On Monday, March 05, 2018 21:26:48 Marc via Digitalmars-d-learn wrote:
> if so, can I somehow make it copy only if newest?
It actually would have been my guess that it would copy too infrequently -
e.g. only on a fresh build - but I don't know. IIRC, it does have that
problem when running
On 2018-03-05 20:11:06 +, H. S. Teoh said:
Walter has been adamant that we should always compute std.math.*
functions with the `real` type, which on x86 maps to the non-IEEE 80-bit
floats. However, 80-bit floats have been deprecated for a while now,
Hi, do you have a reference for this?
On Monday, 5 March 2018 at 18:28:43 UTC, Steven Schveighoffer
wrote:
Note, I think the error is bogus, you should be able to create
hard-coded addresses of data at compile time -- I'm not sure
how you would do hardware registers otherwise.
I'd do them as extern variables, it wouldn't be nice
On Monday, 5 March 2018 at 06:01:27 UTC, J-S Caux wrote:
So the codes are trivial, simply some check of raw speed:
double x = 0.0;
for (int a = 0; a < 10; ++a) x += atan(1.0/(1.0 +
sqrt(1.0 + a)));
for C++ and
double x = 0.0;
for (int a = 0; a < 1_000_000_000; ++a) x +=
On Monday, 5 March 2018 at 21:05:19 UTC, bachmeier wrote:
I wonder if Ilya has worked on any of this for Mir.
Mir has sin and cos, but that's it. It looks like they use llvm
intrinsics on LDC and then fall back to phobos' implementation.
On Monday, 5 March 2018 at 23:42:59 UTC, Adam D. Ruppe wrote:
On Monday, 5 March 2018 at 23:34:50 UTC, askjfbd wrote:
string.d
The problem is you named the file string.d and didn't give a
`module x;` statement in the code, so the compiler assumed
the module is named after the file
On Tuesday, 6 March 2018 at 00:18:14 UTC, psychoticRabbit wrote:
On Monday, 5 March 2018 at 23:34:50 UTC, askjfbd wrote:
Someone please tell me how, for I am a newbie and don't know
any solutions even to this very simple problem. As I learned
dlang using the Dlang tour page, I stuck at the
On Monday, 5 March 2018 at 23:34:50 UTC, askjfbd wrote:
Someone please tell me how, for I am a newbie and don't know
any solutions even to this very simple problem. As I learned
dlang using the Dlang tour page, I stuck at the alias & Strings
page. I have tried to compile the following simple
On Monday, 5 March 2018 at 23:34:50 UTC, askjfbd wrote:
string.d
The problem is you named the file string.d and didn't give a
`module x;` statement in the code, so the compiler assumed
the module is named after the file and thus introduced a
local name `string` referring to the
if so, can I somehow make it copy only if newest?
On Monday, 5 March 2018 at 20:11:06 UTC, H. S. Teoh wrote:
Walter has been adamant that we should always compute
std.math.* functions with the `real` type, which on x86 maps to
the non-IEEE 80-bit floats. However, 80-bit floats have been
deprecated for a while now, and pretty much nobody
On Mon, Mar 05, 2018 at 06:39:21PM +, J-S Caux via Digitalmars-d-learn
wrote:
[...]
> I've tested these two very basic representative codes:
> https://www.dropbox.com/s/b5o4i8h43qh1saf/test.cc?dl=0
> https://www.dropbox.com/s/zsaikhdoyun3olk/test.d?dl=0
>
> Results:
>
> C++:
> g++ (Apple
On Monday, 5 March 2018 at 18:39:21 UTC, J-S Caux wrote:
But now comes the question: can the D fundamental maths
functions be propped up to be as fast as the C ones?
Probably, if someone takes the time to look at the bottlenecks.
On 3/5/18 2:25 PM, Marc wrote:
Can __gshared be used instead of static in the singleton pattern? I,
comming from C++, ignorantly, have never used _gshared so I went to
static instead of (being static also means thread-safe, as far I know)...
static in D is thread safe, because it's
On Monday, 5 March 2018 at 19:39:35 UTC, Robert M. Münch wrote:
On 2018-03-05 18:57:01 +, Steven Schveighoffer said:
If you want to have methods, shared kind of sucks. But this at
least tells the type system that it's shared between threads.
Why does it suck?
Because your code will
On 3/5/18 2:39 PM, Robert M. Münch wrote:
On 2018-03-05 18:57:01 +, Steven Schveighoffer said:
On 3/5/18 1:35 PM, Robert M. Münch wrote:
1. Are myMemb1..N TLS or __gshared as well?
No, they are on the heap. Only the reference is __gshared. But
effectively it is __gshared, since you
On Sunday, 4 March 2018 at 15:23:41 UTC, Nordlöw wrote:
When zeroing a slice of memory (either stack or heap) such as
enum n = 100;
ubyte[n] chunk;
should I use `memset` such as
memset(chunk.ptr, 0, n/2); // zero first half
or an array assignment such as
chunk[0 .. n/2] = 0;
On 2018-03-05 18:57:01 +, Steven Schveighoffer said:
On 3/5/18 1:35 PM, Robert M. Münch wrote:
1. Are myMemb1..N TLS or __gshared as well?
No, they are on the heap. Only the reference is __gshared. But
effectively it is __gshared, since you can reach those items via the
global
On Monday, 5 March 2018 at 18:57:01 UTC, Steven Schveighoffer
wrote:
On 3/5/18 1:35 PM, Robert M. Münch wrote:
If I use VisualD and add a watch on myObj, I don't see
anything just a "identifier myObj is undefined". Not sure if
this is because of some threads running (using the D RX
On 3/5/18 1:35 PM, Robert M. Münch wrote:
If I use VisualD and add a watch on myObj, I don't see anything just a
"identifier myObj is undefined". Not sure if this is because of some
threads running (using the D RX framework).
Can't answer your visual D questions...
So, some questions:
1.
On Monday, 5 March 2018 at 09:48:49 UTC, Uknown wrote:
Depending on your platform, the size of `double` could be
different between C++ and D. Could you check that the size and
precision are indeed the same?
Also, benchmark method is just as important as benchmark code.
Did you use DMD or LDC
Hi, I'm feeling a bit dumb but anway...
For hacking prototypes I mostly create a class to store all kind of
values. Then I create one global instance of this class and use it
everywhere. Pseudocode looks like this:
class myClass {
myMemb1;
myMembN;
this(){...}
}
On 3/5/18 1:08 PM, Stefan Koch wrote:
On Monday, 5 March 2018 at 18:04:20 UTC, Nordlöw wrote:
On Monday, 5 March 2018 at 16:07:49 UTC, Steven Schveighoffer wrote:
No, I mean you call holeKey at *runtime*. Inlined, it's just
returning a constant, so it should reduce to a constant.
A
On Monday, 5 March 2018 at 06:01:27 UTC, J-S Caux wrote:
On Monday, 5 March 2018 at 05:40:09 UTC, rikki cattermole wrote:
On 05/03/2018 6:35 PM, J-S Caux wrote:
I'm considering shifting a large existing C++ codebase into D
(it's a scientific code making much use of functions like
atan, log
On Monday, 5 March 2018 at 18:04:20 UTC, Nordlöw wrote:
On Monday, 5 March 2018 at 16:07:49 UTC, Steven Schveighoffer
wrote:
No, I mean you call holeKey at *runtime*. Inlined, it's just
returning a constant, so it should reduce to a constant.
A compile-time constant visible to the optimizer?
On Monday, 5 March 2018 at 16:07:49 UTC, Steven Schveighoffer
wrote:
No, I mean you call holeKey at *runtime*. Inlined, it's just
returning a constant, so it should reduce to a constant.
A compile-time constant visible to the optimizer?
On Monday, 5 March 2018 at 14:50:54 UTC, Adam D. Ruppe wrote:
No, ddoc does not support that. You might be able to hack it
with javascript though.
thanks, yeah eigther that or a d script to do some
postprocessing, so it can work without javascript.
On Monday, 5 March 2018 at 11:26:37 UTC, Atila Neves wrote:
On Sunday, 4 March 2018 at 10:43:06 UTC, Arjan wrote:
Is it somehow possible to only run the unittests of a single d
file within a dub project? Of course without resorting to
typing the complete commandline with all versions includes
On 3/5/18 9:01 AM, Nordlöw wrote:
On Monday, 5 March 2018 at 12:41:06 UTC, Steven Schveighoffer wrote:
pragma(inline, true)
C lazyDeleted() pure nothrow @trusted { return
cast(C)((cast(size_t*)null) + 1); }
I still can't evaluate at compile-though...
enum holeKeyOffset = 0x1;
No, ddoc does not support that. You might be able to hack it with
javascript though.
On Monday, 5 March 2018 at 12:41:06 UTC, Steven Schveighoffer
wrote:
pragma(inline, true)
C lazyDeleted() pure nothrow @trusted { return
cast(C)((cast(size_t*)null) + 1); }
I still can't evaluate at compile-though...
enum holeKeyOffset = 0x1;
pragma(inline, true)
Hi All,
Request your help, I have 3 functions such as below, I am
calling these function using another function ptManage which
executes these function's in parallel as each of the below 3
function run's on 10 - 12 different file systems, The issue is as
below
Issue:
Most of the time the
On Monday, 5 March 2018 at 05:35:28 UTC, J-S Caux wrote:
I'm considering shifting a large existing C++ codebase into D
(it's a scientific code making much use of functions like atan,
log etc).
I've compared the raw speed of atan between C++ (Apple LLVM
version 7.3.0 (clang-703.0.29)) and D
On 3/5/18 6:41 AM, Nordlöw wrote:
On Wednesday, 28 February 2018 at 20:07:50 UTC, Steven Schveighoffer wrote:
auto x = cast(Object)((cast(size_t *)null) + 1);
Thanks, how do I store it as enum or static immutable struct member?
In
@trusted pure unittest
{
class C { int value; }
C
On Wednesday, 28 February 2018 at 20:07:50 UTC, Steven
Schveighoffer wrote:
auto x = cast(Object)((cast(size_t *)null) + 1);
Thanks, how do I store it as enum or static immutable struct
member?
In
@trusted pure unittest
{
class C { int value; }
C x;
C y =
On Sunday, 4 March 2018 at 10:43:06 UTC, Arjan wrote:
Is it somehow possible to only run the unittests of a single d
file within a dub project? Of course without resorting to
typing the complete commandline with all versions includes
switches etc.
You could use unit-threaded:
On Monday, 5 March 2018 at 09:19:52 UTC, Arjan wrote:
On Sunday, 4 March 2018 at 16:51:06 UTC, Basile B. wrote:
[1]
https://github.com/BBasile/Coedit/commit/f8c5e686c8c6aaa7dc2c770121767e3e59806a0e
Thanks for givin me the idea original poster.
Guess I will have to give coedit another try
On Monday, 5 March 2018 at 06:01:27 UTC, J-S Caux wrote:
On Monday, 5 March 2018 at 05:40:09 UTC, rikki cattermole wrote:
On 05/03/2018 6:35 PM, J-S Caux wrote:
I'm considering shifting a large existing C++ codebase into D
(it's a scientific code making much use of functions like
atan, log
On Sunday, 4 March 2018 at 16:51:06 UTC, Basile B. wrote:
[1]
https://github.com/BBasile/Coedit/commit/f8c5e686c8c6aaa7dc2c770121767e3e59806a0e
Thanks for givin me the idea original poster.
Guess I will have to give coedit another try then.. ;-)
So you do use dub behind the scenes so it
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