how use * in D just like C++
Jakob Ovrum via Digitalmars-d
digitalmars-d at puremagic.com
Mon Oct 26 23:14:08 PDT 2015
On Tuesday, 27 October 2015 at 05:36:58 UTC, liumao wrote:
> for example
> class A;
> {
> void doSomething() {}
> }
>
> A *a = cast(A *) new A;
>
> then I call a.doSomething(); my program "Segmentation fault"
>
>
>
> how could it happened? and how i use it correctly?
>
>
> 3q, please tell me, 3q 3q 3q!!!!!
`A` on its own is already a reference type. `A*` is a pointer to
a class reference, i.e. a pointer to a pointer, like `A**` in C++.
http://wiki.dlang.org/Coming_From/C_Plus_Plus#Slicing_problem
Please use D.learn for questions like this in the future.
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