On Tuesday, 12 January 2021 at 00:35:41 UTC, Marcone wrote:
Hi, Someone can Help me build exe dcd server and client on
WIndows? Step by step? Becouse the informations disponible is
very hard to undestand.
Are you serious?
It's on the first page of their repo under the Setup section
https://cod
On Monday, 11 January 2021 at 00:43:00 UTC, Tim wrote:
When MessageService calls the delegate for start, db is null.
If I call start() in the Foo constructor it works just fine. Am
I missing something here? Do delegates get called outside of
their class context? I know I could just pass the db
Hi, Someone can Help me build exe dcd server and client on
WIndows? Step by step? Becouse the informations disponible is
very hard to undestand.
On Monday, 11 January 2021 at 16:10:49 UTC, Steven Schveighoffer
wrote:
There are some... odd rules.
struct S
{
[...]
immutable int e = 5; // stored in data segment, not per
instance!
Are you sure?
struct S
{
immutable int n = 123;
this(int n) { this.n = n; }
}
void main()
{
On Monday, 11 January 2021 at 21:01:57 UTC, Paul Backus wrote:
On Monday, 11 January 2021 at 15:45:51 UTC, Marcone wrote:
I can reffer length of literal string using $.
"Hello World"[0..$]
But I want make like it witout use variable name.
"Hello World"[0..?.indexOf("o")]
The exact syntax y
On Monday, 11 January 2021 at 15:45:51 UTC, Marcone wrote:
I can reffer length of literal string using $.
"Hello World"[0..$]
But I want make like it witout use variable name.
"Hello World"[0..?.indexOf("o")]
The exact syntax you want is impossible. The closest you can get
is to use an `en
On Monday, 11 January 2021 at 20:52:25 UTC, Paul Backus wrote:
All of what you're saying applies equally well to any struct
type as it does to tuples.
Sure.
It sounds like what you really want is for D *in general* to
have head-const, for all types. So there's no reason to force
it on tuples
On Monday, 11 January 2021 at 20:36:30 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 19:25:06 UTC, Paul Backus wrote:
I agree that immutability has benefits, but I don't see why
tuples should be singled out for special treatment in this
regard.
Oh, and another reason is that s
On Monday, 11 January 2021 at 19:25:06 UTC, Paul Backus wrote:
I agree that immutability has benefits, but I don't see why
tuples should be singled out for special treatment in this
regard.
Oh, and another reason is that scalars can usually be passed by
value with impunity, but you might want
On Monday, 11 January 2021 at 19:25:06 UTC, Paul Backus wrote:
On Monday, 11 January 2021 at 18:02:19 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 17:48:13 UTC, Paul Backus wrote:
Why? I'd say that an `immutable(Tuple)` should be immutable,
and a `Tuple` should be mutable, as i
On Monday, 11 January 2021 at 18:51:04 UTC, Jack wrote:
alias Callback = void function(const C, int);
void main()
{
auto l = SList!Callback();
auto a = (C c, int d) { };
auto b = (C c, int d) { };
auto c = (const C c, int d) { };
l.insert(a);
l.insert(b);
l.insert(c);
On Monday, 11 January 2021 at 18:51:04 UTC, Jack wrote:
Here's what I'm trying to make to work:
import std.container : SList;
class C
{
static immutable Foo = new C();
//
}
alias Callback = void function(const C, int);
void main()
{
auto l = SList!Callback();
auto a = (C c
On Monday, 11 January 2021 at 18:02:19 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 17:48:13 UTC, Paul Backus wrote:
Why? I'd say that an `immutable(Tuple)` should be immutable,
and a `Tuple` should be mutable, as is the case with literally
every other type in D.
Tuples are u
On Monday, 11 January 2021 at 18:37:58 UTC, ag0aep6g wrote:
On Monday, 11 January 2021 at 18:12:17 UTC, Jack wrote:
thanks! now, how would I add const here?
import std.container : SList;
auto l = SList!Callabck();
doesn't work:
auto l = SList!(const(Callabck()));
auto l = SList!(const Callabc
On Monday, 11 January 2021 at 18:12:17 UTC, Jack wrote:
thanks! now, how would I add const here?
import std.container : SList;
auto l = SList!Callabck();
doesn't work:
auto l = SList!(const(Callabck()));
auto l = SList!(const Callabck());
You said you want the callbacks to accept both mutabl
On Monday, 11 January 2021 at 16:56:05 UTC, ag0aep6g wrote:
On Monday, 11 January 2021 at 16:40:01 UTC, Jack wrote:
let's say a I have this:
void f(X foo) { }
but I'd like to make f() accept immutable X too so instead of
cast away everywhere in the code where immutable(X) is passed
to f() or
On Monday, 11 January 2021 at 17:48:13 UTC, Paul Backus wrote:
Why? I'd say that an `immutable(Tuple)` should be immutable,
and a `Tuple` should be mutable, as is the case with literally
every other type in D.
Tuples are usually immutable, it brings more correctness.
On Monday, 11 January 2021 at 14:51:29 UTC, Ola Fosheim Grøstad
wrote:
Basically, the tuple itself should be immutable, but not the
objects being referenced. I guess I could run over the types
and add const if they are not references?
Why? I'd say that an `immutable(Tuple)` should be immutable
On 11/1/21 17:10, Steven Schveighoffer wrote:
A shared member is a sharable member of the class. It does not put the
item in global storage.
There are some... odd rules.
struct S
{
static int a; // TLS
shared static int b; // shared data storage
shared int c; // local variable, but
On 11.01.21 16:27, Marcone via Digitalmars-d-learn wrote:
function [...] without template.
And why don't you want to use templates for that? It's as easy as that:
import std;
auto foo(T)(T tup) if (isTuple!T) {
// statically introspect tuple here ...
return tup;
}
void main()
{
w
On Monday, 11 January 2021 at 16:40:01 UTC, Jack wrote:
let's say a I have this:
void f(X foo) { }
but I'd like to make f() accept immutable X too so instead of
cast away everywhere in the code where immutable(X) is passed
to f() or make a overload for this, are there any way to accept
both
On Monday, 11 January 2021 at 16:40:53 UTC, Ali Çehreli wrote:
Yes. Earlier C++ string implementations used reference
counting, which caused multi-threading complications; so, many
implementations switched to copying.
Ah, I guess I've never used std::string for anything that
requires speed. T
On Monday, 11 January 2021 at 16:41:03 UTC, oddp wrote:
On 11.01.21 16:45, Marcone via Digitalmars-d-learn wrote:
"Hello World"[0..?.indexOf("o")]
Does until [1] do the trick?
"Hello World".until("o") // => "Hell"
[1] https://dlang.org/library/std/algorithm/searching/until.html
I want more
On Monday, 11 January 2021 at 14:12:57 UTC, zack wrote:
D:
void myPrint(string text){ ... }
void myPrintRef(ref string text) { ... }
In D strings are immutable so there will be no copying when
passing as function parameters. Strings are essentially like
slices when passing them.
I usually
On 1/11/21 8:22 AM, zack wrote:
On Monday, 11 January 2021 at 15:25:58 UTC, Ola Fosheim Grøstad wrote:
I meant allocation... The following prints "1", so no allocation.
Just tried on Windows with Visual Studio, it prints "0". So I guess this
is platform/compiler dependent.
Yes. Earlier C++
let's say a I have this:
void f(X foo) { }
but I'd like to make f() accept immutable X too so instead of
cast away everywhere in the code where immutable(X) is passed to
f() or make a overload for this, are there any way to accept both
in same function? those function are callback-like functi
On 11.01.21 16:45, Marcone via Digitalmars-d-learn wrote:
"Hello World"[0..?.indexOf("o")]
Does until [1] do the trick?
"Hello World".until("o") // => "Hell"
[1] https://dlang.org/library/std/algorithm/searching/until.html
On 1/11/21 7:27 AM, Marcone wrote:
I want to create a function that receive a tuple (need be a tuple) with
indetermined length and indetermined elements type without template. The
argument need be a tuple, but length and elements types indetermineds.
How can I make it?
With isIntanceOf in a t
On 1/10/21 7:27 PM, Paul wrote:
> On Monday, 11 January 2021 at 02:37:24 UTC, Ali Çehreli wrote:
>> >> T opCast(T)() const if (is(T : Vec!(size, S2), S2)) {
>
>> The is expression can be so complicated that I used a different
>> approach below.
>
>> if (isInstanceOfVec!T &&
>> T.init.
On Monday, 11 January 2021 at 15:25:58 UTC, Ola Fosheim Grøstad
wrote:
I meant allocation... The following prints "1", so no
allocation.
Just tried on Windows with Visual Studio, it prints "0". So I
guess this is platform/compiler dependent.
On 1/11/21 10:42 AM, Arafel wrote:
On 11/1/21 14:42, Steven Schveighoffer wrote:
That isn't exactly true. Member variables are members of the object.
If the object is shared, the member variables are shared. If the
object is local the variables are local.
Thread local really only applies to
I can reffer length of literal string using $.
"Hello World"[0..$]
But I want make like it witout use variable name.
"Hello World"[0..?.indexOf("o")]
I am using it:
// Tipo Nulo.
class None {}
// Função slice()
auto slice(T1, T2, T3 = None)(T1 conteudo, T2 inicio, T3 fim =
T3.init) {
int start, end, startlen;
static if (is(T2 == int)) {inicio = inicio < 0 ? conteudo.length
+ inicio : inicio;}
static if (is(T3 == int)) {fim = fim
On 11/1/21 14:42, Steven Schveighoffer wrote:
That isn't exactly true. Member variables are members of the object. If
the object is shared, the member variables are shared. If the object is
local the variables are local.
Thread local really only applies to *static* variables, such as globals
On Monday, 11 January 2021 at 14:53:08 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 14:51:29 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 14:03:39 UTC, Paul Backus wrote:
alias expand this;
Hm... this does not allow me protect the fields from being
chang
I want use file direct from resource .res without copy it to hard
disc. How can I make it?
On 10.01.21 17:29, Guillaume Piolat wrote:
On Sunday, 10 January 2021 at 16:03:53 UTC, Christian Köstlin wrote:
Good news!
I was hoping for support in ldc, but dmds super fast compile times
would be very welcome. I guess it's more work to put an ARM backend
there.
Kind regards,
Christian
I want to create a function that receive a tuple (need be a
tuple) with indetermined length and indetermined elements type
without template. The argument need be a tuple, but length and
elements types indetermineds. How can I make it?
On Monday, 11 January 2021 at 15:23:23 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 14:12:57 UTC, zack wrote:
A beginner question: How to pass strings properly to functions
in D?
Is there any allocation going on if just use a function as
"myPrint"? In C++ I have often seen call
On Monday, 11 January 2021 at 14:12:57 UTC, zack wrote:
A beginner question: How to pass strings properly to functions
in D?
Is there any allocation going on if just use a function as
"myPrint"? In C++ I have often seen calls where one just passes
a reference/const reference to a string to avoi
On Monday, 11 January 2021 at 14:03:39 UTC, Paul Backus wrote:
alias expand this;
Hm... this does not allow me protect the fields from being
changed. I also cannot use const since it is transitive and would
make it impossible to return two references to mutable objects?
Basically, the t
On Monday, 11 January 2021 at 14:51:29 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 14:03:39 UTC, Paul Backus wrote:
alias expand this;
Hm... this does not allow me protect the fields from being
changed. I also cannot use const since it is transitive and
would make it im
On Monday, 11 January 2021 at 14:03:39 UTC, Paul Backus wrote:
On Monday, 11 January 2021 at 09:42:39 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 05:59:03 UTC, Paul Backus wrote:
You can just fall back to `alias expand this` like Phobos's
Tuple does in this case. No compiler m
On 12/01/2021 3:12 AM, zack wrote:
A beginner question: How to pass strings properly to functions in D?
Is there any allocation going on if just use a function as "myPrint"? In
C++ I have often seen calls where one just passes a reference/const
reference to a string to avoid allocation.
C++:
A beginner question: How to pass strings properly to functions in
D?
Is there any allocation going on if just use a function as
"myPrint"? In C++ I have often seen calls where one just passes a
reference/const reference to a string to avoid allocation.
C++:
void myPrintCPP(const std::string& i
On Monday, 11 January 2021 at 09:42:39 UTC, Ola Fosheim Grøstad
wrote:
On Monday, 11 January 2021 at 05:59:03 UTC, Paul Backus wrote:
You can just fall back to `alias expand this` like Phobos's
Tuple does in this case. No compiler modification needed.
I though maybe it would be nice in general
On 1/11/21 3:21 AM, Arafel wrote:
On 11/1/21 1:43, Tim wrote:
Hi there,
I have something like this:
class Foo{
MongoClient db;
this(){
db = connectMongoDB("127.0.0.1");
void delegate()[string] commands = ["start": &this.start];
MessageService messenger = new M
On Monday, 11 January 2021 at 09:42:39 UTC, Ola Fosheim Grøstad
wrote:
I though maybe it would be nice in general to be able to create
static indexed type by having a special field name pattern, but
I will have a another look at staticMap (I don't really want
the full staticMap into object.d th
On Monday, 11 January 2021 at 08:21:21 UTC, Arafel wrote:
It's also possible that you'll have to make Foo itself
`shared`, or at least convert your constructor into a `shared
this ()` to get a shared instance that you can pass to a
different thread, but I'm not sure how function pointers /
del
On Monday, 11 January 2021 at 05:59:03 UTC, Paul Backus wrote:
static if (allSameType) {
auto opIndex(size_t i) {
switch (i) {
static foreach (j; 0 .. Types.length) {
case j: return this.expand[j];
}
default: assert(0); // or throw R
On Monday, 11 January 2021 at 07:38:00 UTC, Elronnd wrote:
On Monday, 11 January 2021 at 06:26:41 UTC, evilrat wrote:
Android itself is just linux under the hood, however the
launcher starts java process that fires up your activity class
(main in native languages) from there you just call your
On 11/1/21 1:43, Tim wrote:
Hi there,
I have something like this:
class Foo{
MongoClient db;
this(){
db = connectMongoDB("127.0.0.1");
void delegate()[string] commands = ["start": &this.start];
MessageService messenger = new MessageService(8081, commands);
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