Re: SHA256 Signature
On Tuesday, 18 June 2024 at 06:49:24 UTC, Vahid wrote:
How can I create a SHA256 signature hash in D?
Does this do what you want?
```d
import std.digest.md;
import std.digest.sha;
import std.stdio;
void main()
{
auto key = makeDigest!SHA256();
key.put(cast(ubyte[])"çorba");
auto result = key.finish();
writeln(result.toHexString());
}
```
Re: Why is the following failing?
On Thursday, 25 January 2024 at 16:07:44 UTC, Stefan Koch wrote:
On Thursday, 25 January 2024 at 15:39:08 UTC, ryuukk_ wrote:
```D
void main()
{
char[32] id = 0;
id = "hello";
}
```
this works fine, and that is what i expect for the example
above..
Raise a bug, I'll fix it.
buna benzer bir hata https://www.oyunlaroyna.org/ sitesinde vardı
oyun sitesi gerçi ama kaynaklarından sorunu çöze bildim tam
olarak nerede kullanmak istediğinizi iletirseniz yardmıcı olurum
Re: Using .require for struct types
On Sunday, 11 September 2022 at 21:01:27 UTC, Salih Dincer wrote:
On Saturday, 10 September 2022 at 16:33:03 UTC, Erdem Demir
wrote:
I wish I could use ref DListOfA returnVal = but we can't
in D.
Can you please suggest alternatives?
I think you should try advanced update. Your flexibility and
what you can do are limited by your dreams. A couple delicious
code:
```d
import object, std.container;
struct A
{
double val;
bool isBig;
}
void main()
{
alias DListOfA = DList!A;
DListOfA returnVal;
//DListOfA[string] temp;/*
DListOfA[string] temp = [
"a": DListOfA( A(0) )
];//*/
auto a = A(6, true); // replacement element
temp.update("a", {
return DListOfA( A(0) ); // not updated: unsucceeded
but initialized
}, (ref DListOfA v) {
v = DListOfA( a ); // existing v has been replaced
returnVal = v;
assert(returnVal.front == a);
});
assert(is(typeof(temp["a"]) == DList!A));
}
```
SDB@79
I really like the possibilities of update as well but the
overhead is too much especially in this example. I am sorry to
say I found old "in" usage less complicated than that even I
think "in" is complicated. I liked the Steven's solution all this
code can be done via 2 lines only.
Re: Using .require for struct types
On Saturday, 10 September 2022 at 18:39:55 UTC, Steven Schveighoffer wrote: On 9/10/22 12:33 PM, Erdem Demir wrote: Can you please suggest alternatives? Use a pointer. ```d DListOfA *returnVal = (...); returnVal.insert(a); ``` -Steve Actually that could be answer I am seeking for I will try it.
Re: Using .require for struct types
On Saturday, 10 September 2022 at 18:38:40 UTC, Ali Çehreli wrote:
On 9/10/22 09:33, Erdem Demir wrote:
> DListOfA returnVal = temp.require("a",
DListOfA());--> I wish I
> could use ref DListOfA here
But keeping a reference to a temporary would not work because
the life of that temporary ends by the end of that expression
(practically, at the semicolon).
An option is to allocate the object dynamically with new (and
store DListOfA* in the associative array). Then the GC would
keep it alive as long its pointer was in the associative arrray.
But a better option is to just forget about it because D
already takes care of rvalues by blitting (bit-level copying)
them by default. Everything just works... :) It is not
expensive either. For example, your struct is very cheap to
copy.
But I am probably missing the reason why you want a ref there.
Perhaps there are even better options.
Ali
In the code sample I posted I need returnVal.insert(a); have an
effect on DListOfA[string] temp; but if returnVal is a rvalue
copy I can't accomplish this right?
I see your point about ref would have been assign to a temp val,
thanks for pointing out.
Why libmir has to add its own algorithm functions
As can be seen in the link below : http://mir-algorithm.libmir.org/mir_algorithm_iteration.html Libmir provides almost the same function as std. Why is benefit of doing that? Wouldn't it be better to not duplicate std stuff? Erdem
Cross product in lib mir or lubeck
Hi, I am looking for cross product function in libmir or lubeck. But I couldn't find it. Does anyone know if it exists or not? Erdem
Profiling the memory in D
I am used to have cool tools like valgrid massif to visualize the memory usage from C++ but in D it seems I am blind folded looking for the problem. Until now I tried: --vgc option which show million things which makes it not useful --build=profile-gc which seems to slow down my program like *200 times and I have some operation depending on time which makes creating the real case of the application impossible. The observation itself effect the experiment very badly. Since this options are not useful for me, I tried to put debug logs in critical places to estimate where I am losing memory. I couldn't find a D native call to get the memory usage of the program. I had to call a shell command which also slows down the app. This slow down causes me to not be able to put this debug log too many places or in critical loops. I manage to narrow it down a bit. Than I wanted to check the object instances to find out which objects are getting bigger. I tried GC.sizeOf() which always prints 0. GC.sizeOf also does not works with associative arrays , I don't see any usefull case than GC.sizeOf(array.ptr). That is the background of my questions and my questions are: Is there a better way to visualize the memory in D something like valgrid massif? profile-gc literally makes to program not do anything due to slow down is there any way to profile-gc in a faster fashion? Is there a native function which will return the memory usage of my program? Is there a function to return sizes of AAs and even class instances ? Erdemdem
Libharu D binding harud unicode support
How should one use libharu d binding in unicode mode. Consider
this basic example.
import std.stdio;
import harud;
import harud.c;
void main()
{
void errorCallback(uint error_number, uint detail_number)
{
writefln("err %x, %s, (num %x)"
, error_number
, getErrorDescription(error_number),
detail_number);
}
Doc pdf = new Doc(); /// New pdf document
Font helvetica = pdf.getFont("Helvetica");
writeln("build font");
Page page = pdf.addPage(); /// Add a new page to the document
writeln("page width:", page.width);
auto status = page.setFontAndSize(helvetica, 60); /// Set
the current font and size for the page
writeln("set font width:", 60, " status", status);
status = page.beginText(); /// Begin text mode
writeln("begin ", status);
status = page.showText("üçÇÜÖöĞğIı"); /// Print text to the
page
writeln("show ", status);
page.endText(); /// End text mode
pdf.saveToFile("./hello.pdf"); /// Write to disk
}
As you'd see I'd like to be able to write some Turkish characters
to pdf file using libharu D binding.(a.k.a. harud)
Re: Gtkd how to filter TreeView according to user input
On Tuesday, 17 January 2017 at 19:07:21 UTC, Ali Çehreli wrote:
On 01/17/2017 01:25 AM, Erdem wrote:
> void main(string[] args)
> {
> Main.init(args);
> new MyWindow();
> Main.run();
> }
I have no experience with Gtkd but the code inside main looks
fundamentally wrong. One would expect you to do something with
the MyWindow object:
auto w = new MyWindow();
And then use 'w' but I don't know how.
Ali
Thanks. The problem is already solved. You may look at this
thread:
http://ddili.org/forum/post/12453
Ben D diline biraz önce göndermiştim :)
Erdem
Gtkd how to filter TreeView according to user input
I'd like to filter Treeview data according to user input. How
should I do that?
When I run this program it gives segmentation fault error.
import gtk.Main;
import gtk.MainWindow;
import gtk.Box;
import gtk.Entry;
import gtk.EditableIF;
import gtk.TreeModelFilter;
import gtk.TreeView;
import gtk.HBox;
import gtk.VBox;
import gtk.Label;
import gtk.ListStore;
import gtk.TreeViewColumn;
import gtk.CellRendererText;
import gtk.TreeModel;
import gtk.TreeIter;
import std.conv;
import std.stdio;
class MyWindow: MainWindow
{
Box mainBox;
Entry filterEntry;
TreeModelFilter filter;
TreeIter iter;
this()
{
super("TreeView Example");
setSizeRequest(500, 200);
filterEntry = new Entry();
auto filterLabel= new Label("Artist search");
auto tree = new TreeView();
auto box = new VBox(false, 0);
auto dataModel = new ListStore([GType.STRING,
GType.STRING]);
auto artistColumn = new TreeViewColumn("Artist", new
CellRendererText(), "text", 0);
tree.appendColumn(artistColumn);
auto songColumn = new TreeViewColumn("Song title", new
CellRendererText(), "text", 1);
tree.appendColumn(songColumn);
iter = dataModel.createIter();
dataModel.setValue(iter, 0, "This is a test");
dataModel.setValue(iter, 1, "Sample song");
iter = dataModel.createIter();
dataModel.setValue(iter, 0, "This is a test");
dataModel.setValue(iter, 1, "Another song");
iter = dataModel.createIter();
dataModel.setValue(iter, 0, "Another artist");
dataModel.setValue(iter, 1, "Test song");
filter = new TreeModelFilter(dataModel, null);
filter.setVisibleFunc(cast(GtkTreeModelFilterVisibleFunc)
& filterTree, null, null);
tree.setModel(filter);
auto mainBox = new HBox(false, 0);
mainBox.packStart(filterLabel, false, false, 5);
mainBox.packStart(filterEntry, true, true, 5);
box.packStart(mainBox, false, false, 5);
box.packStart(tree, true, true, 5);
add(box);
showAll();
}
bool filterTree(GtkTreeModelFilter gtkModel, GtkTreeIter
gtkIter)
{
auto model1 = new TreeModelFilter(, false);
auto it1 = new TreeIter(, false);
string artistName = to!string(model1.getValue(it1, 0));
return true;
}
void onFilterEntryTextChanged(EditableIF filterEntry)
{
filter.refilter();
}
// void onFilterEntryTextChanged(ParamSpec param, ObjectG
object)
// {
// filter.refilter();
// }
}
void main(string[] args)
{
Main.init(args);
new MyWindow();
Main.run();
}
Re: Gtkd how to add double value to liststore
On Sunday, 15 January 2017 at 01:36:44 UTC, Ali Çehreli wrote: It looks like ListStore is a collection of 'Value's. Does the following work? setValue(iterator, 1, new Value(price)); Yes it works. Ali bey teşekkürler! :)
Gtkd how to add double value to liststore
I would like to pass some double value to ListStore's constructor
but it doesn't allows me to do.
import gtk.Main;
import gtk.MainWindow;
import gtk.Box;
import gtk.ListStore;
import gtk.TreeView;
import gtk.TreeViewColumn;
import gtk.TreeIter;
import gtk.CellRendererText;
class MyWindow: MainWindow
{
Box mainBox;
this()
{
super("Tree view exercise");
setBorderWidth(10);
mainBox = new Box(Orientation.HORIZONTAL, 0);
add(mainBox);
showAll();
}
}
class InfoModel: ListStore /* model */
{
this()
{
super([GType.STRING, GType.DOUBLE]);
}
void addGoods(string name, double price)
{
TreeIter iterator = createIter();
setValue(iterator, 0, name);
setValue(iterator, 1, price);
}
}
class DisplayModel: TreeView /* view */
{
TreeViewColumn articleColumn;
TreeViewColumn priceColumn;
this (ListStore model)
{
articleColumn = new TreeViewColumn("Article", new
CellRendererText(), "text", 0);
}
}
void main(string[] args)
{
Main.init(args);
new MyWindow();
Main.run();
}
When I try to compile this program it gives this error message:
Error: none of the overloads of 'setValue' are callable using
argument types (TreeIter, int, double), candidates are:
import/gtk/ListStore.d(273):
gtk.ListStore.ListStore.setValue(TreeIter iter, int column,
string value)
import/gtk/ListStore.d(281):
gtk.ListStore.ListStore.setValue(TreeIter iter, int column, int
value)
import/gtk/ListStore.d(569):
gtk.ListStore.ListStore.setValue(TreeIter iter, int column, Value
value)
Also is it possible to round this double to 2 decimal places when
presenting data with GtkTreeView.
Re: arsd.dom appenChild method gives assertion message
On Sunday, 11 December 2016 at 22:11:51 UTC, Adam D. Ruppe wrote:
On Sunday, 11 December 2016 at 17:52:29 UTC, Erdem wrote:
[...]
Try something like:
content.appendChild(firstElements[0].removeFromTree());
Thanks this method also works.
foreach (element; firstElements)
{
element.removeFromTree();
content.appendChild(element);
}
Re: arsd.dom appenChild method gives assertion message
Ok this seems to work as expected.
import arsd.dom;
import std.stdio;
void main()
{
auto document = new Document();
document.parseGarbage(`
Test Document1
This is the first paragraph of our href="test.html">test document.
This second paragraph also has a href="test2.html">link.
Old text
`);
auto document2 = new Document();
document2.parseGarbage(`
Test Document
Old text
`);
Element content =
document2.getElementsBySelector(`div[id="content"]`)[0];
writeln(content);
writeln();
Element[] firstElements =
document.getElementsBySelector("body")[0].children;
foreach (element; firstElements)
{
element.parentNode = null;
content.appendChild(element);
}
writeln(document2.toString());
}
arsd.dom appenChild method gives assertion message
I would like to add first documents content inside a div element
like this.
import arsd.dom;
import std.stdio;
void main()
{
auto document = new Document();
document.parseGarbage(`
Test Document1
This is the first paragraph of our href="test.html">test document.
This second paragraph also has a href="test2.html">link.
Old text
`);
auto document2 = new Document();
document2.parseGarbage(`
Test Document
Old text
`);
Element content =
document2.getElementsBySelector(`div[id="content"]`)[0];
writeln(content);
Element[] firstElements =
document.getElementsBySelector("body");
writeln (firstElements);
content.appendChild(firstElements[0]);
}
The program compiles fine. But when I try to execute it gives an
assertion error like this.
??:? _d_assert_msg [0x80cc048]
??:?
_D4arsd3dom7Element11appendChildMFC4arsd3dom7ElementZ9__requireMFZv [0x80a6f62]
??:? arsd.dom.Element
arsd.dom.Element.appendChild(arsd.dom.Element) [0x80a6df1]
??:? _Dmain [0x809f73c]
??:?
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv
[0x80cd792]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x80cd6dc]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll() [0x80cd74e]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x80cd6dc]
??:? _d_run_main [0x80cd66e]
??:? main [0x809fc93]
??:? __libc_start_main [0x129532]
How should one use appendChild or similiar methods of arsd.dom
library?
std.net.curl application throws an exception
try to compile this program from std.net.curl
import std.net.curl, std.stdio;
void main()
{
auto range1 = byLineAsync("www.google.com");
auto range2 = byLineAsync("www.wikipedia.org");
foreach (line; byLineAsync("dlang.org"))
writeln(line);
foreach (line; range1) writeln(line);
foreach (line; range2) writeln(line);
}
I compile this program like this.
$ dmd internet.d -ofinternet
or
dmd -I/usr/include/dmd/phobos -L-l:libcurl.so.4.2.0 internet.d
-ofinternet
The program compiles fine but it throws an exception.
std.concurrency.PriorityMessageException@std/concurrency.d(273):
Priority message
??:?
_D3std11concurrency10MessageBox160__T3getTDFS3std11concurrency3TidS3std3net4curl21__T11CurlMessageTAyaZ11CurlMessageZbTDFS3std11concurrency3TidS3std3net4curl19__T11CurlMessageTbZ11CurlMessageZbZ3getMFDFS3std11concurrency3TidS3std3net4curl21__T11CurlMessageTAyaZ11CurlMessageZbDFS3std11concurrency3TidS3std3net4curl19__T11CurlMessageTbZ11CurlMessageZbZ3ptyMFKS3std11concurrency36__T4ListTS3std11concurrency7MessageZ4ListZb [0x81d03f4]
??:? bool std.concurrency.MessageBox.get!(bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(immutable(char)[]).CurlMessage), bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(bool).CurlMessage)).get(bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(immutable(char)[]).CurlMessage), bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(bool).CurlMessage)) [0x81cfeed]
??:? void std.concurrency.receive!(bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(immutable(char)[]).CurlMessage), bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(bool).CurlMessage)).receive(bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(immutable(char)[]).CurlMessage), bool
delegate(std.concurrency.Tid,
std.net.curl.CurlMessage!(bool).CurlMessage)) [0x81cfd08]
??:? void
std.net.curl.AsyncLineInputRange!(char).AsyncLineInputRange.__mixin5.tryEnsureUnits() [0x81ccb87]
??:? @property bool
std.net.curl.AsyncLineInputRange!(char).AsyncLineInputRange.__mixin5.empty() [0x81cc7db]
??:? _Dmain [0x81b47b8]
??:?
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv
[0x81d9292]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x81d91dc]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll() [0x81d924e]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate()) [0x81d91dc]
??:? _d_run_main [0x81d916e]
??:? main [0x81d3393]
??:? __libc_start_main [0x129532]
I use dmd v2.072.0
