Re: Safe cast

[drug via Digitalmars-d-learn]

It's too complex

On 3/6/20 3:45 PM, Виталий Фадеев wrote:
On Friday, 6 March 2020 at 12:35:29 UTC, Виталий Фадеев wrote:
Searching info for object casting with checking class type at runtime.
Like this:

class A
{
    //
}

class B
{
    int bVar;
}


unittest
{
    A a = new A();

    A x = cast( A )a;     // ok
    A x = cast( B )a;     // ok, but unsafe
Here x will be null. You can use `enforce(x !is null);` if you want 
exception.

    A x = safeCast( B )a; // throw exception
    A x = safeCast( A )a; // ok
}