On Thursday, 27 February 2025 at 13:33:55 UTC, John C. wrote:
all code I have tested worked perfectly.
Of course, I had to rewrite all "RAYWHITE" to "raywhite", etc.,
but I'm happy to have working GUI library now!
On Thursday, 27 February 2025 at 12:48:19 UTC, Kapendev wrote:
On Thursday, 27 February 2025 at 08:16:33 UTC, John C. wrote:
On Thursday, 27 February 2025 at 08:10:04 UTC, John C. wrote:
But this change was not helpful, same error occured. Does this
mean that ImportC cannot parse object
On Wednesday, 26 February 2025 at 17:00:48 UTC, John C. wrote:
2. Why main.d version with "Color(...)" replaced by "RAYWHITE"
or "LIGHTGREY" (defined in header) will not compile with
"undefined identifier" error?
I have tested some basic Raylib funct
On Thursday, 27 February 2025 at 08:10:04 UTC, John C. wrote:
would removing some "hard to parse" constructs in header file
help this situation?
I tried to change
```
#define LIGHTGRAY CLITERAL(Color){ 200, 200, 200, 255 }
// Light Gray
```
To more simpler definition whic
On Wednesday, 26 February 2025 at 18:53:40 UTC, Kapendev wrote:
On Wednesday, 26 February 2025 at 17:00:48 UTC, John C. wrote:
Error (with both commands above, same result):
```
main.d(8): Error: undefined identifier `RAYWHITE`
main.d(9): Error: undefined identifier `LIGHTGRAY`
```
Both
On Wednesday, 26 February 2025 at 21:08:19 UTC, monkyyy wrote:
I think `import raylib` finds raylib.c
Thank you, it were actually using raylib.c in both cases. When I
renamed this file, import was made impossible (I think it should
have happened?)
Hello everyone. Recently I get interested in some GUI-related
stuff and I want to use Raylib in my project. I know about
raylib-d, dray, etc. bindings, but I would like to see what can
ImportC do for me in this situation.
I have following project hierarchy:
```
project/
src/
main.d
ra
On Monday, 27 January 2025 at 15:55:17 UTC, Guillaume Piolat
wrote:
You may use intel-intrinsics who:
1. guarantees float8 is there
2. have aligned malloc _mm_malloc
I have heard about intel-intrinsics and it's really good idea to
use it in my code, but I wanted to try some SIMD operations wit
On Monday, 27 January 2025 at 05:53:09 UTC, John C. wrote:
Print out the pointer to `a[0]` to verify what the actual
alignment is.
If we look to output above, first line addresses are aligned to
32 bytes
Except address with B(1011) at second from the right position?
On Sunday, 26 January 2025 at 16:43:19 UTC, Johan wrote:
The `align(32)` applies to the slice `a`, not the contents of
`a` (where `a` points to).
Thank you, seems that it is reason for that errors. I remember
that dynamic array can be represented as structure with size_t
len and pointer to me
On Sunday, 26 January 2025 at 13:59:09 UTC, John C. wrote:
I have tested this code with LDC on run.dlang.io, segmentation
fault does occur only if -mattr=+avx is used. Without this flag
no errors are produced.
Actually, if I use -mcpu=avx with DMD, no error is generated.
However, if this
On Sunday, 26 January 2025 at 12:45:11 UTC, John C. wrote:
I'm using LDC compiler 1.36.0 on x86_64 Linux system with "-w
-O3 -mattr=+avx" compiler flags.
I have tested this code with LDC on run.dlang.io, segmentation
fault does occur only if -mattr=+avx is used. Without this
On Sunday, 26 January 2025 at 12:56:55 UTC, ryuukk_ wrote:
LDC 1.36 = 1 years old
latest version is LDC 1.40
with LDC 1.40, your code works on my computer
now my turn to ask a question:
why were you using a 1 years old compiler version?
common sense would be to make sure you are up to dat
Hello everyone. I am complete newbie in D and programming at all
and I can't understand why dynamic arrays can't be used within
following D code:
```d
import std.random : uniform01;
import core.simd;
void main() {
align(32) float[] a = new float[128];
align(32) float[] b = new float[128
===
A
F
== 2 ==
A
b
c
scope exit 2
F
== end ===
```
which isn't what I want. The case for `test(1)` is fine. For
`test(2))` I want the `scope exit 2` to come after the `F`. Is
there a way to tell it that I want to use an enclosing scope or
make it ignore the scope on the `if`?
Cheers,
-- John
On Sunday, 2 June 2024 at 21:46:41 UTC, solidstate1991 wrote:
Well, it turns out I used the windres found in mingw instead of
`rc.exe` since the latter cannot be found anywhere on my PC,
even after reinstalling stuff. I need to hunt it down somehow.
rc.exe comes with the Windows SDK - it gets
On Saturday, 25 May 2024 at 13:13:08 UTC, solidstate1991 wrote:
No, I meant something like this:
https://learn.microsoft.com/en-us/windows/win32/controls/cookbook-overview
Not tested but from memory I do this:
1) Copy that first XML snippet from the page you linked, save to
a file called exa
On Friday, 12 April 2024 at 15:08:50 UTC, Steven Schveighoffer
wrote:
On Friday, 12 April 2024 at 03:57:40 UTC, John Dougan wrote:
What is the procedure for bug reporting? I'm looking at the
issues tracker and have no clue how to drive the search to see
if this is already there.
.
What is the procedure for bug reporting? I'm looking at the
issues tracker and have no clue how to drive the search to see if
this is already there.
-Steve
-- john
like attribute ordering.
-- john
`onlineapp.processSafely!(1, 4)` error instantiating
```
Why isn't this working? How can I get the effect I want?
Cheers,
-- john
```
bool[7] stagesToProcess = false;
@nogc nothrow @safe bool shouldDoInStages(int index)
{
return stagesToProcess[index];
}
@nogc nothrow @safe bool shouldDoNever(int
I'm glad you find it helpful! If you have any more questions,
whether it's about fashion or anything else, feel free to ask.
I'm here to assist you with any information or insights you might
need.https://vjackets.com/
On Tuesday, 19 December 2023 at 14:01:31 UTC, John Kiro wrote:
Thanks Adam. I agree, the behavior associated with the
initialization here is confusing (compared for example to a
similarly-looking code in Java). Also I don't get why an array
of characters would be considered as an immu
Thanks Adam. I agree, the behavior associated with the
initialization here is confusing (compared for example to a
similarly-looking code in Java). Also I don't get why an array of
characters would be considered as an immutable array of
characters (that is a **string**). I agree this could be a
#x27;; //ERROR: segmentation fault
(code -11)!
debug writefln("CharArray becomes %s (PROGRAM ABORTS
BEFORE IT ACTUALLY!)",
charArray);
}
}
Output:
$ dub run
Starting Performing "debug" build using
/home/john/dlang/dmd-2.106.0/
On Monday, 5 June 2023 at 10:43:27 UTC, Ferhat Kurtulmuş wrote:
On Monday, 5 June 2023 at 10:01:01 UTC, John Xu wrote:
The parseDOM returns a DOMEntity(R) type, how do I write a
xmlRoot as global variable?
I need its detailed type (auto / Variant doesn't work).
import dxm
The parseDOM returns a DOMEntity(R) type, how do I write a
xmlRoot as global variable?
I need its detailed type (auto / Variant doesn't work).
import dxml.dom;
?? xmlRoot;
int main() {
string xml = readText("a.xml");
auto dom = parseDOM(xml);
A correction:
string getTMember(T t, string columnName) {
foreach(member; __traits(allMembers, T)){
if (member == columnName) {
return __traits(getMember, t, member).to!string;
}
}
return "";
}
On Thursday, 1 June 2023 at 15:38:08 UTC, Steven Schveighoffer
wrote:
On 5/31/23 12:08 AM, John Xu wrote:
When render vibe.d diet template,
string[] allMembers = __traits(allMembers, t);
enum allMembers = __traits(allMembers, t);
res.render!("index.dt", t, allMemb
On Tuesday, 30 May 2023 at 15:43:12 UTC, Steven Schveighoffer
wrote:
On 5/30/23 4:46 AM, John Xu wrote:
How to put above enum as a function parameter? Following code
wouldn't work:
string getTMember(T t, enum string memberName) {
return __traits(getMember, t, membe
On Tuesday, 30 May 2023 at 01:33:54 UTC, H. S. Teoh wrote:
On Tue, May 30, 2023 at 01:24:46AM +, John Xu via
Digitalmars-d-learn wrote:
On Monday, 29 May 2023 at 11:21:11 UTC, Adam D Ruppe wrote:
> On Monday, 29 May 2023 at 09:35:11 UTC, John Xu wrote:
> > Error: variabl
On Monday, 29 May 2023 at 11:21:11 UTC, Adam D Ruppe wrote:
On Monday, 29 May 2023 at 09:35:11 UTC, John Xu wrote:
Error: variable `column` cannot be read at compile time
you should generally getMember on a variable
T t;
__traits(getMember, t, "name")
like that, that's
I saw ddbc
(https://github.com/buggins/ddbc/blob/master/source/ddbc/pods.d)
uses
static if (__traits(compiles, (typeof(__traits(getMember, T,
m) {
__traits(getMember, T, m)
}
But for my experience, above code sometimes/somewhere works,
sometimes/somewhere just doesn't:
For dmd, I can use a no_console.def file, which has:
EXETYPE NT
SUBSYSTEM WINDOWS
Then `dmd my.d no_console.def` to hide console.
But how do I realize it with dub.sdl ? Adding no_console.def to
"sourceFiles", doesn't help.
What is the best way to convert a GBK/GB18030 file contents,
i.e. read via: std.stdio.read(gbkFile).to!string ,
to utf8 encoding ?
On Friday, 19 May 2023 at 21:19:07 UTC, Richard (Rikki) Andrew
Cattermole wrote:
On 19/05/2023 9:39 PM, John Xu wrote:
On Thursday, 18 May 2023 at 15:39:05 UTC, Richard (Rikki)
Andrew Cattermole wrote:
On 19/05/2023 2:19 AM, John Xu wrote:
On Monday, 15 May 2023 at 03:54:03 UTC, Richard
On Thursday, 18 May 2023 at 15:39:05 UTC, Richard (Rikki) Andrew
Cattermole wrote:
On 19/05/2023 2:19 AM, John Xu wrote:
On Monday, 15 May 2023 at 03:54:03 UTC, Richard (Rikki) Andrew
Cattermole wrote:
That is only for OMF target.
You need rc that comes with Visual Studio C++ build tools
On Monday, 15 May 2023 at 03:54:03 UTC, Richard (Rikki) Andrew
Cattermole wrote:
That is only for OMF target.
You need rc that comes with Visual Studio C++ build tools.
Alternatively windres from mingw may work (I haven't tested).
How can I add this step to dub.sdl ?
On Saturday, 29 April 2023 at 00:31:21 UTC, Neto wrote:
On Saturday, 29 April 2023 at 00:29:28 UTC, Neto wrote:
I'm thinking in moving from freelancer to some company, but
I'd like to use D. Are there any companies hiring where D is
used? note: hire without a degree.
and remote.
I received
On Monday, 15 May 2023 at 02:45:17 UTC, John Xu wrote:
Found a related link:
https://forum.dlang.org/thread/wogdypudrmrgwjysf...@forum.dlang.org
Where Adam D Ruppe informed rcc.exe from
http://ftp.digitalmars.com/bup.zip
...
Any help? My isp.ico was converted from a png with gimp, used
in C
Found a related link:
https://forum.dlang.org/thread/wogdypudrmrgwjysf...@forum.dlang.org
Where Adam D Ruppe informed rcc.exe from
http://ftp.digitalmars.com/bup.zip
But, I got problem:
rcc -r .\resource.rc
IDI_ICON1 ICON DISCARDABLE "isp.ico"
^
.\resource.rc(1) : Error: '
On Friday, 12 May 2023 at 02:09:17 UTC, ryuukk_ wrote:
create a ``ressource.rc`` file
and paste:
```
IDI_ICON1 ICON DISCARDABLE "myicon.ico"
```
then put your ``mycon.ico`` file next to it
```
my_project\
app.d
ressource.rc
myicon.ico
```
```
dmd app.d ressource.rc
Thanks for y
I saw c# program's exe, often have an favicon.ico image bound
together, which can be dragged to desktop.
Can dmd compile an icon image to an exe also?
On Thursday, 23 March 2023 at 13:27:00 UTC, jmh530 wrote:
I've composed a simple gui, partially solved my problem:
to compile/test simple codes quickly:
https://github.com/xucs007/dln
On Thursday, 20 April 2023 at 19:41:21 UTC, Joel wrote:
// how do I get the total of ages added together?
p.map!(x => x.age).sum();
On Wednesday, 12 April 2023 at 20:36:59 UTC, H. S. Teoh wrote:
---snip---
extern(C) void* abc(void*) {return null;}
alias FuncPtr = typeof(&abc);
You can also express it like this:
```d
extern(C) alias FuncPtr = void* function(void*);
```
On Monday, 10 April 2023 at 20:31:43 UTC, Steven Schveighoffer
wrote:
On 4/10/23 4:25 PM, Steven Schveighoffer wrote:
It's also completely useless. Having const keys does nothing
to guarantee unchanging keys. Another half-assed attempt to be
encode correct semantics but fails completely in its
It seems that it isn't possible, am I missing something?
alias Q = int[int*];
pragma(msg, Q); // int[const(int)*]
Also, is this documented somewhere?
Anybody know any working REPL program? I failed to find a working
one.
https://github.com/dlang-community/drepl
can't compile on my Windows 10, dub reports:
src\drepl\engines\dmd.d(258,16): Error: undefined identifier
`dlsym`
Under dos, how to get wildchar matched file names?
PS E:> dmd a.d
PS E:> .\a.exe a.*
args=["a.exe", "a.*"]
d-glob doesn't function well under windows dos either.
I found this:
https://github.com/meatatt/exCode/blob/master/source/excode/package.d
There is mention of unicode/GBK conversion, maybe it could be
helpful
Thanks for quick answers. Now I found I can read both UTF8 and
UTF-16LE
chinese file:
string txt = std.file.read(chineseFile).to!stri
I'm new to dlang. I didn't find much tutorials on internet about
how to read/write Chinese easily. std.encoding doesn't seem to
support GBK or GB18030:
"Encodings currently supported are UTF-8, UTF-16, UTF-32, ASCII,
ISO-8859-1 (also known as LATIN-1), ISO-8859-2 (LATIN-2),
WINDOWS-1250, WIND
On Thursday, 9 February 2023 at 19:17:55 UTC, Ali Çehreli wrote:
I could not figure out eliminating the hard-coded 4. Can we
introspect the parameter list of a template like 'fun' in the
example? If we could, then we could get 4 that way.
Thank you for this. I don't mind hard-coding the N argu
On Monday, 6 February 2023 at 09:17:07 UTC, Ali Çehreli wrote:
I adapted staticMap's implementation to two sets of arguments:
So I've got this implementation, but wonder if I can generalise
the arg splitting portion rather than write it manually for each
N?
```d
template staticMapN(size_t N
On Monday, 6 February 2023 at 09:17:07 UTC, Ali Çehreli wrote:
I adapted staticMap's implementation to two sets of arguments:
Thanks Ali, that's perfect. I thought of splitting the args in
half a few hours later but hadn't got around to trying it.
I have two AliasSeqs: one containing a function's parameters
(SourceSeq), the other containing the types I want to convert
said parameters to (TargetSeq). I'd use something like staticMap
to call the conversion function with both a parameter from
SourceSeq and a type from TargetSeq, and return
On Friday, 13 January 2023 at 14:32:44 UTC, Salih Dincer wrote:
Why not directly use the mixin template for opDispatch()?
My opDispatch generates code based on the arguments passed,
interpolating variable names and functions based on the type. I
wanted to remove the double braces in my static
I'm obviously doing something wrong, but don't quite understand.
```d
mixin template helper() {
mixin("writeln(12);");
}
struct Foo {
void opDispatch(string name)() {
import std.stdio;
mixin helper!();
//mixin("writeln(12);");
}
}
void main() {
Foo.init.opDispatch!"bar"();
}
On Friday, 9 September 2022 at 00:16:01 UTC, Injeckt wrote:
I need to add this struct definition in my project. But how to
do that?
This structure:
https://docs.microsoft.com/en-us/windows/win32/api/iptypes/ns-iptypes-ip_adapter_info
It's defined in DRuntime, so you can just import the module
On Tuesday, 9 February 2021 at 12:23:52 UTC, rikki cattermole
wrote:
https://github.com/dlang-community/containers
It uses the older design for allocators (dependency).
Looks good, thank you
Normally I'm happy with the GC containers in D, they work well
and suit my use.
I have a few uses that would benefit from allocation in memory
arenas or local stack based allocation. Looks like
std.experimental has allocators for those use cases.
But I can't find any containers to make use o
On Thursday, 15 October 2020 at 20:13:37 UTC, Atmosfear wrote:
On Thursday, 15 October 2020 at 16:32:06 UTC, Imperatorn wrote:
On Thursday, 15 October 2020 at 12:45:42 UTC, Atmosfear wrote:
I didn't find how to call the queryperformancecounter
function. I tried this. Returns errors, doesn't kno
On Friday, 25 September 2020 at 15:03:56 UTC, Marcone wrote:
I need windowsx.d but for I don't know the reason is not in
dmd. Someone that have it can send to me? I don't know convert
windowsx.h to windowsx.d
windowsx.h is mostly a bunch of macros that forward to functions
elsewhere in the SD
On Thursday, 10 September 2020 at 13:30:15 UTC, FreeSlave wrote:
Thanks. I tried this, but VarDateFromStr does not succeed for
me.
It turns out the shell embeds some control characters in the
string, specifically 8206 and 8207. So remove those before
passing it to VarDateFromStr.
auto temp
On Wednesday, 9 September 2020 at 22:44:50 UTC, FreeSlave wrote:
Btw do you know how to parse a date returned by GetDetailsOf?
Couldn't find any examples in C++. I actually can see digits
representing date and time as a part of the string, but I would
prefer to use some winapi function to trans
On Tuesday, 8 September 2020 at 22:24:22 UTC, FreeSlave wrote:
However if I change the type of recycleBin variable to
IShellFolder (not IShellFolder2), the crash does not happen.
Does IShellFolder2 require some special handling?
The issue is caused by druntime's definition of IShellFolder2. T
On Monday, 27 July 2020 at 16:58:13 UTC, H. S. Teoh wrote:
On Mon, Jul 27, 2020 at 11:39:32AM +, John Burton via
Digitalmars-d-learn wrote: [...]
I tried looking there for information and examples of getting
glfw3 statically linked into my program using LDC and didn't
really find any
On Wednesday, 15 July 2020 at 22:18:47 UTC, H. S. Teoh wrote:
On Wed, Jul 15, 2020 at 09:27:22PM +, tastyminerals via
Digitalmars-d-learn wrote: [...]
D wiki is badly outdated. This is not a fact but a gut feeling
after reading through some of its pages. I was wondering who's
owning it myse
On Monday, 27 July 2020 at 08:53:25 UTC, Mike Parker wrote:
On Monday, 27 July 2020 at 07:30:42 UTC, John Burton wrote:
For reference I got this to work by doing the following :-
1) Installed visual studio build tools. I could not get this
to work at all with the linker etc that comes with
On Sunday, 26 July 2020 at 12:24:06 UTC, John Burton wrote:
On Sunday, 26 July 2020 at 10:41:27 UTC, Mike Parker wrote:
On Sunday, 26 July 2020 at 08:28:29 UTC, John Burton wrote:
And I get the following errors from the link :-
lld-link: error: undefined symbol: __GSHandlerCheck
lld-link
On Sunday, 26 July 2020 at 10:41:27 UTC, Mike Parker wrote:
On Sunday, 26 July 2020 at 08:28:29 UTC, John Burton wrote:
And I get the following errors from the link :-
lld-link: error: undefined symbol: __GSHandlerCheck
lld-link: error: undefined symbol: __security_check_cookie
lld-link
I'm trying to replicate a program I make in C++ using D.
I am using the ldc2 compiler and want to *static* link in the
glfw library.
Following the docs I have an dub.sdl file that looks like the one
below.
The library I'm linking with is the vs2019 one from the GLFW zip
file from
their websit
On Saturday, 13 June 2020 at 15:33:55 UTC, Boris Carvajal wrote:
On Saturday, 13 June 2020 at 09:02:21 UTC, John Chapman wrote:
Is this a bug or have I made a mistake? This worked a few days
ago and I haven't changed my setup since then.
https://issues.dlang.org/show_bug.cgi?id=19548
If I use a final switch and import std.uni (or any other module
that imports it, such as std.string), I'm getting unresolved
external symbol errors with DMD 2.092.
This code triggers the issue:
---
module test;
import std.uni;
enum Cheese { cheddar, edam }
void test(Cheese cheese) {
final
On Tuesday, 26 May 2020 at 13:37:22 UTC, Vinod K Chandran wrote:
On Tuesday, 26 May 2020 at 12:41:20 UTC, John Chapman wrote:
On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
Here is my full code. Please take a look.
https://pastebin.com/av3nrvtT
Change line 124 to
On Monday, 25 May 2020 at 16:26:31 UTC, Vinod K Chandran wrote:
Here is my full code. Please take a look.
https://pastebin.com/av3nrvtT
Change line 124 to:
SetWindowSubclass(this.mHandle, SUBCLASSPROC(&btnWndProc),
UINT_PTR(subClsID), cast(DWORD_PTR)cast(void*)this);
That is, change `&this`
On Monday, 25 May 2020 at 16:39:30 UTC, Mike Parker wrote:
On Monday, 25 May 2020 at 08:39:23 UTC, John Burton wrote:
I believe that in D *this* is a reference to the
object and not a pointer like in C++.
So I think that writing &this might be what you need?
No. A class reference
On Sunday, 24 May 2020 at 17:40:10 UTC, bauss wrote:
On Sunday, 24 May 2020 at 17:05:16 UTC, Vinod K Chandran wrote:
[...]
I think your issue might be elsewhere because casting this
should be fine and it should not complain about that in your
given code.
At least you should be able to pass
Is it possible to overload a function template for rectangular
arrays? Is there any way to tell them apart from normal ones?
void foo(T)(T[] a) {}
void foo(T)(T[][] a) {}
auto ra = new int[][](5, 5);
ra.foo(); // matches both
Thanks for any hints.
On Saturday, 16 May 2020 at 19:14:51 UTC, John Colvin wrote:
What's the best way to implement an Objective C protocol in D?
I see mention here
https://dlang.org/changelog/2.085.0.html#4_deprecated_objc_interfaces but it's not clear where things are these days.
Based on some exper
What's the best way to implement an Objective C protocol in D?
I see mention here
https://dlang.org/changelog/2.085.0.html#4_deprecated_objc_interfaces but it's not clear where things are these days.
On Thursday, 14 May 2020 at 09:49:15 UTC, wjoe wrote:
Is there an easy way to print an int in hexadecimal, octal or
binary representation ?
The documentation on pragma(msg, ...) and a quick web search
didn't provide an answer.
import std.string;
pragma(msg, format("%x", 10));
%x = hex
%
After years of C++ I have become paranoid about any casting of
pointers being undefined behavior due to aliasing so want to see
if :-
1) This is safe to do in D.
2) If not is there anything I can do to make it safe.
3) If not, what is the best approach?
I have a void* pointing to a block of al
On Saturday, 11 January 2020 at 10:34:34 UTC, Marcone wrote:
This code works, but I can't get file Path. Someone can help me?
import std;
import core.sys.windows.windows;
pragma(lib, "comdlg32");
void main(){
OPENFILENAME ofn;
wchar* szFileName;
You need to supply a buffer, not a poin
On Sunday, 20 October 2019 at 21:45:35 UTC, Robert M. Münch wrote:
class myWidget : Observer!message {...}
class FilterSubject : SubjectObject!message {
Disposable subscribe(myWidget observer){...}
}
I tried to add "alias subscribe = SubjectObject.subscribe;" in
different places, but that di
On Monday, 14 October 2019 at 19:45:11 UTC, Paul Backus wrote:
On Monday, 14 October 2019 at 17:00:56 UTC, John Colvin wrote:
Different ability to access a property depending if I'm inside
something else when I look?
[snip]
You're attempting to call one of S's member functi
Different ability to access a property depending if I'm inside
something else when I look?
struct S
{
int a;
static int b;
int c() { return a; }
static int d() { return 3; }
int e() @property { return a; }
static int f() @property { return 3; }
}
void foo(S s)
{
prag
I have a function that allocates a closure somewhere in it (as
shown by the result of -profile=gc).
I can't make the function nogc as it calls a lot of other GC
using code.
profilegc.log only gives me the line number of the function
signature, which doesn't give me any hint as to where in th
On Sunday, 11 August 2019 at 20:15:34 UTC, Alex wrote:
On Sunday, 11 August 2019 at 16:05:20 UTC, John Colvin wrote:
I'm trying to narrow down exactly what patterns work with each
and how they overlap.
What I was trying to get at with the abstract method thing is
that
abstract cl
On Sunday, 11 August 2019 at 15:16:03 UTC, Alex wrote:
On Sunday, 11 August 2019 at 13:09:43 UTC, John Colvin wrote:
Ok. What would go wrong (in D) if I just replaced every
interface with an abstract class?
I think there's some confusion here, because B.foo is not
abstract. abstract
On Saturday, 10 August 2019 at 17:28:32 UTC, Alex wrote:
´´´
void main(){}
interface A { void fun(); }
abstract class B{ void fun(); }
class C : A{ void fun(){} }
class D : B{ /*override*/ void fun(){} }
´´´
case 1:
interface A and class C implementing interface A:
You don't need to "override"
On Saturday, 10 August 2019 at 17:46:37 UTC, Timon Gehr wrote:
On 10.08.19 16:29, John Colvin wrote:
Ok. What would go wrong (in D) if I just replaced every
interface with an abstract class?
interface A{}
interface B{}
class C: A,B{ }
Yes, I know, I guess it wasn't clear unless you
On Saturday, 10 August 2019 at 10:11:15 UTC, Alex wrote:
On Saturday, 10 August 2019 at 08:20:46 UTC, John Colvin wrote:
On Friday, 9 August 2019 at 13:39:53 UTC, Simen Kjærås wrote:
Thanks for the extra detail.
Is there a solid reason to ever use an interface over an
abstract class
On Saturday, 10 August 2019 at 10:02:02 UTC, Antonio Corbi wrote:
On Saturday, 10 August 2019 at 08:20:46 UTC, John Colvin wrote:
On Friday, 9 August 2019 at 13:39:53 UTC, Simen Kjærås wrote:
Thanks for the extra detail.
Is there a solid reason to ever use an interface over an
abstract
On Friday, 9 August 2019 at 13:39:53 UTC, Simen Kjærås wrote:
Thanks for the extra detail.
Is there a solid reason to ever use an interface over an abstract
class? (Other than multiple inheritance).
I'm such a noob at anything related to OO.
On Friday, 9 August 2019 at 13:39:53 UTC, Simen Kjærås wrote:
We're getting into somewhat advanced topics now. This is
described in the Application Binary Interface page of the
documentation[0]. In short: classes and interfaces both use a
vtable[1] that holds pointers to each of their methods.
On Friday, 9 August 2019 at 13:19:14 UTC, kinke wrote:
On Friday, 9 August 2019 at 12:26:59 UTC, John Colvin wrote:
Why is there no "hi" between 0 and 1?
Because you are treating the unadjusted object pointer as
interface pointer and then call the only virtual function of
that int
import std.stdio;
interface I
{
void foo();
}
class C : I
{
override void foo() { writeln("hi"); }
}
abstract class AC
{
void foo();
}
class D : AC
{
override void foo() { writeln("hi"); }
}
void main()
{
auto c = new C();
writeln(0);
(cast(I)cast(void*)c).foo();
On Wednesday, 8 May 2019 at 11:53:34 UTC, Russel Winder wrote:
On Mon, 2019-05-06 at 15:53 +, John Colvin via
Digitalmars-d-learn wrote:
[…]
pretty please show people it with UFCS:
recurrence!((a, n) => a[n-1] + a[n-2])(zero, one)
.dropExactly(n)
.front
Any particular rea
On Monday, 6 May 2019 at 13:05:27 UTC, Russel Winder wrote:
On Sunday, 5 May 2019 at 19:34:05 UTC, Nicholas Wilson wrote:
On Sunday, 5 May 2019 at 19:18:47 UTC, lithium iodate wrote:
[...]
Yep https://run.dlang.io/is/XsLrRz works for me,
https://run.dlang.io/is/KxY0e9 doesn't.
Thanks peopl
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