On Thu, Nov 03, 2022 at 04:41:14AM +0000, Siarhei Siamashka via
Digitalmars-d-learn wrote:
[...]
> ```D
> @safe:
> import std.stdio;
> class A {
> void foo() { writeln("foo"); }
> }
> void main() {
> auto a1 = new A;
> a1.foo(); // prints "foo"
> A a2;
> a2.foo(); // Segmentation fault
> }
> ```
[...]
D does not have the equivalent of C++'s allocating a class instance on
the stack. In D, all class instances are allocated on the heap and
class variables are references to them. Declaring an instance of A as a
local variable initializes it to the null reference, so invoking a
method on it rightly segfaults.
T
--
Freedom: (n.) Man's self-given right to be enslaved by his own depravity.
