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digitalmars.D.learn - What does nogc do to a class?

reply Jack <jckj33 gmail.com> writes:
Does it allocate the object rather on stack, like auto scope a = 
new A or what?
May 05 2021
next sibling parent reply Mike Parker <aldacron gmail.com> writes:
On Thursday, 6 May 2021 at 01:04:02 UTC, Jack wrote:

 Does it allocate the object rather on stack, like auto scope a 
 = new A or what?


It doesn't do anything to classes. ` nogc` prevents you from any 
action triggers a GC allocation, such as using `new, so you would 
need to allocate from somewhere else (e.g., via `malloc`) for any 
class instances you want to create in a ` nogc` function.
May 05 2021
parent Jack <jckj33 gmail.com> writes:
On Thursday, 6 May 2021 at 02:11:27 UTC, Mike Parker wrote:

 On Thursday, 6 May 2021 at 01:04:02 UTC, Jack wrote:

 Does it allocate the object rather on stack, like auto scope a 
 = new A or what?


 It doesn't do anything to classes. ` nogc` prevents you from 
 any action triggers a GC allocation, such as using `new, so you 
 would need to allocate from somewhere else (e.g., via `malloc`) 
 for any class instances you want to create in a ` nogc` 
 function.


I see, thanks!
May 06 2021
prev sibling parent reply Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:
On Thursday, 6 May 2021 at 01:04:02 UTC, Jack wrote:

 Does it allocate the object rather on stack, like auto scope a 
 = new A or what?


Further note that

     auto scope a = new A;

can be written shorter as

     scope a = new A;
May 06 2021
parent Jack <jckj33 gmail.com> writes:
On Thursday, 6 May 2021 at 22:16:04 UTC, Per Nordlöw wrote:

 On Thursday, 6 May 2021 at 01:04:02 UTC, Jack wrote:

 Does it allocate the object rather on stack, like auto scope a 
 = new A or what?


 Further note that

     auto scope a = new A;

 can be written shorter as

     scope a = new A;


I'll be using that, thanks!
May 08 2021