args)
{
int[] numbers = { 6, 3, 7, 4, 8 };
Console.WriteLine("The addition result is {0}.",
Tools.ProcessNumbers(p => Tools.AddNumbers(p), numbers));
Console.WriteLine("The multiplication result is {0}.",
Tools.ProcessNumbers(p => Tools.MultiplyNumbers(p), numbers));
Console.ReadLine();
}
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 Looking for a nicer python syntax to pass multiple parameters to a single-parameterized lambda
By : Kyle
Date : March 29 2020, 07:55 AM
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 Lambda syntax to pass and invoke a method reference
By : binnull
Date : March 29 2020, 07:55 AM
This might help you When you want users to use be able to use a lambda syntax all you have to do is take a parameter which is an interface with exactly one abstract function. The callers decide to use a method reference, a lambda with the code :
class EnumRadioButtons<T> {
public EnumRadioButtons(Collection<T> options, Function<T,String> f ) {
for (T option : options) {
this.setTitleOfEachOption(option, f.apply(option));
}
}
public void setTitleOfEachOption(T option, String title) {
System.out.println("DEBUG - Setting title of option: " + option + " to have title of: " + title );
}
}
enum MyEnum {
A,B,C;
public String myToString() {
return toString();
}
}
class User {
public static void main(String[] args) {
EnumRadioButtons<MyEnum> bts
= new EnumRadioButtons<>(Arrays.asList(MyEnum.values()),
MyEnum::myToString); // user of method reference
}
}
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 Syntax to pass block to '[]' ruby method
By : some_user
Date : March 29 2020, 07:55 AM
around this issue [] is a shortcut, and it may not be designed to accept blocks.
Either use a traditional method (which in this case is only 1 char longer):
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 What is the required syntax to pass a block to a pure C function?
By : Wubingston Twelve
Date : October 09 2020, 01:00 AM
should help you out The question has caused some confusion, because blocks (in the question's sense) are not a feature of standard C. Apple added them as an extension to its C and C++ compilers when it added them to Objective C, but they are not a C thing outside the Apple ecosystem. I confess that I've no experience actually using them, but as far as I can tell from the docs, such as these, the syntax was chosen so as to be the same for C, C++, and Objective C. Indeed, some sources claim that details of the syntax were chosen specifically to avoid the possibility of conflict with C++. From a C perspective, accepting a block as a parameter and calling a block received that way are thoroughly analogous to accepting a function pointer and calling the pointed-to function, respectively. Your example C function appears to be correct. code :
void (^myBlock1)(void) ;
myBlock1;
int myInt = 1;
myInt; // specifically, analogous to this
myBlock1();
double someNumber;
someNumber= pureCfunctionWithABlockParameter(0, 1, myBlock1 );
void (^block)(int)
void pass_2(void (^do_something)(int)) {
do_something(2);
}
pass_2(block);
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code :
![Syntax to pass block to '[]' ruby method](/images/pics/236.jpg "Syntax to pass block to '[]' ruby method")
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