Steven Schveighoffer:
it has to do with the fact that the minimum heap block is
16-bytes
(or 4 ints wide). Extra 3 bytes is probably for overhead and
static data.
If instead of p = [i].ptr; you did p = new int; *p = i;
You would get the same exact behavior.
No way around this, unless you w
On Fri, 14 Sep 2012 15:23:40 -0400, monarch_dodra
wrote:
Anybody know what the attribute "FINALIZE" (Finalize the data in this
block on collect) means?
Don't use it.
It specifies that the block is a D class instance, and so has a vtable
with a finalizer referenced therein.
Obviously a
On Fri, 14 Sep 2012 13:03:37 -0400, bearophile
wrote:
monarch_dodra:
int *p = [5].ptr;
-Steve
But see this benchmark:
void main() {
auto pointers = new int*[1_000_000];
foreach (int i, ref p; pointers)
p = [i].ptr;
foreach (i; 0U .. 4_000_000_000U) {}
}
On my
On Friday, 14 September 2012 at 14:27:43 UTC, monarch_dodra wrote:
On Friday, 14 September 2012 at 11:17:55 UTC, Jacob Carlborg
wrote:
Perhaps using GC.malloc?
Hum, apparently, there is a second (default aka-hidden)
argument that is a bitmask applied to the allocated memory. So
not much gai
On Friday, 14 September 2012 at 18:14:54 UTC, bearophile wrote:
monarch_dodra:
I'm allocating an array of 500_000 ulongs, and afterwards, I'm
initializing them all "by hand", making the default allocation
useless.
In std.array there are two functions to avoid a double
initialization, mostly
monarch_dodra:
I'm allocating an array of 500_000 ulongs, and afterwards, I'm
initializing them all "by hand", making the default allocation
useless.
In std.array there are two functions to avoid a double
initialization, mostly to be used for nonreference data.
Bye,
bearophile
On Friday, 14 September 2012 at 09:20:03 UTC, monarch_dodra wrote:
This is going to be quick: Is it possible to allocate and
initialize an int in the same line?
int* p = new int(5);
I haven't found a way to 1 liner it. Is it possible?
Do I have to two liner it?
int* p = new int();
*p = 5;
Th
On Fri, 14 Sep 2012 16:27:55 +0200, monarch_dodra
wrote:
On Friday, 14 September 2012 at 11:17:55 UTC, Jacob Carlborg wrote:
On 2012-09-14 12:52, monarch_dodra wrote:
int x = void;
http://dpaste.dzfl.pl/24c1baa9
Hum, but that is a stack allocated variable.
Perhaps using GC.malloc?
H
monarch_dodra:
int *p = [5].ptr;
-Steve
But see this benchmark:
void main() {
auto pointers = new int*[1_000_000];
foreach (int i, ref p; pointers)
p = [i].ptr;
foreach (i; 0U .. 4_000_000_000U) {}
}
On my 32 bit system its RAM commit is about 23 MB. The pointers
arra
On Friday, 14 September 2012 at 14:33:51 UTC, Steven
Schveighoffer wrote:
On Fri, 14 Sep 2012 05:20:16 -0400, monarch_dodra
wrote:
This is going to be quick: Is it possible to allocate and
initialize an int in the same line?
int* p = new int(5);
I haven't found a way to 1 liner it. Is it p
On Fri, 14 Sep 2012 05:20:16 -0400, monarch_dodra
wrote:
This is going to be quick: Is it possible to allocate and initialize an
int in the same line?
int* p = new int(5);
I haven't found a way to 1 liner it. Is it possible?
Do I have to two liner it?
int* p = new int();
*p = 5;
int *p
On Friday, 14 September 2012 at 11:17:55 UTC, Jacob Carlborg
wrote:
On 2012-09-14 12:52, monarch_dodra wrote:
int x = void;
http://dpaste.dzfl.pl/24c1baa9
Hum, but that is a stack allocated variable.
Perhaps using GC.malloc?
Hum, apparently, there is a second (default aka-hidden) argumen
On 2012-09-14 12:52, monarch_dodra wrote:
int x = void;
http://dpaste.dzfl.pl/24c1baa9
Hum, but that is a stack allocated variable.
Perhaps using GC.malloc?
--
/Jacob Carlborg
On Friday, 14 September 2012 at 10:33:47 UTC, David wrote:
Whilst I'm on the subject of questions, how does one allocate,
but
bypassing the extra memcpy of T.init? Is this possible?
int x = void;
http://dpaste.dzfl.pl/24c1baa9
Hum, but that is a stack allocated variable.
What about:
-
On Friday, September 14, 2012 11:20:16 monarch_dodra wrote:
> This is going to be quick: Is it possible to allocate and
> initialize an int in the same line?
>
> int* p = new int(5);
>
> I haven't found a way to 1 liner it. Is it possible?
Nope. Though I think that it should be.
> Do I have to
Whilst I'm on the subject of questions, how does one allocate, but
bypassing the extra memcpy of T.init? Is this possible?
int x = void;
http://dpaste.dzfl.pl/24c1baa9
On Friday, 14 September 2012 at 09:22:09 UTC, monarch_dodra wrote:
On Friday, 14 September 2012 at 09:20:03 UTC, monarch_dodra
wrote:
This is going to be quick: Is it possible to allocate and
initialize an int in the same line?
int* p = new int(5);
I haven't found a way to 1 liner it. Is it p
On Friday, 14 September 2012 at 09:20:03 UTC, monarch_dodra wrote:
This is going to be quick: Is it possible to allocate and
initialize an int in the same line?
int* p = new int(5);
I haven't found a way to 1 liner it. Is it possible?
Do I have to two liner it?
int* p = new int();
*p = 5;
Th
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