Hi, I'm new to D but got into it pretty quickly...
it's heaven for a lazy old C coder! }:->>>

I just wonder if there is no library function that
works like 'malloc' but in garbage collected memory?

Happy hacking, 0ffh

p.s.
I am probably not looking for the 'new' operator,
as 'new' seems to take only certain types as
"argument", not the size of the requested memory
chunk, as does 'malloc'.

0ffh wrote:

> 
> Hi, I'm new to D but got into it pretty quickly...
> it's heaven for a lazy old C coder! }:->>>
> 
> I just wonder if there is no library function that
> works like 'malloc' but in garbage collected memory?
> 
> Happy hacking, 0ffh
> 
> p.s.
> I am probably not looking for the 'new' operator,
> as 'new' seems to take only certain types as
> "argument", not the size of the requested memory
> chunk, as does 'malloc'.

are you sure about the new thing. I think that this code would work.

new void[SIZE];

where SIZE is an integer representing how large chunk of memory you want to reserve.

ps. this newsgroup is all but abandoned use the digitalmars.D instead.

Johan Granberg wrote:
> 0ffh wrote:
> 
>> I just wonder if there is no library function that
>> works like 'malloc' but in garbage collected memory?
>> [...]
>> p.s.
>> I am probably not looking for the 'new' operator,
>> [...]
> 
> are you sure about the new thing. I think that this code would work.
> 
> new void[SIZE];
> 
> where SIZE is an integer representing how large chunk of memory you want to
> reserve.
> 
> ps. this newsgroup is all but abandoned use the digitalmars.D instead.

Well, thanks, "void d[]=new void[100];" seems to compile fine.
Now I just wonder how many bytes 100 voids weight? :-)
Do you think it would be evil to steal the pointer out of the
array, because I'd really like to get a pointer as a result?

Cheers, 0ffh

0ffh wrote:
> Johan Granberg wrote:
>> 0ffh wrote:
>>
>>> I just wonder if there is no library function that
>>> works like 'malloc' but in garbage collected memory?
>>> [...]
>>> p.s.
>>> I am probably not looking for the 'new' operator,
>>> [...]
>>
>> are you sure about the new thing. I think that this code would work.
>>
>> new void[SIZE];
>>
>> where SIZE is an integer representing how large chunk of memory you want to
>> reserve.
>>
>> ps. this newsgroup is all but abandoned use the digitalmars.D instead.
> 
> Well, thanks, "void d[]=new void[100];" seems to compile fine.
> Now I just wonder how many bytes 100 voids weight? :-)
> Do you think it would be evil to steal the pointer out of the
> array, because I'd really like to get a pointer as a result?

No problem.

void d[]=new void[100];
some_library_fn_that_takes_a_void_ptr(d.ptr);

Works fine.

--bb

Okay, thanks, you have all been very helpful!

I just couldn't find that information online,
although now I probably could... :-)

Am currently writing an interpreter and moved
from C to D to take advantage of the built-in
garbage collector, saves me loads of work and
removes lots of opportunities for errors!

Happy hacking, 0ffh

0ffh wrote:
> 
> 
> Well, thanks, "void d[]=new void[100];" seems to compile fine.
> Now I just wonder how many bytes 100 voids weight? :-)
> Do you think it would be evil to steal the pointer out of the
> array, because I'd really like to get a pointer as a result?
> 
> Cheers, 0ffh

I'm not trying to be pedantic, but I get the feeling that "void[] d = new void[100];" would be more appropriate to D style than using the C style declaration of "void d[] = new void[100];".  That is, put array/pointer decorations on the type rather than the variable name. Just thought you'd like to know.