On Tuesday, 30 March 2021 at 21:53:34 UTC, Basile B. wrote:
struct Typedef(TBase)
{
TBase payload;
alias payload this;
}
alias Xobj = Typedef!(void*);
This is how std.typecons.Typedef made, IMHO.
The problem is this code generate struct with name
"Typedef!(void*)",
then compiler show
On Tuesday, 30 March 2021 at 19:33:31 UTC, novice2 wrote:
On Tuesday, 30 March 2021 at 19:12:29 UTC, Ali Çehreli wrote:
"Derived type" is used in the context of object oriented
programming at least in D
Sorry, i use wrong termin.
I just want create new type Tnew, based on exist type Tbase.
Tne
On Tuesday, 30 March 2021 at 19:47:41 UTC, novice2 wrote:
My tries to make template for struct and alias this:
// variant 1
template Typedef(alias Tnew, Tbase)
{
struct Tnew
{
Tbase payload;
alias payload this;
}
}
you must give a name to the template specialization, using a
My tries to make template for struct and alias this:
// variant 1
template Typedef(alias Tnew, Tbase)
{
struct Tnew
{
Tbase payload;
alias payload this;
}
}
Typedef!(Xobj, void*);
void foo (Xobj obj) {} //compiler Error: no identifier for
declarator Typedef!(Xobj, void*)
On Tuesday, 30 March 2021 at 19:12:29 UTC, Ali Çehreli wrote:
"Derived type" is used in the context of object oriented
programming at least in D
Sorry, i use wrong termin.
I just want create new type Tnew, based on exist type Tbase.
Tnew have same allowed values, same properties, same allowed
On 3/30/21 6:28 AM, novice3 wrote:
> I want create derived type in D
"Derived type" is used in the context of object oriented programming at
least in D but your examples indicate you need something else. How about
the 'alias this' feature?
import std.stdio;
struct Xobj {
void* value;
al
On Tuesday, 30 March 2021 at 14:45:12 UTC, WebFreak001 wrote:
Xobj can then be used interchangeably with void*, so all void*
arguments accept Xobj and all Xobj arguments accept void*.
yes, i understand alias, and i dont want such behaviour
If you want a type-safe alias that makes all void* ar
On Tuesday, 30 March 2021 at 13:43:52 UTC, Mike Parker wrote:
the straightforward way is just to use an alias.
i cant use alias - compiler cannot distinguish base type and
alias, and cannot catch programmer errors
Buf if you need a more concrete type, you can use alias this in
a struct:
I
On Tuesday, 30 March 2021 at 13:19:02 UTC, Adam D. Ruppe wrote:
On Tuesday, 30 March 2021 at 08:31:02 UTC, Luhrel wrote:
I have been used this trick in C++, so it might also work in D:
If you follow through the link that's what I mention as being a
bad idea and provide the code given as a mor
On Tuesday, 30 March 2021 at 14:45:12 UTC, WebFreak001 wrote:
When i adapt C code, i see new type creation:
The typedef in C in D is just an alias:
```
alias Xobj = void*;
```
I totally overlooked the part about porting from C.
Yes, this is the way to go in that case.
On Tuesday, 30 March 2021 at 13:28:55 UTC, novice3 wrote:
Hello.
When i adapt C code, i see new type creation:
typedef void* Xobj;
Or code like this:
struct _Xobj;
typedef struct _Xobj *Xobj;
I want create derived type in D, found std.typecons.Typedef
template, and write:
alias Xobj
On Tuesday, 30 March 2021 at 13:28:55 UTC, novice3 wrote:
This messages dont help me understand, which type should i use.
What i should change?
Or Typedef template should be changes?
From the docs:
"Unlike the alias feature, Typedef ensures the two types are not
considered as equals.
Param
On 3/30/21 3:05 AM, Imperatorn wrote:
On Monday, 29 March 2021 at 18:19:35 UTC, Steven Schveighoffer wrote:
On 3/29/21 1:48 PM, Imperatorn wrote:
On Monday, 29 March 2021 at 17:21:25 UTC, tastyminerals wrote:
[...]
https://youtu.be/un-bZdyumog?t=27m25s
FYI that package is here: https://cod
Hello.
When i adapt C code, i see new type creation:
typedef void* Xobj;
Or code like this:
struct _Xobj;
typedef struct _Xobj *Xobj;
I want create derived type in D, found std.typecons.Typedef
template, and write:
alias Xobj = Typedef!(void*, (void*).init);
But compiler use long ty
On Tuesday, 30 March 2021 at 08:31:02 UTC, Luhrel wrote:
I have been used this trick in C++, so it might also work in D:
If you follow through the link that's what I mention as being a
bad idea and provide the code given as a more correct alternative.
It changes a global (well to the console
On Tuesday, 30 March 2021 at 08:31:02 UTC, Luhrel wrote:
I have been used this trick in C++, so it might also work in D:
```
import core.stdc.stdlib;
import std.stdio;
void main()
{
version(Windows)
system("chcp 65001 > NUL".ptr);
writeln("çéäö");
}
```
Works like a charm in
On Monday, 29 March 2021 at 02:12:57 UTC, Brad wrote:
I am new here so I will post this in Learn.
I have been doing a bit of reading on printing unicode
characters in the Windows Console. Specifically W10 command
prompt. I ran across a post by Adam Ruppe in a thread created
a couple years a
On Tuesday, 30 March 2021 at 04:01:12 UTC, Brad wrote:
I would like to use an updated version of the Termbox library
(written in C) with D. I have the .h file. This is new
territory for me (why try something easy - right?). I think I
need to create a .di file that corresponds to the .h file.
On Tuesday, 30 March 2021 at 04:01:12 UTC, Brad wrote:
I would like to use an updated version of the Termbox library
(written in C) with D. I have the .h file. This is new
territory for me (why try something easy - right?). I think I
need to create a .di file that corresponds to the .h file.
On Tuesday, 30 March 2021 at 04:01:12 UTC, Brad wrote:
I would like to use an updated version of the Termbox library
(written in C) with D. I have the .h file. This is new
territory for me (why try something easy - right?). I think I
need to create a .di file that corresponds to the .h file.
On Monday, 29 March 2021 at 18:19:35 UTC, Steven Schveighoffer
wrote:
On 3/29/21 1:48 PM, Imperatorn wrote:
On Monday, 29 March 2021 at 17:21:25 UTC, tastyminerals wrote:
[...]
https://youtu.be/un-bZdyumog?t=27m25s
FYI that package is here:
https://code.dlang.org/packages/jsoniopipe
I re
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