i've got user defined flow charts in my C++ application that calling
C/C++ Code - could be possible to embedd dmd as a library, generate D
code out of my flow charts and execute the "compiled" code directly
without doing file io or dmd.exe runs to create dlls that i hot reload?
Am 30.03.2017 um 08:58 schrieb Ervin Bosenbacher:
That is the same, that came as a shock to me.
most compilers (for many languages) can optimize your super-trivial
example down to nothing - for at least the last 10 years or more
so whats the point? you're talkin about "performance is
Am 23.07.2015 um 22:47 schrieb Ziad Hatahet via Digitalmars-d:
Having expressions be built-in extends beyond the simple if/else case
and allowes const correctness without functions
you should stay with PHP + C# or migrated to pure C# if you need to ask
such a question here (without giving any infos about what the co-workers
understand, the real size of the project is, etc.)
Am 16.06.2015 um 01:53 schrieb Nick B:
Hi.
There is a startup in New Zealand that I have some
Am 30.12.2014 um 04:03 schrieb FrankLike:
On Monday, 29 December 2014 at 12:19:34 UTC, dennis luehring
wrote:
Am 29.12.2014 um 13:00 schrieb FrankLike:
Now,I use the win32.winioctl.d file,find
:IOCTL_STORAGE_EJECT_MEDIA ' Value is 0x0202,if you use it
,will
get the error value 50.(by
Am 29.12.2014 um 13:00 schrieb FrankLike:
Now,I use the win32.winioctl.d file,find
:IOCTL_STORAGE_EJECT_MEDIA ' Value is 0x0202,if you use it ,will
get the error value 50.(by GetLastError()).
It should be 0x2d4808.If you use it ,it works ok.
Why have this kind of mistake?
Frank
maybe just
Am 11.10.2014 06:25, schrieb Andrei Alexandrescu:
On 10/10/14, 7:54 PM, Walter Bright wrote:
On 10/10/2014 5:45 PM, Leandro Lucarella wrote:
I still don't understand why wouldn't we use environment variables for
what they've been created for, it's foolish :-)
Because using environment
Am 18.07.2014 07:54, schrieb Walter Bright:
On 7/17/2014 9:40 PM, dennis luehring wrote:
i understand your focus on dmd - but talking about fast code and optimizing
WITHOUT even trying to compare with other compiler results is just a little bit
strange for someone who stated speed = money
The
Am 18.07.2014 04:52, schrieb Walter Bright:
On 7/16/2014 7:21 AM, dennis luehring wrote:
can you give an short (working) example code to show the different resulting
assembler for your for-rewrite example - and what compilers your using for
testing - only dmd or gdc?
I used dmd.
i
Am 15.07.2014 18:20, schrieb Andrei Alexandrescu:
http://www.reddit.com/r/programming/comments/2aruaf/dconf_2014_keynote_high_performance_code_using_d/
https://www.facebook.com/dlang.org/posts/885322668148082
https://twitter.com/D_Programming/status/489081312297635840
Andrei
@Walter
can
Am 03.07.2014 17:33, schrieb Johannes Pfau:
Hi,
std.math.internal.gammafunction is the last module with failing
unittest on ARM, simply because it assumes that reals are always in
x86 extended precision format which is obviously not true on ARM.
OT question:
can you also check big endian
Am 30.06.2014 18:30, schrieb dennis luehring:
Am 30.06.2014 08:21, schrieb Walter Bright:
The only way I know to access x87 is with inline asm.
I suggest using long double on Linux and look at the compiler output. You
don't have to believe me - use gcc or clang.
gcc.godbolt.org clang 3.4.1
Am 30.06.2014 08:21, schrieb Walter Bright:
The only way I know to access x87 is with inline asm.
I suggest using long double on Linux and look at the compiler output. You
don't have to believe me - use gcc or clang.
gcc.godbolt.org clang 3.4.1 -O3
int main(int argc, char** argv)
{
return
Am 01.07.2014 00:18, schrieb Andrei Alexandrescu:
On 6/30/14, 2:20 AM, Don wrote:
For me, a stronger argument is that you can get *higher* precision using
doubles, in many cases. The reason is that FMA gives you an intermediate
value with 128 bits of precision; it's available in SIMD but not on
Am 29.06.2014 08:06, schrieb Kapps:
struct Foo {
int a;
this(this.a) { }
}
a parameter declaration with the name of the scope name??? totaly
different to everything else???
Am 28.06.2014 07:11, schrieb H. S. Teoh via Digitalmars-d:
On Sat, Jun 28, 2014 at 06:37:08AM +0200, dennis luehring via Digitalmars-d
wrote:
Am 27.06.2014 20:09, schrieb Kapps:
[...]
struct Foo {
int a;
this(int a) {
this.a = a;
}
}
forgot that case - but i
Am 28.06.2014 11:30, schrieb Jacob Carlborg:
On 2014-06-28 08:19, dennis luehring wrote:
thx for the examples - never though of these problems
i personaly would just forbid any shadowing and single-self-assign
and then having unique names (i use m_ for members and p_ for parameters
etc.) or
Am 28.06.2014 14:20, schrieb Ary Borenszweig:
On 6/28/14, 6:30 AM, Jacob Carlborg wrote:
On 2014-06-28 08:19, dennis luehring wrote:
thx for the examples - never though of these problems
i personaly would just forbid any shadowing and single-self-assign
and then having unique names (i use m_
Am 26.06.2014 02:41, schrieb Walter Bright:
On 6/25/2014 4:03 PM, bearophile wrote:
The simplest way to avoid that kind of bugs is give a shadowing global x error
(similar to the shadowing errors D gives with foreach and with statements). But
this breaks most existing D code.
D has scoped
Am 27.06.2014 10:20, schrieb dennis luehring:
I
think we hit the sweet spot at restricting shadowing detection to local scopes.
sweet does not mean - use a better name or .x to avoid manualy hard to
detect problems - its like disabled shadow detection in local scopes
what i don't
Am 27.06.2014 14:20, schrieb Russel Winder via Digitalmars-d:
On Fri, 2014-06-27 at 11:10 +, John Colvin via Digitalmars-d wrote:
[âŠ]
I understand why the current situation exists. In 2000 x87 was
the standard and the 80bit precision came for free.
Real programmers have been using
Am 27.06.2014 22:38, schrieb Tofu Ninja:
On Friday, 27 June 2014 at 08:24:16 UTC, dennis luehring wrote:
what i don't understand - why on earth should someone want to
shadow a(or better any) variable at all?
It can be useful if you are using mixins where you don't know
what is going to be in
Am 27.06.2014 20:09, schrieb Kapps:
On Friday, 27 June 2014 at 08:24:16 UTC, dennis luehring wrote:
Am 27.06.2014 10:20, schrieb dennis luehring:
I
think we hit the sweet spot at restricting shadowing detection
to local scopes.
sweet does not mean - use a better name or .x to avoid manualy
Am 24.06.2014 11:34, schrieb seany: Also, while we are at it,
does d support declarations like:
class C {
public :
int a;
string b;
double c;
}
read the manual first http://dlang.org/class
and could I as well write
class C2{
auto x
this(T)(T y)
{
this.x = y;
}
}
Am 20.06.2014 08:57, schrieb Wesley Hamilton:
I've started making a D grammar for ANTLR4, but I didn't want to
spend days testing and debugging it later if somebody already has
one.
The best search results turn up posts that are 10 years old. Only
one post has a link to a grammar file and the
Am 20.06.2014 14:32, schrieb Nick Treleaven:
Hi,
A Perlin noise benchmark was quoted in this reddit thread:
http://www.reddit.com/r/rust/comments/289enx/c0de517e_where_is_my_c_replacement/cibn6sr
It apparently shows the 3 main D compilers producing slower code than
Go, Rust, gcc, clang,
Am 20.06.2014 15:14, schrieb dennis luehring:
Am 20.06.2014 14:32, schrieb Nick Treleaven:
Hi,
A Perlin noise benchmark was quoted in this reddit thread:
http://www.reddit.com/r/rust/comments/289enx/c0de517e_where_is_my_c_replacement/cibn6sr
It apparently shows the 3 main D compilers
Am 20.06.2014 17:09, schrieb bearophile:
Nick Treleaven:
A Perlin noise benchmark was quoted in this reddit thread:
http://www.reddit.com/r/rust/comments/289enx/c0de517e_where_is_my_c_replacement/cibn6sr
This should be compiled with LDC2, it's more idiomatic and a
little faster than the
Am 20.06.2014 22:44, schrieb bearophile:
dennis luehring:
it does not makes sense to optmized this example more and
more - it should be fast with the original version
But the original code is not fast. So someone has to find what's
broken. I have shown part of the broken parts to fix (floor
Am 18.06.2014 23:22, schrieb Iain Buclaw via Digitalmars-d:
Likewise here. But unless I'm missing something (I'm not sure what
magic happens with @allocate, for instance), I'm not sure how you
could expect the optimisation passes to squash closures together.
Am I correct in that it's asking
Am 19.06.2014 07:16, schrieb deadalnix:
If they go for clang specific solution, that aren't gonna cut it
for us :(
only as an orientation what weaker language + optimizer can reach :)
Am 17.06.2014 11:30, schrieb Walter Bright:
And how would you syntax-highlight a string mixin that's assembled from
arbitrary string fragments?
You wouldn't need to, since the text editor sees only normal D code.
the text editor sees just D-code-Strings - so no syntax-highlight except
that
http://www.unicode.org/versions/Unicode7.0.0/
Am 17.06.2014 16:58, schrieb Dmitry Olshansky:
17-Jun-2014 17:43, dennis luehring пОÑеÑ:
http://www.unicode.org/versions/Unicode7.0.0/
OMG
The good news is we haven't implemented yet the collation algorithm,
so no need to re-implement it! :)
P.S. Seriously we should be good to go, with
Am 13.06.2014 16:59, schrieb Dejan Lekic:
Please no. See: javax
Spelling out 'experimental' is probably the best, for all those
reasons
already stated.
What's wrong with javax?
experimental is 100% clear and simple to understand beeing evil
javax was interpreted as eXtendet or eXtra or
Am 12.06.2014 11:17, schrieb Dmitry Olshansky:
This one thing I'm loosing sleep over - what precisely is so good in
CTFE code generation in_practical_ context (DSL that is quite stable,
not just tiny helpers)?
By the end of day it's just about having to write a trivial line in your
favorite
Am 09.06.2014 22:21, schrieb Brian Schott:
On Friday, 6 June 2014 at 23:50:40 UTC, Brian Schott wrote:
SIMD reduces execution time by 5.15% with DMD.
Compiling the non-SIMD code with GDC reduces execution time by
42.39%.
So... There's that.
Changing the code generator to output a set of if
Am 07.06.2014 01:50, schrieb Brian Schott:
On Friday, 6 June 2014 at 00:33:23 UTC, Brian Schott wrote:
Implementing some SIMD code just in the lexWhitespace function
causes a drop in total lexing time of roughly 3.7%. This looks
promising so far, so I'm going to implement similar code in
Am 06.06.2014 16:34, schrieb Dejan Lekic:
Slashdot thread:
http://developers.slashdot.org/story/11/06/15/0242237/c-the-clear-winner-in-googles-language-performance-tests
Research paper:
https://days2011.scala-lang.org/sites/days2011/files/ws3-1-Hundt.pdf
I wonder what would be situation if
Am 05.06.2014 11:42, schrieb Jonathan M Davis via Digitalmars-d-announce:
if(cond)
var = hello world;
else
var = 42;
The fact that an if statement could change the type of a variable is just
atrocious IMHO. Maybe I've just spent too much of my time in statically typed
languages, but I
Am 04.06.2014 19:57, schrieb Meta:
On Wednesday, 4 June 2014 at 17:55:15 UTC, bearophile wrote:
How many good usages of D Variant do you know?
Bye,
bearophile
It depends on what you mean by a good usage. I rarely ever use
Variant, but you *can* use it if you need weak and/or dynamic
typing.
i want to port this C++ code to good/clean D and have no real idea how
to start
contains 2 templates - a slice like and a binary reader for an slice
main idea was to copy the immutablity of the slice data to the reader
http://pastebin.com/XX2yhm8D
the example compiles fine with
Am 02.06.2014 12:09, schrieb Timon Gehr:
On 06/02/2014 09:06 AM, dennis luehring wrote:
i want to port this C++ code to good/clean D and have no real idea how
to start
contains 2 templates - a slice like and a binary reader for an slice
main idea was to copy the immutablity of the slice data
Am 31.05.2014 08:36, schrieb Russel Winder via Digitalmars-d:
As well as the average (mean), you must provide standard deviation and
degrees of freedom so that a proper error analysis and t-tests are
feasible.
average means average of benchmarked times
and the dummy values are only for
Am 31.05.2014 13:25, schrieb dennis luehring:
Am 31.05.2014 08:36, schrieb Russel Winder via Digitalmars-d:
As well as the average (mean), you must provide standard deviation and
degrees of freedom so that a proper error analysis and t-tests are
feasible.
average means average of benchmarked
faulty benchmark
-do not benchmark format
-use a dummy-var - just add(overflow is not a problem) your plus()
results to it and return that in your main - preventing dead code
optimization in any way
-introduce some sort of random-value into your plus() code, for example
use an
woudl be nice to have some sort of example by example comparison
or as an extension to the page http://dlang.org/cpptod.html
Am 28.05.2014 07:40, schrieb Jesse Phillips:
On Wednesday, 28 May 2014 at 05:30:18 UTC, Philippe Sigaud via
Digitalmars-d-announce wrote:
I did a translation of most of
could be a nice next step for D if D compiler as a library comes
someday available
http://runtimecompiledcplusplus.blogspot.co.uk/
from the blog:
Runtime Compiled C++ is in Kythera, the AI behind Star Citizen.
Video: RCC++ at the 2012 Develop Conference
http://vimeo.com/85934969
and it
example from a simulation project
a runtime-configured (0-6)-axis cinematics system able to bring axis to
an given position or calculates back to axis positions for simulation
purpose
so the interface is target/current-reached-position and axis.positions
currently done by using virtuals,
Am 28.05.2014 16:32, schrieb Byron Heads:
Would love to have this for vibe.d
for what use case?
Am 15.05.2014 05:58, schrieb FrankLike:
1.DFL's Memory Usage is the least than other. winsamp.exe is
2.1M,DFL's example's exe is 2.7M.
2.The size of DFL's example's exe files is the least than other,
and only a single file.
3.DFL's source code is the most easy to understand.
D need Christopher
Am 14.05.2014 12:33, schrieb Chris:
On Wednesday, 14 May 2014 at 10:20:51 UTC, bearophile wrote:
Chris:
Is there any huge difference as regards performance and memory
footprint between the two? Or is 2. basically 1. under the
hood?
An associative array is a rather more complex data
Am 14.05.2014 15:20, schrieb Chris:
Profiling is not really feasible, because for this to work
properly, I would have to introduce the change first to be able
to compare both. Nothing worse than carefully changing things
only to find out, it doesn't really speed up things.
why not using an
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