How can I modify the pre serialization and post serialization
values? I need to transform some variables that are stored but I
would like to do this easily "inline"(would be cool to be able to
provide a delegate to do the transformations at the site of
definition of the fields).
Also, how do
What is the best optimizations that a compiler does to switches
in general and in the D compilers?
A switch can be seen as if statements, or safer, nested if elses.
but surely the cost per case does not grow with depth in the
switch? If one has a switch of N case then the last cost surely
doe
On Sunday, 27 May 2018 at 09:28:36 UTC, Mike Franklin wrote:
On Sunday, 27 May 2018 at 09:23:09 UTC, IntegratedDimensions
wrote:
C[] c;
@property C[] get() { return c; }
get ~= something;
errors out, yet
auto q = get;
q ~= something;
is fine.
Why is D thinking that ~= is being applied to g
On Sunday, 27 May 2018 at 13:20:08 UTC, Adam D. Ruppe wrote:
On Sunday, 27 May 2018 at 06:47:38 UTC, IntegratedDimensions
wrote:
Putting the code in a template/function/lambda does not work
because of the scopes which will be called when the main
function exists.
I think you might just be usi
C[] c;
@property C[] get() { return c; }
get ~= something;
errors out, yet
auto q = get;
q ~= something;
is fine.
Why is D thinking that ~= is being applied to get, the function,
rather than what it returns?
Also
When I converted a field in to a property, an AA, it is returning
null rat
I have some code like
void foo()
{
// setup stuff
int x;
scope(exit) something;
//
x = 34;
}
void foon()
{
// setup stuff
int x;
scope(exit) something;
//
}
All the setup stuff is virtually identical in each foo. There are
slight differences such
I guess I should have mentioned that basically this is like a C
macro.
Investigating further, this does not seem to be pushed on the
stack but set in EAX.
Hence no amount of parameter placement manipulation will work. It
actually becomes an easy situation although this will be invalid
as it will be be whatever value is in EAX used by the caller.
One cannot set
On Saturday, 26 May 2018 at 01:11:39 UTC, crimaniak wrote:
On Thursday, 24 May 2018 at 20:24:32 UTC, IntegratedDimensions
wrote:
I'm pretty much guaranteed that in C, t will be type TT due to
the design(C goes with TT like bread with butter).
...
1) Your architecture is wrong, I recommend to re
On Friday, 25 May 2018 at 10:45:23 UTC, Steven Schveighoffer
wrote:
On 5/24/18 4:24 PM, IntegratedDimensions wrote:
What I'd like to do is
class C : A
{
private override @property TT t() { return cast(TT)(_t); }
// null check if necessary
// Stuff below uses t which is now a TT
.
On Friday, 25 May 2018 at 10:45:23 UTC, Steven Schveighoffer
wrote:
On 5/24/18 4:24 PM, IntegratedDimensions wrote:
What I'd like to do is
class C : A
{
private override @property TT t() { return cast(TT)(_t); }
// null check if necessary
// Stuff below uses t which is now a TT
.
On Friday, 25 May 2018 at 01:42:48 UTC, Basile B. wrote:
On Friday, 25 May 2018 at 01:17:45 UTC, IntegratedDimensions
wrote:
On Friday, 25 May 2018 at 01:02:00 UTC, Basile B. wrote:
On Friday, 25 May 2018 at 00:15:39 UTC, IntegratedDimensions
wrote:
On Thursday, 24 May 2018 at 23:31:50 UTC, Al
On Friday, 25 May 2018 at 01:02:00 UTC, Basile B. wrote:
On Friday, 25 May 2018 at 00:15:39 UTC, IntegratedDimensions
wrote:
On Thursday, 24 May 2018 at 23:31:50 UTC, Alex wrote:
On Thursday, 24 May 2018 at 20:24:32 UTC,
IntegratedDimensions wrote:
class T;
class TT : T;
interface I
{
@pro
On Thursday, 24 May 2018 at 23:31:50 UTC, Alex wrote:
On Thursday, 24 May 2018 at 20:24:32 UTC, IntegratedDimensions
wrote:
class T;
class TT : T;
interface I
{
@property T t();
}
abstract class A
{
T _t;
@property T t() { return _t; }
}
class C : A
{
// Stuff below uses t as TT
class T;
class TT : T;
interface I
{
@property T t();
}
abstract class A
{
T _t;
@property T t() { return _t; }
}
class C : A
{
// Stuff below uses t as TT but compiler, of course, treats t
as T
...
}
The issue is that I programmed the class C with a variable that
directly
On Wednesday, 23 May 2018 at 10:55:02 UTC, Malte wrote:
On Wednesday, 23 May 2018 at 02:24:08 UTC, IntegratedDimensions
wrote:
[...]
I would just do
[...]
[...]
Thanks, I didn't think about using a for loop like that. While it
is not the most general it does solve the specific case for
On Wednesday, 23 May 2018 at 03:00:17 UTC, Nicholas Wilson wrote:
On Wednesday, 23 May 2018 at 02:24:08 UTC, IntegratedDimensions
wrote:
Many times in expensive loops one must make decisions.
Decisions must be determined and the determination costs.
for(int i = 0; i < N; i++)
{
if(decisi
Many times in expensive loops one must make decisions. Decisions
must be determined and the determination costs.
for(int i = 0; i < N; i++)
{
if(decision(i)) A; else B;
}
the if statement costs N times the cycle cost.
In some cases the decision holds for continuous ranges. For some
0 <=
On Tuesday, 22 May 2018 at 23:09:24 UTC, Sjoerd Nijboer wrote:
On Tuesday, 22 May 2018 at 22:17:05 UTC, IntegratedDimensions
wrote:
On Tuesday, 22 May 2018 at 22:10:52 UTC, Alex wrote:
On Tuesday, 22 May 2018 at 21:45:07 UTC, IntegratedDimensions
wrote:
an idea to lock data by removing the ref
On Tuesday, 22 May 2018 at 22:10:52 UTC, Alex wrote:
On Tuesday, 22 May 2018 at 21:45:07 UTC, IntegratedDimensions
wrote:
an idea to lock data by removing the reference:
class A
{
Lockable!Data data;
}
The idea is that when the data is going to be used, the user
locks the data. The trick h
an idea to lock data by removing the reference:
class A
{
Lockable!Data data;
}
The idea is that when the data is going to be used, the user
locks the data. The trick here is that data is a pointer to the
data and the pointer is set to null when locked so no other data
can use it(they see
On Monday, 21 May 2018 at 02:23:27 UTC, ag0aep6g wrote:
I tried this. Your code crashes in windows dmd x86 x64.
Hm. Works for me in a virtual machine. But I'm not surprised
that it's fragile. It might be completely wrong, and it just
happens to look alright on my machine.
https://run.dlang.
On Monday, 21 May 2018 at 15:41:21 UTC, Simen Kjærås wrote:
On Saturday, 19 May 2018 at 18:44:42 UTC, IntegratedDimensions
wrote:
On Saturday, 19 May 2018 at 18:19:35 UTC, IntegratedDimensions
wrote:
Is there any way to create an int24 type that behaves just
like any other built in type without
On Sunday, 20 May 2018 at 23:05:47 UTC, ag0aep6g wrote:
On 05/20/2018 06:48 PM, IntegratedDimensions wrote:
alias callback = extern(C) int function(const(void) a, void
*b, uint c, void* context);
(I'm assuming that `a` is supposed to be a `const(void)*`.)
Where context acts as this.
I would
It should be obvious that these are simplifications. I can't pass
the variables directly as parameters as in the real case the
names may only be partially specified.
https://dpaste.dzfl.pl/fb49bf834cff
import std.stdio;
auto Q(string A)()
{
auto foo()
{
auto d = mixin(Z!(A)());
return d;
}
return foo()();
}
auto X(string A, string N)()
{
return N~" = (() { int y = 4; return "~A~" + y +
Also, one thing that would help would be able to create
identifier names that are unique to avoid collisions. Does D have
any ability to do such a thing?
I have a string mixin that returns a value or function that uses
the mixed in scope.
Currently I have to wrap the mixin in a delegate or local
function as to be able to get the value:
int x = 3;
int y = 1;
auto foo() { mixin(X!("x")); }
This allows the the mixin to see the scope but keep the
On Sunday, 20 May 2018 at 08:40:57 UTC, MGW wrote:
On Saturday, 19 May 2018 at 23:52:58 UTC, IntegratedDimensions
wrote:
I have a member callback that I want to use as a C callback.
http://www.agner.org/optimize/calling_conventions.pdf
https://www.youtube.com/watch?v=xhDS377mAc4
Sorry, I c
Furthermore:
https://issues.dlang.org/show_bug.cgi?id=3889
Shows real problems. You argue from the side that the bug already
exists so we must work around it because we can't go back and
"fix things". Who says? D has had breaking changes in the past so
it is not a deal breaker. It is also a r
On Sunday, 20 May 2018 at 02:09:47 UTC, Jonathan M Davis wrote:
On Sunday, May 20, 2018 01:51:50 IntegratedDimensions via
Digitalmars-d- learn wrote:
Simply require == null as is null and be done with it.
That would be flat out wrong for dynamic arrays, because then
auto result = arr == null
On Sunday, 20 May 2018 at 00:19:28 UTC, Jonathan M Davis wrote:
On Saturday, May 19, 2018 17:50:50 IntegratedDimensions via
Digitalmars-d- learn wrote:
So, ultimately what I feels like is that you are actually
arguing for == null to be interpreted as is null but you don't
realize it yet.
I have a member callback that I want to use as a C callback.
This is impossible due to the `hidden this` passed as the "first"
parameter.
The callback already makes it's last value a user pointer which I
use as a "this".
If I make my method static extern(C) then there is no crash and
every
On Saturday, 19 May 2018 at 18:19:35 UTC, IntegratedDimensions
wrote:
Is there any way to create an int24 type that behaves just like
any other built in type without having to reimplement
everything?
In fact, what I'd like to do is create an arbitrary type:
struct atype(T)
{
}
where atype(T
Is there any way to create an int24 type that behaves just like
any other built in type without having to reimplement everything?
On Saturday, 19 May 2018 at 01:31:38 UTC, Jonathan M Davis wrote:
On Friday, May 18, 2018 23:53:12 IntegratedDimensions via
Digitalmars-d- learn wrote:
Why does D complain when using == to compare with null? Is
there really any technical reason? if one just defines == null
to is null then
On Friday, 18 May 2018 at 23:58:18 UTC, Uknown wrote:
On Friday, 18 May 2018 at 23:53:12 UTC, IntegratedDimensions
wrote:
Why does D complain when using == to compare with null? Is
there really any technical reason? if one just defines == null
to is null then there should be no problem. It seem
Why does D complain when using == to compare with null? Is there
really any technical reason? if one just defines == null to is
null then there should be no problem. It seems like a pedantic
move by who ever implemented it and I'm hoping there is actually
a good technical reason for it.
On Sunday, 13 May 2018 at 07:42:10 UTC, Suliman wrote:
Could anybody give small example of Dependency injection
pattern? I googled about it, but found only C# examples and I
am not quite sure how to use them.
Also I would like get some explanation/comments for code.
Dependency injection is e
On Friday, 4 May 2018 at 23:29:12 UTC, Alex wrote:
Hi
I just installed D on my windows 10 and want to try to compile
a hello world. My source is a classical
import std.stdio;
void main() {
writeln("Hello, World!");
}
And I try to compile and get
C:\D>dmd hello.d
Error: module `hello` is in
trying to compile a simple program in x86. Compiles fine in dmd
and ldcx64.
Seems like ldc is using the wrong lib for some reason?
phobos2-ldc.lib(json.obj) : fatal error LNK1112: module machine
type 'x64' conflicts with target machine type 'x86'
Error: C:\Program Files (x86)\Microsoft Visual
On Wednesday, 2 May 2018 at 03:03:19 UTC, ikod wrote:
On Wednesday, 2 May 2018 at 00:04:49 UTC, IntegratedDimensions
wrote:
On Tuesday, 1 May 2018 at 23:35:42 UTC, Arun Chandrasekaran
wrote:
[...]
Ok, first try:
Unhandled exception: object.Exception can't complete call to
TLS_method at requ
On Tuesday, 1 May 2018 at 23:35:42 UTC, Arun Chandrasekaran wrote:
On Tuesday, 1 May 2018 at 21:57:22 UTC, IntegratedDimensions
wrote:
Trying to curl basic stuff but std.net.curl isn't cooperating:
This is one of the reasons I hate D ;/ I've spent more time
trying to get std.net.curl to do some
On Tuesday, 1 May 2018 at 23:02:39 UTC, Dr.No wrote:
On Tuesday, 1 May 2018 at 22:51:01 UTC, IntegratedDimensions
wrote:
[...]
those dlls:
libeay32.dll libssl32.dll ssleay32.dll
I'm sure they would be installed with whatever
[...]
I don't think so. IIRC, when I used D+curl I needed to downl
On Tuesday, 1 May 2018 at 22:08:50 UTC, Dr.No wrote:
On Tuesday, 1 May 2018 at 21:57:22 UTC, IntegratedDimensions
wrote:
Trying to curl basic stuff but std.net.curl isn't cooperating:
curl "https://www.googleapis.com/youtube/v3/channels"; -G -d
part=contentDetails -d forUsername=test -d key=so
Trying to curl basic stuff but std.net.curl isn't cooperating:
curl "https://www.googleapis.com/youtube/v3/channels"; -G -d
part=contentDetails -d forUsername=test -d key=somekey
import std.stdio;
import std.net.curl;
int main(string[] argv)
{
auto http = HTTP();
http.caInfo(
On Friday, 27 April 2018 at 14:57:34 UTC, BoQsc wrote:
On Friday, 27 April 2018 at 04:30:32 UTC, IntegratedDimensions
wrote:
On Thursday, 26 April 2018 at 06:18:25 UTC, BoQsc wrote:
On Wednesday, 25 April 2018 at 20:44:10 UTC, u0_a183 wrote:
On Wednesday, 25 April 2018 at 19:54:26 UTC, BoQsc w
On Thursday, 26 April 2018 at 06:18:25 UTC, BoQsc wrote:
On Wednesday, 25 April 2018 at 20:44:10 UTC, u0_a183 wrote:
On Wednesday, 25 April 2018 at 19:54:26 UTC, BoQsc wrote:
On Wednesday, 25 April 2018 at 19:43:31 UTC, Jonathan M Davis
wrote:
On Wednesday, April 25, 2018 19:19:58 BoQsc via
Di
On Wednesday, 25 April 2018 at 19:19:58 UTC, BoQsc wrote:
So there has been idea I've got for around few months now:
making a software which executable would contain a source file.
A software that anyone could modify by opening an executable
and quickly change a few lines of it, rerun an executa
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