unary_delegate_noreturn (STL/CLR)

Article
12/18/2017

The latest version of this topic can be found at unary_delegate_noreturn (STL/CLR).

The genereic class describes a one-argument delegate that returns void. You use it specify a delegate in terms of its argument type.

Syntax

generic<typename Arg>  
    delegate void unary_delegate_noreturn(Arg);

Parameters

Arg
The type of the argument.

Remarks

The genereic delegate describes a one-argument function that returns void.

Note that for:

unary_delegare_noreturn<int> Fun1;

unary_delegare_noreturn<int> Fun2;

the types Fun1 and Fun2 are synonyms, while for:

delegate void Fun1(int);

delegate void Fun2(int);

they are not the same type.

Example

// cliext_unary_delegate_noreturn.cpp   
// compile with: /clr   
#include <cliext/functional>   
  
void hash_val(wchar_t val)   
    {   
    System::Console::WriteLine("hash({0}) = {1}",   
       val, (val * 17 + 31) % 67);   
    }   
  
typedef cliext::unary_delegate_noreturn<wchar_t> Mydelegate;   
int main()   
    {   
    Mydelegate^ myhash = gcnew Mydelegate(&hash_val);   
  
    myhash(L'a');   
    myhash(L'b');   
    return (0);   
    }

hash
(a) = 5  
hash
(b) = 22

Requirements

Header: <cliext/functional>

Namespace: cliext