I meant to link this, it includes all benchmarks and ranks gdc at 5th place
and dmd at 8 (from 2008):
http://shootout.alioth.debian.org/debian/benchmark.php?test=all&lang=all
Andreas Mayer wrote:
> Walter Bright Wrote:
>
>> I notice you are using doubles in D. dmd currently uses the x87 to
>> evaluate doubles, and on some processors the x87 is slow relative to
>> using the XMM instructions. Also, dmd's back end doesn't align the
>> doubles on 16 byte boundaries, which
Andrei:
> I'm thinking what to do about iota, which has good features but exacts
> too much cost on tight loop performance. One solution would be to define
> iota to be the simple, forward range that I defined as Iota2 in my
> previous post. Then, we need a different name for the full-fledged i
On 23/12/2010 05:34, Mariusz Gliwiński wrote:
wig looks interesting. Again, it strips const so probably D1 (i just skipped
D1, it wasn't interesting enough for me to switch from widely used languages
so don't know it's feature-set) and it's using tango, but looks promising.
SWIG 4 D uses D1/Tan
Simen kjaeraas:
> 1:
> Tuple!(int, "a") a;
> Tuple!int b;
> b = a;
>
> IMO, this is good and correct. A tuple without field names is to me a
> mere black box with data inside, and throwing some other data in there
> is ok.
I agree.
> 2:
> Tuple!( int, "a" ) a;
> Tuple!int b;
> a = b;
>
> This
I would be interested in how the D programming language is financed as a
project?
As it seems the core projects at the moment are dmd, druntime and phobos.
All of these are in a very active state with multiple contributors when
judging the revision logs.
I guess many of these contributors are
On Thu, 23 Dec 2010 01:31:29 -0500
"Nick Sabalausky" wrote:
> > Looks like a good enhancement for rdmd. That it doesn't "fail
> > successfully" is a bug.
May I suggest that rmdm prints out the command it sends to dmd (even when
successful)? Not only it's "educative" but it should provide the c
On 12/22/2010 11:04 PM, Andreas Mayer wrote:
To see what performance advantage D would give me over using a scripting
language, I made a small benchmark. It consists of this code:
auto L = iota(0.0, 1000.0);
auto L2 = map!"a / 2"(L);
auto L3 = map!"a + 2"(L2);
auto V = redu
On Wed, 22 Dec 2010 20:16:45 -0600
Andrei Alexandrescu wrote:
> Thanks for posting the numbers. That's a long time, particularly
> considering that the two map instances don't do anything. So the bulk of
> the computation is:
>
> auto L = iota(0.0, 1000.0);
> auto V = reduce!"a + b"(L3);
>
spir wrote:
There is a point I don't understand here: Iota is a range-struct
template, with
void popFront()
{
current += step;
}
So, how does the computation of an arbitrary element at a given index
affect looping speed? For mappings (and any kind of traversal, indeed),
Simen kjaeraas:
> With floating-point numbers, the above solution does not always work.
The type is known at compile time, so you can split the algorithm in two with a
"static if", and do something else if it's an integral type.
Bye,
bearophile
On 23/12/10 22:06, Thomas Mader wrote:
I would be interested in how the D programming language is financed as a
project?
As it seems the core projects at the moment are dmd, druntime and phobos.
All of these are in a very active state with multiple contributors when
judging the revision logs.
I
On Wed, 22 Dec 2010 22:14:34 -0600
Andrei Alexandrescu wrote:
> I then replaced iota's implementation with a simpler one that's a
> forward range. Then the performance became exactly the same as for the
> simple loop.
After having watched Iota's very general implementation, I tried the same
On Wed, 22 Dec 2010 23:22:56 -0600
Andrei Alexandrescu wrote:
> I'm thinking what to do about iota, which has good features but exacts
> too much cost on tight loop performance. One solution would be to define
> iota to be the simple, forward range that I defined as Iota2 in my
> previous post
On Thursday 23 December 2010 05:22:55 spir wrote:
> On Wed, 22 Dec 2010 23:22:56 -0600
>
> Andrei Alexandrescu wrote:
> > I'm thinking what to do about iota, which has good features but exacts
> > too much cost on tight loop performance. One solution would be to define
> > iota to be the simple,
bearophile wrote:
Simen kjaeraas:
With floating-point numbers, the above solution does not always work.
The type is known at compile time, so you can split the algorithm in two
with a "static if", and do something else if it's an integral type.
Absolutely. However, in this example doubl
On Thu, 23 Dec 2010 05:29:32 -0800
Jonathan M Davis wrote:
> On Thursday 23 December 2010 05:22:55 spir wrote:
> > On Wed, 22 Dec 2010 23:22:56 -0600
> >
> > Andrei Alexandrescu wrote:
> > > I'm thinking what to do about iota, which has good features but exacts
> > > too much cost on tight loop
spir wrote:
On Wed, 22 Dec 2010 23:22:56 -0600
Andrei Alexandrescu wrote:
I'm thinking what to do about iota, which has good features but exacts
too much cost on tight loop performance. One solution would be to define
iota to be the simple, forward range that I defined as Iota2 in my
previou
On Thu, 23 Dec 2010 14:40:13 +0100
"Simen kjaeraas" wrote:
> > What kind of thingie does "i..j" actually construct as of now?
>
> Nothing. The syntax only works in foreach and opSlice.
>
> However, this works:
>
> final abstract class Intervals {
> struct Interval( T ) {
> T st
On 12/22/10 11:40 PM, Brad Roberts wrote:
Since the timing code isn't here, I'm assuming you guys are doing the
testing around the whole app. While that might be interesting, it's
hiding an awfully large and important difference, application startup
time.
C has very little, D quite a bit more,
On 12/23/10 12:31 AM, Nick Sabalausky wrote:
"Andrei Alexandrescu" wrote in message
news:iethab$2dj...@digitalmars.com...
On 12/22/10 12:13 PM, spir wrote:
Hello,
Is it possible use rdmd (to automagically link against imported D
modules), when also calling C funcs? I tried to add the C file a
On 12/23/10 2:52 AM, bearophile wrote:
Andrei:
I'm thinking what to do about iota, which has good features but exacts
too much cost on tight loop performance. One solution would be to define
iota to be the simple, forward range that I defined as Iota2 in my
previous post. Then, we need a differ
On 12/22/10 8:16 PM, Andrei Alexandrescu wrote:
On 12/22/10 4:04 PM, Andreas Mayer wrote:
To see what performance advantage D would give me over using a
scripting language, I made a small benchmark. It consists of this code:
auto L = iota(0.0, 1000.0);
auto L2 = map!"a / 2"(L);
auto L3 = m
On 12/23/10 6:57 AM, bearophile wrote:
Simen kjaeraas:
With floating-point numbers, the above solution does not always work.
The type is known at compile time, so you can split the algorithm in two with a
"static if", and do something else if it's an integral type.
That's what the code cur
On 12/23/10 7:04 AM, spir wrote:
On Wed, 22 Dec 2010 22:14:34 -0600
Andrei Alexandrescu wrote:
I then replaced iota's implementation with a simpler one that's a
forward range. Then the performance became exactly the same as for the
simple loop.
After having watched Iota's very general imple
On 12/23/10 6:22 AM, spir wrote:
On Wed, 22 Dec 2010 20:16:45 -0600
Andrei Alexandrescu wrote:
Thanks for posting the numbers. That's a long time, particularly
considering that the two map instances don't do anything. So the bulk of
the computation is:
auto L = iota(0.0, 1000.0);
auto V =
On 12/22/10 4:04 PM, Andreas Mayer wrote:
To see what performance advantage D would give me over using a scripting
language, I made a small benchmark. It consists of this code:
auto L = iota(0.0, 1000.0);
auto L2 = map!"a / 2"(L);
auto L3 = map!"a + 2"(L2);
auto V = reduce!
I tested this issue.
I think mangledName does not support nested function.
I'll try to resolve it.
Kenji Hara
2010/12/23 Andrej Mitrovic :
> import std.stdio;
> import std.demangle;
> import std.traits;
>
> void main()
> {
> void test()
> {
> }
>
> auto mystr = mangledName!(test); //
23.12.2010 7:49, Andrej Mitrovic пишет:
On 12/23/10, Sean Kelly wrote:
Okay, I'm about to check in this change. With it, demangle works on the
string you supplied provided it's prefixed with "_D8" or "D8". Simply
having "demangle4mainFAAyaZv4testMFZv" isn't a complete symbol.
Thanks. It wor
Andrei Alexandrescu wrote:
I decided to check in the map cache removal. We discussed it a fair
amount among Phobos devs. I have no doubts caching might help in certain
cases, but it does lead to surprising performance loss for simple cases
like the one tested here. See
http://www.dsource
Andrei Alexandrescu wrote:
http://www.dsource.org/projects/phobos/changeset/2231
BTW, shouldn't range constructors call .save for forward ranges? This
one certainly doesn't.
--
Simen
I think you just need to pass a flag to SWIG when building it to get
D2 support. I've done it a few days ago..
On 12/23/10, BLS wrote:
> On 23/12/2010 05:34, Mariusz Gliwiński wrote:
>> wig looks interesting. Again, it strips const so probably D1 (i just
>> skipped
>> D1, it wasn't interesting en
On 12/23/10, Stanislav Blinov wrote:
> Do you mean it works with _D3 even for mangled name starting with
> "demangle"? It shouldn't. 3 is a character count of the following name.
No, I meant without "demangle", so that's fine.
> I beleive the hex part at the end is a hash that is used to mangle
On 12/23/10 10:09 AM, Simen kjaeraas wrote:
Andrei Alexandrescu wrote:
I decided to check in the map cache removal. We discussed it a fair
amount among Phobos devs. I have no doubts caching might help in
certain cases, but it does lead to surprising performance loss for
simple cases like the o
On 12/23/10 10:14 AM, Simen kjaeraas wrote:
Andrei Alexandrescu wrote:
http://www.dsource.org/projects/phobos/changeset/2231
BTW, shouldn't range constructors call .save for forward ranges? This
one certainly doesn't.
Currently higher-order ranges assume that the range passed-in is good to
On 12/23/10 5:23 AM, spir wrote:
On Thu, 23 Dec 2010 01:31:29 -0500
"Nick Sabalausky" wrote:
Looks like a good enhancement for rdmd. That it doesn't "fail
successfully" is a bug.
May I suggest that rmdm prints out the command it sends to dmd (even when successful)?
Not only it's "educative"
Am 2010-12-23 13:57, schrieb Justin Johansson:
On 23/12/10 22:06, Thomas Mader wrote:
I would be interested in how the D programming language is financed as a
project?
As it seems the core projects at the moment are dmd, druntime and phobos.
All of these are in a very active state with multiple
Sorry, current dmd does't provide the mangled name from function symbol.
see http://d.puremagic.com/issues/show_bug.cgi?id=2774
2010/12/24 kenji hara :
> I tested this issue.
> I think mangledName does not support nested function.
> I'll try to resolve it.
>
> Kenji Hara
>
> 2010/12/23 Andrej Mitr
Thomas Mader wrote:
> I guess many of these contributors are volunteers but
> are there also people who get somehow money for their work?
Yup. I use D almost exclusively in my professional work, and if
something bugs me in the course of that, I fix it, and if
applicable, submit the fix back upstre
Okay, thanks for letting me know!
On 12/23/10, kenji hara wrote:
> Sorry, current dmd does't provide the mangled name from function symbol.
> see http://d.puremagic.com/issues/show_bug.cgi?id=2774
>
> 2010/12/24 kenji hara :
>> I tested this issue.
>> I think mangledName does not support nested f
"Andrei Alexandrescu" wrote in message
news:ievlbg$el...@digitalmars.com...
> On 12/23/10 12:31 AM, Nick Sabalausky wrote:
>> "Andrei Alexandrescu" wrote in message
>> news:iethab$2dj...@digitalmars.com...
>>> On 12/22/10 12:13 PM, spir wrote:
Hello,
Is it possible use rdmd (to au
"Nick Sabalausky" wrote in message
news:if04me$1vp...@digitalmars.com...
> "Andrei Alexandrescu" wrote in message
> news:ievlbg$el...@digitalmars.com...
>> On 12/23/10 12:31 AM, Nick Sabalausky wrote:
>>> "Andrei Alexandrescu" wrote in message
>>> news:iethab$2dj...@digitalmars.com...
On
On 12/23/2010 7:57 AM, Justin Johansson wrote:
On 23/12/10 22:06, Thomas Mader wrote:
I would be interested in how the D programming language is financed as a
project?
As it seems the core projects at the moment are dmd, druntime and phobos.
All of these are in a very active state with multiple
On Thu, 23 Dec 2010 17:41:06 +0100
Thomas Mader wrote:
> I think it's very important for D to step into the corporate world to
> get more stability, a bigger community and therefore a stronger toolchain.
> For this to happen companies need trust in the future of the project and
> the future are
Am 2010-12-23 21:01, schrieb spir:
On Thu, 23 Dec 2010 17:41:06 +0100
Thomas Mader wrote:
I think it's very important for D to step into the corporate world to
get more stability, a bigger community and therefore a stronger toolchain.
For this to happen companies need trust in the future of th
On Thursday 23 December 2010 12:43:11 Thomas Mader wrote:
> Am 2010-12-23 21:01, schrieb spir:
> > On Thu, 23 Dec 2010 17:41:06 +0100
> >
> > Thomas Mader wrote:
> >> I think it's very important for D to step into the corporate world to
> >> get more stability, a bigger community and therefore a
On Thu, 23 Dec 2010 15:43:11 -0500, Thomas Mader
wrote:
Am 2010-12-23 21:01, schrieb spir:
On Thu, 23 Dec 2010 17:41:06 +0100
Thomas Mader wrote:
I think it's very important for D to step into the corporate world to
get more stability, a bigger community and therefore a stronger
toolcha
On 12/23/10 3:21 PM, Steven Schveighoffer wrote:
On Thu, 23 Dec 2010 15:43:11 -0500, Thomas Mader
wrote:
Am 2010-12-23 21:01, schrieb spir:
On Thu, 23 Dec 2010 17:41:06 +0100
Thomas Mader wrote:
I think it's very important for D to step into the corporate world to
get more stability, a bigg
Andrei Alexandrescu wrote:
> I think the bread and butter support
> is as rock solid in both languages.
I agree. For my day to day work, I'm pretty conservative in the
use of the language; 90% of my code is probably best characterized
as "a better C".
Interestingly though, I use a template of som
You got me excited, so I decided to give GDC another try. I cloned the
repo, and using GCC 4.4.5, it compiled without errors.
I started following the examples in TDPL, but the Stat program on page 22
gives the following errors:
t1.d:33: Error: void has no value
t1.d:33: Error: incompatible types
== Quote from Caligo (iteronve...@gmail.com)'s article
> --001636e0a9cc00219904981c2ad9
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: quoted-printable
> You got me excited, so I decided to give GDC another try. I cloned the
> repo, and using GCC 4.4.5, it compiled without
== Quote from Iain Buclaw (ibuc...@ubuntu.com)'s article
> == Quote from Caligo (iteronve...@gmail.com)'s article
> > --001636e0a9cc00219904981c2ad9
> > Content-Type: text/plain; charset=UTF-8
> > Content-Transfer-Encoding: quoted-printable
> > You got me excited, so I decided to give GDC another t
On 12/24/10, Caligo wrote:
> You got me excited, so I decided to give GDC another try. I cloned the
> repo, and using GCC 4.4.5, it compiled without errors.
> I started following the examples in TDPL, but the Stat program on page 22
> gives the following errors:
>
> t1.d:33: Error: void has no va
On 12/24/10, Andrej Mitrovic wrote:
> Use stdin.readf:
And don't forget to catch those exceptions!
import std.exception, std.stdio, std.conv;
void main(string[] args)
{
try
{
for (double x; stdin.readf(" %s ", &x) == 1;)
{
writeln(x); // or was it stat.postpr
On Thu, Dec 23, 2010 at 5:38 PM, Andrej Mitrovic wrote:
> On 12/24/10, Caligo wrote:
> > You got me excited, so I decided to give GDC another try. I cloned the
> > repo, and using GCC 4.4.5, it compiled without errors.
> > I started following the examples in TDPL, but the Stat program on page 2
On 12/23/10 5:50 PM, Caligo wrote:
On Thu, Dec 23, 2010 at 5:38 PM, Andrej Mitrovic
mailto:andrej.mitrov...@gmail.com>> wrote:
On 12/24/10, Caligo mailto:iteronve...@gmail.com>> wrote:
> You got me excited, so I decided to give GDC another try. I
cloned the
> repo, and using
I hope I didn't miss anything; I copied it from the book.
import std.stdio, std.exception;
interface Stat{
void accumulate(double x);
void postprocess();
double result();
}
class Min : Stat{
private double min = double.max;
void accumulate(double x){
if( x < min ){
On 12/23/10 6:11 PM, Caligo wrote:
I hope I didn't miss anything; I copied it from the book.
Looking good, I reproduced the exception as a miscommunication between
readf and parse. Give me a little time to look into this.
Andrei
On 12/23/10 6:11 PM, Caligo wrote:
I hope I didn't miss anything; I copied it from the book.
[snip]
http://www.dsource.org/projects/phobos/changeset/2233
Don't forget to call your program stats.d or put a module stats
declaration at its top.
Andrei
On 12/24/10, Andrei Alexandrescu wrote:
> Don't forget to call your program stats.d or put a module stats
> declaration at its top.
>
> Andrei
>
Hardcoding module names in our code?! I beg to differ, sir!
module testmodule;
import std.string : split;
import std.stdio : writeln;
string modulena
Thanks, Andrei. You're the best.
On Thu, Dec 23, 2010 at 9:14 PM, Andrei Alexandrescu <
seewebsiteforem...@erdani.org> wrote:
> On 12/23/10 6:11 PM, Caligo wrote:
>
>> I hope I didn't miss anything; I copied it from the book.
>>
> [snip]
>
> http://www.dsource.org/projects/phobos/changeset/2233
>
On 12/23/10 9:35 PM, Andrej Mitrovic wrote:
module testmodule;
import std.string : split;
import std.stdio : writeln;
string modulename = split(.stringof)[1];
void main()
{
writeln(modulename);
}
What the... I didn't know you can do that. Thanks for the tip!
Andrei
I don't get it. How is it able to get the name of the module like that?
On Thu, Dec 23, 2010 at 9:35 PM, Andrej Mitrovic wrote:
> On 12/24/10, Andrei Alexandrescu wrote:
> > Don't forget to call your program stats.d or put a module stats
> > declaration at its top.
> >
> > Andrei
> >
>
> Hardc
When i compile:
type[key2][key1] assocArray1;
assocArray1[key1].remove(key2);
everything is ok, but building
type[key2][key1] assocArray1;
return (assocArray1[key1].remove(key2));
gives
dmd: expression.c:817: void expToCBuffer(OutBuffer*, HdrGenState*,
Expression*, PREC): Assertion `pr != PREC_z
I hope that in the future more implementations in D can be compared for
performance against their equivalent Lua translations.
It seems that LuaJIT is a super speedy dynamic language, and it is
specifically designed to break into the performance ranges of optimized
static languages, which makes it
Am 23.12.2010 23:18, schrieb Andrei Alexandrescu:
I wonder how stable D2 is when used as a "better D1", i.e. making
conservative use of new features. I think the bread and butter support
is as rock solid in both languages.
Depends on what parts of Phobos you use, I guess.
For example the strea
On Thu, Dec 23, 2010 at 10:29 AM, Andrej Mitrovic <
andrej.mitrov...@gmail.com> wrote:
> I think you just need to pass a flag to SWIG when building it to get
> D2 support. I've done it a few days ago..
>
> On 12/23/10, BLS wrote:
> > On 23/12/2010 05:34, Mariusz Gliwiński wrote:
> >> wig looks in
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