Re: The difference between the dates in years
On Saturday, 10 February 2024 at 18:12:07 UTC, Alexander Zhirov
wrote:
On Saturday, 10 February 2024 at 16:03:32 UTC, H. S. Teoh wrote:
On Sat, Feb 10, 2024 at 03:53:09PM +, Alexander Zhirov via
Digitalmars-d-learn wrote:
Is it possible to calculate the difference between dates in
years using regular means? Something like that
```
writeln(Date(1999, 3, 1).diffMonths(Date(1999, 1, 1)));
```
At the same time, keep in mind that the month and day matter,
because the difference between the year, taking into account
the month that has not come, will be less.
My abilities are not yet enough to figure it out more
elegantly.
IIRC you can just subtract two DateTime's to get a Duration
that you can then convert into whatever units you want. Only
thing is, in this case conversion to months may not work
because months don't have a fixed duration (they can vary from
28 days to 31 days) so there is no "correct" way of computing
it, you need to program it yourself according to the exact
calculation you want.
T
I did it this way, but there will be an inaccuracy, since
somewhere there may be 366 days, and somewhere 365
```
auto d = cast(Date)Clock.currTime() -
Date.fromISOExtString("2001-02-01");
writeln(d.total!"days"().to!int / 365);
```
```
int getDiffYears(string date) {
auto currentDate = cast(Date)Clock.currTime();
auto startDate = Date.fromISOExtString(date);
auto currentDay = currentDate.dayOfYear;
auto startDay = startDate.dayOfYear;
auto currentMonth = currentDate.month;
auto startMonth = startDate.month;
auto diffDays = currentDate - startDate;
auto diffYears = diffDays.total!"days"().to!int / 365;
return currentMonth >= startMonth && currentDay >= startDay ?
diffYears : diffYears - 1;
}
```
Re: The difference between the dates in years
On Saturday, 10 February 2024 at 16:03:32 UTC, H. S. Teoh wrote:
On Sat, Feb 10, 2024 at 03:53:09PM +, Alexander Zhirov via
Digitalmars-d-learn wrote:
Is it possible to calculate the difference between dates in
years using regular means? Something like that
```
writeln(Date(1999, 3, 1).diffMonths(Date(1999, 1, 1)));
```
At the same time, keep in mind that the month and day matter,
because the difference between the year, taking into account
the month that has not come, will be less.
My abilities are not yet enough to figure it out more
elegantly.
IIRC you can just subtract two DateTime's to get a Duration
that you can then convert into whatever units you want. Only
thing is, in this case conversion to months may not work
because months don't have a fixed duration (they can vary from
28 days to 31 days) so there is no "correct" way of computing
it, you need to program it yourself according to the exact
calculation you want.
T
I did it this way, but there will be an inaccuracy, since
somewhere there may be 366 days, and somewhere 365
```
auto d = cast(Date)Clock.currTime() -
Date.fromISOExtString("2001-02-01");
writeln(d.total!"days"().to!int / 365);
```
The difference between the dates in years
Is it possible to calculate the difference between dates in years using regular means? Something like that ``` writeln(Date(1999, 3, 1).diffMonths(Date(1999, 1, 1))); ``` At the same time, keep in mind that the month and day matter, because the difference between the year, taking into account the month that has not come, will be less. My abilities are not yet enough to figure it out more elegantly.
Re: Vibe D: Get access to files
In the files, dt specified the path to the files from the root `/style.css` and now, with any path from the root, files are loaded into the page, instead of `style.css`. My mistake.
Re: How to get the client's MAC address in Vibe
On Thursday, 8 February 2024 at 01:05:57 UTC, Mengu wrote: On Wednesday, 7 February 2024 at 22:16:54 UTC, Alexander Zhirov wrote: Is there a way to identify a client by MAC address when using the Vibe library? The `NetworkAddress` [structure](https://vibed.org/api/vibe.core.net/NetworkAddress) does not provide such features. Or did I miss something? That doesn't have anything to do with the server side if I am not mistaken as you should receive that via the browser that actually allows you to receive the mac address -via an extension- or some private API exposed by the browser. I don't know the use case but you may be better off with browser fingerprinting if you'd like to have a unique way of identifying the visitors. Or, if it's a local network, maybe you can use tcpdump/libpcap. It is at the packet level to monitor the address. Not at all what I would like. Thanks for the tip:)
Re: How to get the client's MAC address in Vibe
On Thursday, 8 February 2024 at 14:21:13 UTC, Steven Schveighoffer wrote: On Wednesday, 7 February 2024 at 22:16:54 UTC, Alexander Zhirov wrote: Is there a way to identify a client by MAC address when using the Vibe library? The `NetworkAddress` [structure](https://vibed.org/api/vibe.core.net/NetworkAddress) does not provide such features. Or did I miss something? Mac is a hardware address. By the time the packets get to your server, that info is long gone. Even if you could get it, it likely is the MAC address of your router, not the peer. -Steve You are right, information is lost at the packet level and nothing reaches the browser anymore. I will look for another way. Thanks!
How to get the client's MAC address in Vibe
Is there a way to identify a client by MAC address when using the Vibe library? The `NetworkAddress` [structure](https://vibed.org/api/vibe.core.net/NetworkAddress) does not provide such features. Or did I miss something?
Re: Search for the dialog library
On Sunday, 15 October 2023 at 21:46:44 UTC, Dmitry Ponyatov wrote: Maybe it's time to port the old warm tubby Turbo Vision into the glorious D lang? https://github.com/magiblot/tvision Since there was a conversation about the implementation of the wrapper, it is easier to write a wrapper for the `dialog` library, in fact, which is probably what I will do. I'll share a link here a little later. If anyone wants to help, it will be very cool! I think this library can be useful to many people.
Search for the dialog library
Colleagues, tell me, please, is there any library on D for drawing [dialog](https://invisible-island.net/dialog/images/dialog.png) boxes using the dialog library, like in Python [pythondialog](https://pypi.org/project/pythondialog/)?
Re: Redirecting standard streams in Windows
On Wednesday, 19 July 2023 at 00:13:04 UTC, Adam D Ruppe wrote: How does the cat program know what the encoding of the file is? Try opening it in notepad or something and specifying the encoding. I betcha it is perfectly fine. Strange. Everything works correctly on the command line. And the file redirection works and `2>&1` works. But in PowerShell it gives errors. Moreover, PowerShell reacts to `FILE_TYPE_PIPE`, and CMD reacts to `FILE_TYPE_DISK`.
Re: Redirecting standard streams in Windows
On Tuesday, 18 July 2023 at 22:09:40 UTC, Adam D Ruppe wrote:
You need to use WriteFile when it is redirected, which you can
detect with GetFileType to see if it is a character device or
not.
The redirection issue has been resolved. Another one has now
emerged. Since I have unicode, I need to write 2 bytes each,
which is exactly what happens. In this regard, incorrect output
to the file. How to convert it otherwise? Or does it not depend
on the output?
```d
import core.sys.windows.windows;
import std.stdio;
import std.utf;
void main() {
wstring str = "Это тестовый текст";
HANDLE h_stderr = GetStdHandle(STD_ERROR_HANDLE);
switch (GetFileType(h_stderr)) {
case FILE_TYPE_CHAR:
WriteConsoleW(h_stderr, str.ptr,
cast(DWORD)str.length, NULL, NULL);
break;
case FILE_TYPE_PIPE:
auto utf_str = str.toUTF8;
WriteFile(h_stderr, utf_str.ptr,
cast(DWORD)utf_str.length, NULL, NULL);
break;
default:
}
}
```
output:
```sh
PS C:\dlang\test> dmd.exe .\app.d
PS C:\dlang\test> .\app.exe
Это тестовый текст
PS C:\dlang\test> .\app.exe 2> .\stderr.txt
PS C:\dlang\test> cat .\stderr.txt
.\app.exe : ╨н╤В╨╛ ╤В╨╡╤Б╤В╨╛╨▓╤Л╨╣ ╤В╨╡╨║╤Б╤В
строка:1 знак:1
+ .\app.exe 2> .\stderr.txt
+ ~
+ CategoryInfo : NotSpecified: (╨н╤В╨╛
╤В╨╡╤Б╤В╨╛╨▓╤Л╨╣ ╤В╨╡╨║╤Б╤В:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
```
Re: Redirecting standard streams in Windows
On Tuesday, 18 July 2023 at 22:12:17 UTC, Alexander Zhirov wrote: with threads streams*
Re: Redirecting standard streams in Windows
On Tuesday, 18 July 2023 at 22:09:40 UTC, Adam D Ruppe wrote: On Tuesday, 18 July 2023 at 21:31:54 UTC, Alexander Zhirov wrote: HANDLE h_stdout = GetStdHandle(STD_OUTPUT_HANDLE); WriteConsoleW(h_stderr, str.ptr, cast(DWORD)str.length, NULL, NULL); If you checked the return value of this call, you'd find it fails since WriteConsole only works if the output is, in fact, a console. You need to use WriteFile when it is redirected, which you can detect with GetFileType to see if it is a character device or not. Just found [this](https://stackoverflow.com/questions/45805785/why-cant-i-redirect-output-from-writeconsole) on the net. Hmm... I didn't know that Windows has its own nuances in working with threads. Thanks for the tip.
Redirecting standard streams in Windows
I'm trying to redirect unicode in the windows console, but when
redirecting, empty files are created. If i do it without
redirects, then the text is displayed correctly in the console:
```d
import core.sys.windows.windows;
import std.stdio;
void main() {
wstring str = "Just text...";
HANDLE h_stderr = GetStdHandle(STD_ERROR_HANDLE);
HANDLE h_stdout = GetStdHandle(STD_OUTPUT_HANDLE);
WriteConsoleW(h_stderr, str.ptr, cast(DWORD)str.length, NULL,
NULL);
WriteConsoleW(h_stdout, str.ptr, cast(DWORD)str.length, NULL,
NULL);
}
```
```sh
.\app.exe 1> stdout.txt 2> stderr.txt
```
Re: Initializing an associative array into a variable when it is created
On Sunday, 16 July 2023 at 11:16:55 UTC, Danilo wrote:
Would a static constructor be okay? This way the static data
is not initialized at every `new` and object creation is faster.
Alternatively, i can think about your proposal. At the moment, I
have solved my problem using the following method:
```d
@property string[][string] arr() {
return [
"one": ["abc", "def"],
"two": ["ghi", "jkl"],
"three": ["mno", "pqr"]
];
}
```
I don't know how true it will be considered. After all, the
function creates an array every time it is called, which is not
correct.
Re: Initializing an associative array into a variable when it is created
On Saturday, 15 July 2023 at 23:34:22 UTC, Danilo wrote: Works fine, if you add a semicolon at the end. I'm sorry. I didn't put the question quite correctly. Yes, this is how the array is initialized. I'm trying to describe it all in a class. I.e. I need to create a variable in the class that will be initialized when creating an object. I understand that it needs to be described in the constructor. But is there really no other way to immediately point a static array to a variable?
Initializing an associative array into a variable when it is created
I still don't understand how to make this entry correct. I have a static array that I want to use exactly as an array (the structure doesn't quite fit): ```d string[][string] arr = [ "one": ["abc", "def"], "two": ["ghi", "jkl"], "three": ["mno", "pqr"] ] ``` There are the same number of elements everywhere (in the internal array).
Re: Logging logs in Windows
On Tuesday, 18 April 2023 at 12:08:35 UTC, Richard (Rikki) Andrew Cattermole wrote: Sounds like a simple case of not linking against the right library: https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-reporteventa Library Advapi32.lib DLL Advapi32.dll Should be as simple as adding advapi32 to your libs directive. Yes, you were right, it helped. [I will know that there is a footnote at the bottom with a description](https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-reporteventa#requirements)
Re: Logging logs in Windows
On Saturday, 4 February 2023 at 14:48:55 UTC, Richard (Rikki)
Andrew Cattermole wrote:
I.e. here are my functions for syslog and Windows Event log (I
won't copy it all, it won't be helpful & the file log function
is giant compared).
```d
void syslog() {
version (Posix) {
import core.sys.posix.syslog : syslog;
syslog(prioritySyslogForLevels[level],
unsafeTextMessageComposite.ptr);
}
}
void windowsEvents() {
version (Windows) {
import core.sys.windows.windows :
ReportEventA, WORD, DWORD, EVENTLOG_INFORMATION_TYPE,
EVENTLOG_WARNING_TYPE,
EVENTLOG_ERROR_TYPE;
static WORD[] WTypes = [
EVENTLOG_INFORMATION_TYPE,
EVENTLOG_INFORMATION_TYPE, EVENTLOG_WARNING_TYPE,
EVENTLOG_ERROR_TYPE,
EVENTLOG_ERROR_TYPE, EVENTLOG_ERROR_TYPE
];
static DWORD[] dwEventID = [0, 0, 0, 0, 0,
0];
const(char)*[2] messages = [
ModuleLine2.ptr,
cast(char*)unsafeTextMessageComposite.ptr +
unsafeDateTime.length + ModuleLine.length
];
ReportEventA(windowsEventHandle,
WTypes[level], 0, dwEventID[level], cast(void*)null, 2, 0,
[0], cast(void*)null);
}
}
```
Note: you also need to setup an event source on Windows i.e.
```d
import core.sys.windows.windows : RegisterEventSourceA;
windowsEventHandle = RegisterEventSourceA(null,
cast(char*)processName.ptr);
```
and to close it:
```d
import core.sys.windows.windows : DeregisterEventSource;
DeregisterEventSource(windowsEventHandle);
```
I tried to make a simple recording, but when compiling, he swears
at linking.
```d
import core.sys.windows.windows;
void writeToEventLog(LPCSTR pszSrcName, LPCSTR message) {
HANDLE hEventLog = RegisterEventSourceA(NULL, pszSrcName);
ReportEventA(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL, 1,
0, , NULL);
DeregisterEventSource(hEventLog);
}
void main() {
writeToEventLog("test", "This is test message");
}
```
```ps
PS C:\sources\d-journals> dub
Starting Performing "debug" build using
C:\D\dmd2\windows\bin64\dmd.exe for x86_64.
Building d-journals ~master: building configuration
[application]
Linking d-journals
lld-link: error: undefined symbol: RegisterEventSourceA
referenced by C:\sources\d-journals\source\app.d:4
C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)
lld-link: error: undefined symbol: ReportEventA
referenced by C:\sources\d-journals\source\app.d:5
C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)
lld-link: error: undefined symbol: DeregisterEventSource
referenced by C:\sources\d-journals\source\app.d:6
C:\Users\alexander\AppData\Local\dub\cache\d-journals\~master\build\application-debug-windows-x86_64-dmd_v2.102.0-dirty-92393AAC9FC80DD3A486D7D072118EACA853FFECDE2EEAA8920EDA92F0620E60\d-journals.obj:(_D3app15writeToEventLogFPxaQdZv)
Error: linker exited with status 1
Error C:\D\dmd2\windows\bin64\dmd.exe failed with exit code 1.
```
What could I have missed?
undefined reference to "main"
How to compile the example given in the book correctly? When
compiling, an error occurs that the main function is missing. If
I replace `shared static this()` with `void main()', then
everything starts. What does the compilation string in `dub` and
`dmd` look like correctly?
```d
import vibe.d;
shared static this()
{
auto settings = new HTTPServerSettings;
settings.port = 8080;
settings.bindAddresses = ["::1", "127.0.0.1"];
listenHTTP(settings, );
logInfo("Please open http://127.0.0.1:8080/ in your browser.");
}
void hello(HTTPServerRequest req, HTTPServerResponse res)
{
res.writeBody("Hello, World!");
}
```
Re: Convert binary to UUID from LDAP
On Tuesday, 28 March 2023 at 13:18:59 UTC, Kagamin wrote: This guid is (int,short,short,byte[8]) in little endian byte order. So if you want to convert it to big endian, you'll need to swap bytes in those int and two shorts. ``` ubyte[] guid=... int* g1=cast(int*)guid.ptr; *g1=bswap(*g1); ``` Yes, therefore, my option remains more correct rather than directly converting to UUID, since it does not correspond to the value specified in LDAP. Therefore, it is necessary to do byte permutations.
Re: Convert binary to UUID from LDAP
On Tuesday, 28 March 2023 at 08:15:03 UTC, Alexander Zhirov wrote: So far it has been possible to convert like this The idea was borrowed from [here](https://elixirforum.com/t/using-active-directory-guid-with-ecto-uuid-field/15904).
Re: Convert binary to UUID from LDAP
On Tuesday, 28 March 2023 at 05:26:08 UTC, Alexander Zhirov wrote:
When converting to HEX, I get the string
`121F4C264DED5E41A33F445B0A1CAE32`, in which some values are
reversed. I found ways on the Internet to transform the
permutation method into the desired result, but most likely it
will be a crutch rather than the right solution to lead to the
final result `264c1f12-ed4d-415e-a33f-445b0a1cae32`.
So far it has been possible to convert like this
```d
{
writeln(value.attributes["objectGUID"][0].toUUID);
}
UUID toUUID(const char[] objectGUID)
{
if(objectGUID.length != 16)
throw new Exception("objectGUID does not match the
length");
auto arr = (cast(ubyte[])objectGUID).array;
auto part1 = arr[0 .. 4].reverse;
auto part2 = arr[4 .. 6].reverse;
auto part3 = arr[6 .. 8].reverse;
auto part4 = arr[8 .. 10];
auto part5 = arr[10 .. $];
string hex =
toHexString(part1) ~ '-' ~
toHexString(part2) ~ '-' ~
toHexString(part3) ~ '-' ~
toHexString(part4) ~ '-' ~
toHexString(part5);
return cast(UUID)hex;
}
```
Re: Convert binary to UUID from LDAP
On Monday, 27 March 2023 at 18:39:19 UTC, Alexander Zhirov wrote: I mean get the UUID data type itself. Just using [this example](https://dlang.org/phobos/std_uuid.html#.UUID) `cast(ubyte[16])ubyte[]` will not work, conversion error. ```d writeln(toHexString(cast(ubyte[])value.attributes["objectGUID"][0])); ``` When converting to HEX, I get the string `121F4C264DED5E41A33F445B0A1CAE32`, in which some values are reversed. I found ways on the Internet to transform the permutation method into the desired result, but most likely it will be a crutch rather than the right solution to lead to the final result `264c1f12-ed4d-415e-a33f-445b0a1cae32`.
Re: Convert binary to UUID from LDAP
On Tuesday, 28 March 2023 at 00:51:43 UTC, Steven Schveighoffer wrote: auto uuid = UUID(*cast(ubyte[16]*)youruuiddata.ptr); ```d ubyte[] arr = cast(ubyte[])value.attributes["objectGUID"][0].dup; writeln(UUID(cast(ubyte[16])arr.ptr)); ``` `Error: cannot cast expression 'cast(ubyte*)arr' of type 'ubyte*' to 'ubyte[16]'` No, it's not possible to transform. The array is initially `immutable(char[])`.
Re: Convert binary to UUID from LDAP
On Monday, 27 March 2023 at 18:33:46 UTC, novice2 wrote:
https://run.dlang.io/is/JP01aZ
```
void main(){
import std.stdio: writeln;
import std.format: format;
ubyte[] a = [159, 199, 22, 163, 13, 74, 145, 73, 158,
112, 7, 192, 12, 193, 7, 194];
string b = format("%(%.2X%)",a);
writeln(b);
}
```
Yes, the same result. I probably didn't write my post quite
correctly. I mean get the UUID data type itself. Just using [this
example](https://dlang.org/phobos/std_uuid.html#.UUID)
`cast(ubyte[16])ubyte[]` will not work, conversion error.
Convert binary to UUID from LDAP
I get `objectGUID` data from LDAP as binary data. I need to convert `ubyte[]` data into a readable `UUID`. As far as I understand, it is possible to do this via `toHexString()`, but I have reached a dead end. Is there a way to make it more elegant, like [this technique](https://dlang.org/phobos/std_uuid.html#.UUID)? ``` ubyte[] => [159, 199, 22, 163, 13, 74, 145, 73, 158, 112, 7, 192, 12, 193, 7, 194] hex => 9FC716A30D4A91499E7007C00CC107C2 ```
Re: Implicit type conversion depending on assignment
On Friday, 24 March 2023 at 09:46:26 UTC, Jacob Shtokolov wrote: BTW, you can also `alias this` your struct value and then use `std.conv : to` for casting, if you don't need specific casting rules. I don't quite understand what you mean? Could you show me an example?
Re: Implicit type conversion depending on assignment
On Thursday, 23 March 2023 at 14:36:11 UTC, Alexander Zhirov wrote: I wanted WITHOUT explicit casting. I also have thoughts about using [templates](https://dlang.org/spec/template.html#this_rtti), but I don't have enough experience yet how to implement it.
Re: Implicit type conversion depending on assignment
On Thursday, 23 March 2023 at 14:19:31 UTC, user1234 wrote:
omg, let's rewrite this...
I meant something like that. But you can't do that. I wanted
WITHOUT explicit casting.
```d
struct MyVal
{
private string value;
@property auto toString(T)()
{
return value.to!T;
}
alias toString this;
}
auto a = MyVal("100");
auto b = MyVal("11.2");
int myInt = a;
float myFloat = b;
```
Re: Implicit type conversion depending on assignment
On Thursday, 23 March 2023 at 13:38:51 UTC, Alexander Zhirov
wrote:
Is it possible to convert such records inside the structure to
the assigned type?
```d
struct MyVal
{
string value;
// Here it would be possible to use an alias to this, but
it can only be used 1 time
}
auto a = MyVal("100");
auto b = MyVal("11.2");
int MyInt = a;// Implicitly convert to target type
float myFloat = b;// Implicitly convert to target type
```
Here is an [example from the
documentation](https://dlang.org/spec/struct.html#alias-this),
but for "several" types, for example, with a cast check and a
return of the default value.
Implicit type conversion depending on assignment
Is it possible to convert such records inside the structure to
the assigned type?
```d
struct MyVal
{
string value;
// Here it would be possible to use an alias to this, but it
can only be used 1 time
}
auto a = MyVal("100");
auto b = MyVal("11.2");
int MyInt = a;// Implicitly convert to target type
float myFloat = b;// Implicitly convert to target type
```
Re: Formatted date
On Wednesday, 22 March 2023 at 17:53:39 UTC, Steven Schveighoffer wrote: D's datetime intentionally does not tackle formatting -- it's a huge undertaking. There is an option on code.dlang.org: https://code.dlang.org/packages/datefmt -Steve I'll try it tomorrow, thanks!
Formatted date
Tell me, how can I use such a date conversion mechanism? I didn't find [something](https://www.php.net/manual/en/datetime.format.php) similar on the forum. Convert date from received time ``` Clock.currTime().toSimpleString() ``` So that i can get a more readable look: `2023-Mar-22 16:53:42.2507395` => `2023.03.22 16:53:42`
Re: Sort Associative Array by Key
foo.byPair .array .sort!((a, b) => a.key < b.key) .map!(a => a.value); Is it possible to specify in `map` to return the result `[a.key] = a.value`? To make the result look like `[key:[val], key:[val]]`
Re: Comparison of multidimensional associative arrays
On Wednesday, 8 February 2023 at 19:32:22 UTC, Ali Çehreli wrote: This should do it: [...] Yes, it works! I'll try it tomorrow on a large array of data. Thank you very much! This turns out to be a simple loop with a comparison of the existence of a key (whether it is included in an array or not) and a comparison of an existing array as a value with another array by this key. I wonder if can add this to lambda? In one line.
Re: Comparison of multidimensional associative arrays
On Wednesday, 8 February 2023 at 18:57:00 UTC, Anonymouse wrote: Can you explain how you determine how/if two entries are different? I apologize. I have not written, in fact, what I need to get. Array `A` ```d [ 4:["id":"4", "deleted":"f", "name":"6.2"], 3:["id":"3", "deleted":"f", "name":"5.6_hwlister"], 2:["id":"2", "deleted":"t", "name":"6.2"], 1:["id":"1", "deleted":"f", "name":"5.6"] ] ``` Array `B` ```d [ 6:["id":"6", "deleted":"f", "name":"6.2_test"], 5:["id":"5", "deleted":"f", "name":"5.6_test"], 4:["id":"4", "deleted":"f", "name":"6.2_hwlister"], 3:["id":"3", "deleted":"f", "name":"5.6_hwlister"], 2:["id":"2", "deleted":"f", "name":"6.2"], 1:["id":"1", "deleted":"f", "name":"5.6"] ] ``` Diff: ```d [ 6:["id":"6", "deleted":"f", "name":"6.2_test"], 5:["id":"5", "deleted":"f", "name":"5.6_test"], 4:["id":"4", "deleted":"f", "name":"6.2_hwlister"], 2:["id":"2", "deleted":"f", "name":"6.2"] ] ``` That is, the result is arrays of table B that are missing OR not equal to arrays in table A.
Re: Comparison of multidimensional associative arrays
On Wednesday, 8 February 2023 at 18:08:40 UTC, Ali Çehreli wrote: Just because this sounds complicated, I hope the data structure can be designed differently to be more friendly to this operation. (?) Ali This is the result of an SQL query. Roughly speaking, I need to compare the result of queries from two different databases and find different ones. The tables are the same, the only difference is in the content.
Comparison of multidimensional associative arrays
Not an easy task for me, maybe you can advise your compact solution. There are two associative arrays of type `string[string][int]`. It is necessary to find the differences and return them when comparing: ```d [ 6:["id":"6", "deleted":"f", "name":"6.2_test"], 5:["id":"5", "deleted":"f", "name":"5.6_test"], 4:["id":"4", "deleted":"f", "name":"6.2_hwlister"], 3:["id":"3", "deleted":"f", "name":"5.6_hwlister"], 2:["id":"2", "deleted":"f", "name":"6.2"], 1:["id":"1", "deleted":"f", "name":"5.6"] ] [ 4:["id":"4", "deleted":"f", "name":"6.2_hwlister"], 3:["id":"3", "deleted":"f", "name":"5.6_hwlister"], 2:["id":"2", "deleted":"f", "name":"6.2"], 1:["id":"1", "deleted":"f", "name":"5.6"] ] ```
Re: compile: link dynamic OR static library in Windows
On Monday, 6 February 2023 at 08:23:37 UTC, Richard (Rikki) Andrew Cattermole wrote: [...] Yes, your solution works. I apologize for my inattention. I should have checked earlier in your way. Most likely Adam has a [problem](https://github.com/adamdruppe/arsd/issues/364) with linking in the library.
Re: compile: link dynamic OR static library in Windows
On Monday, 6 February 2023 at 06:59:09 UTC, Richard (Rikki) Andrew Cattermole wrote: On other platforms the -Lfile I think would work. On Windows you have to link against the import library not DLL directly. You can pass it to the compiler: $ dmd -i "-L/LIBPATH:C:\Program Files\PostgreSQL\15\lib" pq.lib app.d Should work. Sorry, I should have revisted this from the get go, rather than just tinkering with what others were posting. It doesn't work anyway... Is it possible to collect all this from under mingw so that the linker is not Microsoft, but `ld'?
Re: compile: link dynamic OR static library in Windows
On Monday, 6 February 2023 at 05:45:35 UTC, Richard (Rikki) Andrew Cattermole wrote: Ah doh, MSVC link doesn't use -L. $ dmd -i "-L/LIBPATH:C:\Program Files\PostgreSQL\15\lib" -Llpq app.d I think that is the option you want. Worst case scenario just copy the files to your working directory and it should find it without the additional search path. He doesn't want to anyway. I have already put the library in the source code folder. But it still pulls up the `*.obj` format for some reason. ```sh C:\sources\pxe-restore\source>ls app.d app.obj arsd azh libpq.lib pkg C:\sources\pxe-restore\source>dmd -i "-L/LIBPATH:C:\Program Files\PostgreSQL\15\lib" -Llpq app.d LINK : fatal error LNK1181: не удается открыть входной файл "lpq.obj" Error: linker exited with status 1181 C:\sources\pxe-restore\source>dmd -i "-L/LIBPATH:C:\sources\pxe-restore\source" -Llpq app.d LINK : fatal error LNK1181: не удается открыть входной файл "lpq.obj" Error: linker exited with status 1181 ```
Re: compile: link dynamic OR static library in Windows
On Monday, 6 February 2023 at 05:20:33 UTC, Richard (Rikki) Andrew Cattermole wrote: Source files go after flags. $ dmd -i -L'-LC:\Program Files\PostgreSQL\15\lib' -Llpq app.d For some reason, the `obj` file is link instead of the library. ```sh C:\sources\pxe-restore\source>dmd -L'-LC:\Program\ Files\PostgreSQL\15\lib' -Llpq -i app.d Error: cannot find input file `Files\PostgreSQL\15\lib'.d` import path[0] = C:\D\dmd2\windows\bin64\..\..\src\phobos import path[1] = C:\D\dmd2\windows\bin64\..\..\src\druntime\import C:\sources\pxe-restore\source>dmd -L'-L"C:\Program\ Files\PostgreSQL\15\lib"' -Llpq -i app.d LINK : fatal error LNK1104: не удается открыть файл "'-LC:\Program\ Files\PostgreSQL\15\lib'.obj" Error: linker exited with status 1104 ```
Re: compile: link dynamic OR static library in Windows
On Sunday, 5 February 2023 at 13:37:16 UTC, user1234 wrote: try ``` dmd -i app.d -L'-LC:\Program Files\PostgreSQL\15\lib' -Llpq ``` the first linker command gives a search path, the second a libname. It doesn't work ```sh C:\sources\pxe-restore\source>dmd -i app.d -L'-LC:\Program Files\PostgreSQL\15\lib' -Llpq Error: cannot find input file `Files\PostgreSQL\15\lib'.d` import path[0] = C:\D\dmd2\windows\bin64\..\..\src\phobos import path[1] = C:\D\dmd2\windows\bin64\..\..\src\druntime\import C:\sources\pxe-restore\source>dmd -i app.d -L'-L"C:\Program Files\PostgreSQL\15\lib"' LINK : fatal error LNK1104: не удается открыть файл "'-LC:\Program Files\PostgreSQL\15\lib'.obj" Error: linker exited with status 1104 C:\sources\pxe-restore\source>dmd -i app.d -L-L'C:\Program Files\PostgreSQL\15\lib' Error: cannot find input file `Files\PostgreSQL\15\lib'.d` import path[0] = C:\D\dmd2\windows\bin64\..\..\src\phobos import path[1] = C:\D\dmd2\windows\bin64\..\..\src\druntime\import ```
Re: compile: link dynamic OR static library in Windows
On Saturday, 4 February 2023 at 15:56:41 UTC, Richard (Rikki) Andrew Cattermole wrote: On Windows you don't link directly against a DLL. You link against a static library (.lib) of the same name. The binding doesn't change between a static library and a shared library as long as you're linking during the compilation sequence and not during runtime. I don't understand why the compiler doesn't see the library. ```sh User@WIN-D3SHRBHN7F6 MINGW64 /home/user/pxe-restore/source # ls -la "C:\Program Files\PostgreSQL\15\lib\libpq.lib" -rw-r--r-- 1 User Отсутствует 37002 Nov 9 06:45 'C:\Program Files\PostgreSQL\15\lib\libpq.lib' User@WIN-D3SHRBHN7F6 MINGW64 /home/user/pxe-restore/source # dmd -i app.d -L'C:\Program Files\PostgreSQL\15\lib\libpq.lib' lld-link: error: could not open 'pq.lib': no such file or directory Error: linker exited with status 1 ```
Re: compile: link dynamic OR static library in Windows
On Saturday, 4 February 2023 at 17:02:11 UTC, Ferhat Kurtulmuş wrote: On Windows, dub's default behavior is to search for "foo.lib", usually compiled with Visual Studio C/C++ compilers. However, you have mingw-compiled "libfoo.a". I would not use MinGW-compiled libs with d compilers. I don't know how d compilers improved to support it, but in the past, I experienced ABI compatibility issues with d and MinGW. I can't link to the library `*.a` and I don't understand why? ```sh PS C:\sources\pxe-restore\source> dmd -i app.d C:\msys64\home\user\postgresql-15.1\installed\mingw64\lib\libpq.a Error: unrecognized file extension a ``` Is there any way to convert the library `dll` to `lib`? Without using Visual Studio? On Saturday, 4 February 2023 at 17:02:11 UTC, Ferhat Kurtulmuş wrote: you will also need definitions of the functions in your d code like `extern(C) void fooDB();`. I am not sure how [importC](https://dlang.org/spec/importc.html) is usable with PostgreSQL. In addition, there are some bindings in the dub registry https://code.dlang.org/search?q=PostgreSQL. At this stage, everything is fine. I'm using a project that I build on Linux without any problems. All connections are set up there.
compile: link dynamic OR static library in Windows
I have never programmed in Windows, so I don't quite understand how to link the library correctly. I have a compiled Postgres library from under mingw. There is both a static library `*.a` and a dynamic library `*.dll`. I don't understand how to compile my project correctly at all. I tried to do everything through dub first.json, then I realized that the idea was too rash and decided to compile a simple project through the CLI. In the end , here 's what happened: ```sh PS C:\sources\pxe-restore\source> dmd -i app.d -LC:\msys64\home\user\postgresql-15.1\installed\mingw64\lib\libpq.dll lld-link: error: C:\msys64\home\user\postgresql-15.1\installed\mingw64\lib\libpq.dll: bad file type. Did you specify a DLL instead of an import library? lld-link: error: could not open 'pq.lib': no such file or directory Error: linker exited with status 1 ``` After Googling a bit, I came across [this page](https://wiki.dlang.org/Win32_DLLs_in_D#Using_a_D_class_from_a_DLL). Do I really need to rewrite the header of the Postgres library to use it in my project? Do I need to list all the functions called from the library? Or is there a way to somehow attach it in a more civilized way through a simple `dmd`?
Re: Logging logs in Windows
On Saturday, 4 February 2023 at 14:48:55 UTC, Richard (Rikki) Andrew Cattermole wrote: I.e. here are my functions for syslog and Windows Event log I'll try to check. Thank you very much!
Re: Logging logs in Windows
On Friday, 3 February 2023 at 18:02:59 UTC, Richard (Rikki) Andrew Cattermole wrote: Here is a starting point that I myself have used in the past: I understand that programming under Windows is a shame for a programmer, but is there really no ready-made solution for using the system log in Windows?
Re: Logging logs in Windows
On Friday, 3 February 2023 at 16:00:55 UTC, Richard (Rikki) Andrew Cattermole wrote: Yes syslog is not available on Windows as that is a Posix API. All of your calls to syslog should be guarded by a version for Posix. Is there an analogue for Windows? And is it possible to implement it with the similarity of directives, as in C?
Logging logs in Windows
I wrote a small utility in Linux. I want to build it for Windows.
He swears at some parts of the code like this:
```powershell
C:\sources\pxe-restore>dub build -b release
Starting Performing "release" build using dmd for x86_64.
Building pxe-restore ~master: building configuration
[application]
source\azh\log.d(3,8): Error: module `core.sys.posix.syslog`
import `syslog` not found
source\azh\query.d(7,8): Error: module `core.sys.posix.syslog`
import `LOG_NOTICE` not found
source\azh\query.d(7,8): Error: module `core.sys.posix.syslog`
import `LOG_ERR` not found
source\azh\query.d(7,8): Error: module `core.sys.posix.syslog`
import `LOG_INFO` not found
source\azh\query.d(7,8): Error: module `core.sys.posix.syslog`
import `LOG_WARNING` not found
source\app.d(12,8): Error: module `core.sys.posix.syslog` import
`LOG_NOTICE` not found
source\app.d(12,8): Error: module `core.sys.posix.syslog` import
`LOG_ERR` not found
source\app.d(12,8): Error: module `core.sys.posix.syslog` import
`LOG_INFO` not found
source\app.d(12,8): Error: module `core.sys.posix.syslog` import
`LOG_WARNING` not found
Error dmd failed with exit code 1.
```
A small fragment of the code used:
```d
...
import core.sys.posix.syslog : LOG_NOTICE, LOG_ERR, LOG_INFO,
LOG_WARNING;
import core.sys.posix.syslog : syslog;
...
void log(int priority, string message)
{
syslog(priority, (message ~ "\0").ptr);
}
...
```
Re: Get the class name without casting the type
On Tuesday, 15 November 2022 at 14:26:22 UTC, Imperatorn wrote: Side-note, you don't override interface members, you implement them. My knowledge of D is still modest, most likely, I just didn't know that override with interfaces can not be used. Thanks for the hint!
Re: Get the class name without casting the type
On Tuesday, 15 November 2022 at 14:09:01 UTC, bauss wrote: If you cast to Object and use classinfo.name then you get the expected result of B. Thanks!
Re: Get the class name without casting the type
On Tuesday, 15 November 2022 at 12:25:22 UTC, Hipreme wrote: You can do it as `val.classinfo.name` Yes, I have already done so, but the result is the same, actually :) ```d app.A: It's ok! app.A: It's ok! app.A: It's ok! ```
Get the class name without casting the type
Is there any way to get the name of class B?
```d
interface A {
string text();
}
class B : A {
override string text() {
return ": It's ok!";
}
}
void main() {
A[] a = cast(A[]) new B[3];
B b = new B();
fill(a, b);
foreach (val ; a) {
writeln(typeof(val).stringof, val.text());
}
}
```
Output:
```sh
A: It's ok!
A: It's ok!
A: It's ok!
```
Re: Removing an element from an array
On Friday, 11 November 2022 at 05:36:37 UTC, Alexander Zhirov wrote: On Friday, 11 November 2022 at 00:02:09 UTC, Alexander Zhirov wrote: ```d import std.algorithm; arr = arr.remove(arr.countUntil(fragment)); ``` And will this method work? ```d A[] arr; A fragment = new A; ... remove(current => current == fragment)(arr); ``` And it will be even more accurate so as not to cause an error: ```d A[] arr; A fragment = new A; ... arr = remove(current => current == fragment)(arr); ```
Re: Removing an element from an array
On Friday, 11 November 2022 at 00:02:09 UTC, Alexander Zhirov wrote: ```d import std.algorithm; arr = arr.remove(arr.countUntil(fragment)); ``` And will this method work? ```d A[] arr; A fragment = new A; ... remove(current => current == fragment)(arr); ```
Re: Removing an element from an array
On Thursday, 10 November 2022 at 23:36:29 UTC, H. S. Teoh wrote: On Thu, Nov 10, 2022 at 11:26:45PM +, Alexander Zhirov via Digitalmars-d-learn wrote: I have an array of self-written class `A`. I'm sorry for my tactlessness, but I'm confused about the modules. How do I correctly find a specific object `fragment` inside the array and delete it? I don't quite understand which modules to use to do this optimally. ```d A[] arr; A fragment = new A; ... arr.remove(fragment); // Something like ``` I would do something like this: // Warning: untested code import std.algorithm; arr = arr.remove(arr.countUntil(fragment)); T As always - simple and compact. Thank you:)
Removing an element from an array
I have an array of self-written class `A`. I'm sorry for my
tactlessness, but I'm confused about the modules. How do I
correctly find a specific object `fragment` inside the array and
delete it? I don't quite understand which modules to use to do
this optimally.
```d
A[] arr;
A fragment = new A;
...
arr.remove(fragment); // Something like
```
In the pros, I would do it this way, for example via lambda
```c++
arr.erase(std::find_if(arr.cbegin(), arr.cend(), [&](const
std::reference_wrapper )
{
return () ==
}));
```
Re: Passing a string by reference
On Tuesday, 8 November 2022 at 13:05:09 UTC, Ali Çehreli wrote: Yes. Classes are reference types in D. Class variables are implemented as pointers. Their default value is null. Ali Thanks!
Re: Passing a string by reference
Thanks for answers! On Tuesday, 8 November 2022 at 12:43:47 UTC, Adam D Ruppe wrote: You should almost never use `ref string`. Just use plain `string`. So it's always working with thick pointers? nope, an object isn't created there at all. you should use `new C`. If I create just `A c`, then is it an empty pointer?
Passing a string by reference
Do I understand correctly that in order for me to pass a string
when creating an object, I must pass it by value? And if I have a
variable containing a string, can I pass it by reference?
Should I always do constructor overloading for a type and a
reference to it?
In the case of the variable `c`, a drop occurs. Why? An object is
not being created on the stack?
```d
import std.stdio : writeln;
class A
{
private string str = "base";
this(ref string str)
{
writeln("type reference string");
this.str = str;
}
this(string str)
{
writeln("type string");
this.str = str;
}
this() {}
void print()
{
writeln(str);
}
}
void main()
{
auto a = new A("Hello, World!"); // this type string
a.print();
string text = "New string";
auto b = new A(text); // this type reference string
b.print();
A c;
c.print(); // segmentation fault! Why not "base"?
}
```
Re: Write binary data as a file
On Tuesday, 2 August 2022 at 15:30:13 UTC, Adam D Ruppe wrote: On Tuesday, 2 August 2022 at 11:10:27 UTC, Alexander Zhirov wrote: As a result, I get only a set of text data. my database layer is doing to!string(that_ubyte) which is wrong. gonna see about pushing a fix It's decided! After the fix, everything works! Thank you very much!
Write binary data as a file
I'm trying to write a mechanism for writing and reading from
Postgres.
Using the Adama D. Ruppe library. I write data to Postgres in the
form of this code:
```d
ubyte[] bytes = cast(ubyte[])read("myFile");
PostgresResult resultQuery = cast(PostgresResult)
db.query("insert into amts.t_client_xrdp_settings (pid_client,
settings_file) values (?, ?)", id, bytes);
assert(resultQuery !is null);
```
Data appears in the database. Now I'm trying to do the reverse
process. Get data from Postgres and create a file:
```d
auto result = db.query("select tcxs.settings_file as dbfile from
amts.t_client_xrdp_settings tcxs where tcxs.pid_client = ?", id);
ubyte[] bytes = cast(ubyte[])result.front()["dbfile"];
write("newFile", bytes);
```
As a result, I get only a set of text data.
I am sure that my mechanism lacks refinement. It remains only to
find out which one.
Re: Build for i586
On Thursday, 28 July 2022 at 06:01:17 UTC, Alexander Zhirov wrote: I did a topic a [little earlier](https://forum.dlang.org/thread/hfzsnagofrnlmynyz...@forum.dlang.org) about compiling a compiler for processor Geode LX800. The bottom line is that I have a processor on which I want to compile the program, is an i586 architecture. Yes, I did it! I have an `i686` host with a `GCC 5.3.0` compiler. The build path is `/root/source`. 1. Using `GCC 5.3.0`, I built `GCC 9.5.0` in an `i686` environment ```sh mkdir /root/source/gcc && cd /root/source/gcc wget https://ftp.mpi-inf.mpg.de/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/releases/gcc-9.5.0/gcc-9.5.0.tar.gz tar xf gcc-9.5.0.tar.gz -C source cd source ./contrib/download_prerequisites mkdir /root/source/gcc/build && cd /root/source/gcc/build ../source/configure --prefix=$PWD/../install --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++ make -j16 make install ``` 2. Using `GCC 9.5.0`, I built `LLVM 10.0.1` in an `i686` environment ```sh mkdir /root/source/llvm && cd /root/source/llvm wget https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/llvm-project-10.0.1.tar.xz tar xf llvm-project-10.0.1.tar.xz -C source mkdir /root/source/llvm/build && cd /root/source/llvm/build export CC=/root/source/gcc/install/bin/gcc export CXX=/root/source/gcc/gcc-install/bin/g++ cmake ../source -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/../install -DLLVM_TARGETS_TO_BUILD='X86' -DCOMPILER_RT_INCLUDE_TESTS=OFF -DLLVM_INCLUDE_TESTS=OFF make -j16 make install ``` 3. Downloaded the `DMD 2.086.1` compiler (since this version runs on the `Geode LX800` processor without any problems) 4. Copied all this to an external HDD and connected it to my `Geode LX800 i586` 5. Using `GCC 9.5.0`, `LLVM 10.0.1` and `DMD 2.086.1`, I built `LDC 2.100.1` on `Geode LX800 i586` ```sh mkdir -p ~/ldc/build && cd ~/ldc git clone --recursive https://github.com/ldc-developers/ldc.git source cd build export PATH=:$PATH cmake ../source -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/../install -DLLVM_ROOT_DIR= -DD_COMPILER= make make install ``` 6. Then, through `ldc-build-runtime`, I rebuilt the libraries for `i586` ```sh ldc-build-runtime --dFlags="-mcpu=i586" --cFlags="-march=i586" ``` When performing the actions, I may have connected the necessary paths to `LD_LIBRARY_PATH` (I don't remember ). Now `LDC` with the flag `-mcpu=i586` compiles the binaries I need at the output and the architecture fully supports them! ```sh ~ # ldc2 --version LDC - the LLVM D compiler (1.30.0-git-32f5a35): based on DMD v2.100.1 and LLVM 10.0.1 built with DMD32 D Compiler v2.086.1 Default target: i686-pc-linux-gnu Host CPU: geode http://dlang.org - http://wiki.dlang.org/LDC Registered Targets: x86- 32-bit X86: Pentium-Pro and above x86-64 - 64-bit X86: EM64T and AMD64 ``` Thank you so much for your help! **As a result, the reassembly of the `runtime` and `phobos` libraries helped. Would it be cool to figure out how to rebuild the `DMD` library for `i586`?**
Re: Build for i586
On Thursday, 28 July 2022 at 16:02:11 UTC, kdevel wrote: On Thursday, 28 July 2022 at 15:25:00 UTC, Alexander Zhirov wrote: On Thursday, 28 July 2022 at 13:16:26 UTC, kdevel wrote: On Thursday, 28 July 2022 at 12:45:51 UTC, Alexander Zhirov wrote: [...] I have already downloaded the latest GCC sources, nothing compiles anyway. How did you manage to get hold of this compiler? ``` /root/usr/program/gcc/9.5.0/install/bin/cc ``` Where does this compiler come from? This is an unpacked archive from an official source from the GNU website https://ftp.mpi-inf.mpg.de/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/releases/gcc-9.5.0/
Re: Build for i586
On Thursday, 28 July 2022 at 13:16:26 UTC, kdevel wrote: On Thursday, 28 July 2022 at 12:45:51 UTC, Alexander Zhirov wrote: [...] I have already downloaded the latest GCC sources, nothing compiles anyway. How did you manage to get hold of this compiler? ``` /root/usr/program/gcc/9.5.0/install/bin/cc ``` Everything falls on the same error. ```sh checking for suffix of object files... configure: error: in `/home/thinstation/source/gcc/12.1.0/build/i586-pc-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details Have you looked into config.log? The errors are frequently located in the second half of the output. In general, nothing happened. I've already tried everything. Here is the result, posted [here](https://pastebin.com/76gnneKZ).
Re: Build for i586
On Thursday, 28 July 2022 at 11:40:09 UTC, kdevel wrote: On Thursday, 28 July 2022 at 10:39:06 UTC, Alexander Zhirov wrote: [...] I don't understand what I need to do. You wrote At first I thought that I needed to rebuild the GCC compiler for the i586 architecture. I downloaded GCC 9.5.0 and started the installation: Then you wrote that this process failed. In your next post you quoted some code from the shell: ``` # /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldrun time-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 -march=geode # ./app Illegal instruction ``` I read this as if you eventually succeeded in compiling your GCC 9.5.0. If you repeat that build but use the switch ``` --with-arch-32=pentium3 ``` in the configure command your generated GCC 9.5.0 will compile 32-Bit code for the pentium3. I mean instead of ``` # ../source/configure --prefix=$PWD/../install_i586 --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,d --target=i586-pc-linux-gnu --disable-multilib --with-multilib-list=m32 ``` type ``` # ../source/configure --prefix=$PWD/../install_i586 --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,d --target=i586-pc-linux-gnu --disable-multilib --with-multilib-list=m32 --with-arch-32=pentium3 ``` I have already downloaded the latest GCC sources, nothing compiles anyway. Everything falls on the same error. ```sh checking for suffix of object files... configure: error: in `/home/thinstation/source/gcc/12.1.0/build/i586-pc-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details make[1]: *** [Makefile:16026: configure-target-libgcc] Error 1 make[1]: *** Waiting for unfinished jobs ```
Re: Build for i586
On Thursday, 28 July 2022 at 10:26:36 UTC, kdevel wrote: On Thursday, 28 July 2022 at 06:12:49 UTC, Alexander Zhirov wrote: On Thursday, 28 July 2022 at 06:01:17 UTC, Alexander Zhirov wrote: ```sh /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldruntime-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 ``` So you eventually built GCC 9.5.0? I have used the ``` --with-arch-32=pentium3 ``` option in the configure step for compiling GCC 12.1.0. The build gdc generates codes which successfully runs on my Pentium III. The only thing I did (but it still didn't work) was I [built](https://wiki.dlang.org/Building_under_Posix#Building_DMD) a `dmd` compiler: ```sh root@host ~/program # dmd --version DMD32 D Compiler v2.100.1-3-g76e3b4137 Copyright (C) 1999-2022 by The D Language Foundation, All Rights Reserved written by Walter Bright root@host ~/program # dmd -mcpu=native app.d -v predefs DigitalMars LittleEndian D_Version2 all Posix ELFv1 linux CRuntime_Glibc CppRuntime_Gcc D_InlineAsm D_InlineAsm_X86 X86 D_PIC assert D_PreConditions D_PostConditions D_Invariants D_ModuleInfo D_Exceptions D_TypeInfo D_HardFloat binarydmd version v2.100.1-3-g76e3b4137 config/root/usr/program/dmd/2.100.1/usr/bin/dmd.conf DFLAGS -I/root/usr/program/dmd/2.100.1/usr/bin/../include/dmd/druntime/import -I/root/usr/program/dmd/2.100.1/usr/bin/../include/dmd/phobos -L-L/root/usr/program/dmd/2.100.1/usr/bin/../lib -L--export-dynamic -fPIC parse app importall app importobject (/root/usr/program/dmd/2.100.1/usr/bin/../include/dmd/druntime/import/object.d) ... function std.typecons.Tuple!(uint, "data", uint, "count").Tuple.opCmp!(const(Tuple!(uint, "data", uint, "count"))).opCmp cc app.o -o app -m32 -Xlinker --export-dynamic -L/root/usr/program/dmd/2.100.1/usr/bin/../lib -Xlinker -Bstatic -lphobos2 -Xlinker -Bdynamic -lpthread -lm -lrt -ldl root@host ~/program # ./app Illegal instruction ```
Re: Build for i586
On Thursday, 28 July 2022 at 10:26:36 UTC, kdevel wrote: On Thursday, 28 July 2022 at 06:12:49 UTC, Alexander Zhirov wrote: On Thursday, 28 July 2022 at 06:01:17 UTC, Alexander Zhirov wrote: ```sh /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldruntime-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 ``` So you eventually built GCC 9.5.0? I have used the ``` --with-arch-32=pentium3 ``` option in the configure step for compiling GCC 12.1.0. The build gdc generates codes which successfully runs on my Pentium III. I don't understand what I need to do.
Re: Build for i586
On Thursday, 28 July 2022 at 07:16:13 UTC, user1234 wrote: that would be something like `--mcpu=i686 --mattrs=-mmx,-sse` and maybe more to be sure. Fails... ```sh # ldc2 --mcpu=i686 --mattr=-mmx,-sse app.d # ./app Illegal instruction ```
Re: Build for i586
On Thursday, 28 July 2022 at 06:01:17 UTC, Alexander Zhirov wrote: ```sh /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldruntime-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 ``` Even tried with such a flag separately, it still doesn't work: ```sh # /root/usr/program/gcc/9.5.0/install/bin/cc app.o -o app -L/root/usr/program/ldc/1.30/install/lib -lphobos2-ldc -ldrun time-ldc -Wl,--gc-sections -lrt -ldl -lpthread -lm -m32 -march=geode # ./app Illegal instruction ``` I also tried with `i586` and `pentium` - the result is the same.
Build for i586
I did a topic a [little earlier](https://forum.dlang.org/thread/hfzsnagofrnlmynyz...@forum.dlang.org) about compiling a compiler for processor Geode LX800. The bottom line is that I have a processor on which I want to compile the program, is an i586 architecture. The [official documentation](https://www.amd.com/system/files/TechDocs/33234H_LX_databook.pdf) says that "*... the core is a combination of Intel Pentium ® processor, AMD Athlon™ processor, and AMD Geode LX processor specific instructions.*" - this means that the processor architecture is **<** `i686`. And judging by the fact that Linux gives a description when calling `uname`: ```sh # uname -m i586 ``` This suggests that the processor is CLEARLY `i586`. The problem is that I can't assemble the software I need for this processor, since it is automatically assembled for `i686`. What have I done? I built an `ldc` compiler on this machine: ```sh # ldc2 --version LDC - the LLVM D compiler (1.30.0-git-32f5a35): based on DMD v2.100.1 and LLVM 10.0.1 built with DMD32 D Compiler v2.086.1 Default target: i686-pc-linux-gnu Host CPU: geode http://dlang.org - http://wiki.dlang.org/LDC Registered Targets: x86- 32-bit X86: Pentium-Pro and above x86-64 - 64-bit X86: EM64T and AMD64 ``` And when I try to compile the program through it, I create a binary file, but when I start it outputs **Illegal instruction**: ```sh # ldc2 app.d # ./app Illegal instruction ``` Here's using the `mcpu` flag: ```sh # ldc2 --mcpu=i586 app.d -v binary/mnt/disc/sdb/part1/program/ldc/1.30/install/bin/ldc2 version 1.30.0-git-32f5a35 (DMD v2.100.1, LLVM 10.0.1) config /mnt/disc/sdb/part1/program/ldc/1.30/install/etc/ldc2.conf (i686-pc-linux-gnu) predefs LDC all D_Version2 assert D_PreConditions D_PostConditions D_Invariants D_ModuleInfo D_Exceptions D_TypeInfo X86 D_InlineAsm_X86 D_HardFloat LittleEndian D_PIC linux Posix CRuntime_Glibc CppRuntime_Gcc LDC_LLVM_1000 parse app importall app importobject (/root/usr/program/ldc/1.30/install/include/d/object.d) importcore.attribute (/root/usr/program/ldc/1.30/install/include/d/core/attribute.d) importldc.attributes (/root/usr/program/ldc/1.30/install/include/d/ldc/attributes.d) importcore.internal.hash (/root/usr/program/ldc/1.30/install/include/d/core/internal/hash.d) importcore.internal.traits (/root/usr/program/ldc/1.30/install/include/d/core/internal/traits.d) importcore.internal.entrypoint (/root/usr/program/ldc/1.30/install/include/d/core/internal/entrypoint.d) importcore.internal.array.appending (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/appending.d) importcore.internal.array.comparison (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/comparison.d) importcore.internal.array.equality (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/equality.d) importcore.internal.array.casting (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/casting.d) importcore.internal.array.concatenation (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/concatenation.d) importcore.internal.array.construction (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/construction.d) importcore.internal.array.capacity (/root/usr/program/ldc/1.30/install/include/d/core/internal/array/capacity.d) importcore.internal.dassert (/root/usr/program/ldc/1.30/install/include/d/core/internal/dassert.d) importcore.atomic (/root/usr/program/ldc/1.30/install/include/d/core/atomic.d) importcore.internal.attributes (/root/usr/program/ldc/1.30/install/include/d/core/internal/attributes.d) importcore.internal.atomic (/root/usr/program/ldc/1.30/install/include/d/core/internal/atomic.d) importldc.intrinsics (/root/usr/program/ldc/1.30/install/include/d/ldc/intrinsics.di) importcore.internal.destruction (/root/usr/program/ldc/1.30/install/include/d/core/internal/destruction.d) importcore.internal.moving (/root/usr/program/ldc/1.30/install/include/d/core/internal/moving.d) importcore.internal.postblit (/root/usr/program/ldc/1.30/install/include/d/core/internal/postblit.d) importcore.internal.switch_ (/root/usr/program/ldc/1.30/install/include/d/core/internal/switch_.d) importcore.lifetime (/root/usr/program/ldc/1.30/install/include/d/core/lifetime.d) importcore.builtins (/root/usr/program/ldc/1.30/install/include/d/core/builtins.d) semantic app entry main app.d semantic2 app semantic3 app importstd.stdio (/root/usr/program/ldc/1.30/install/include/d/std/stdio.d) importcore.stdc.stddef (/root/usr/program/ldc/1.30/install/include/d/core/stdc/stddef.d) importstd.algorithm.mutation (/root/usr/program/ldc/1.30/install/include/d/std/algorithm/mutation.d) importstd.traits (/root/usr/program/ldc/1.30/install/include/d/std/traits.d) import
Re: Choosing the correct compiler version
On Thursday, 21 July 2022 at 05:44:41 UTC, Alexander Zhirov wrote: I will report on the successes a little later. Result: I downloaded and unpacked the binary version of the `dmd` compiler version [2.097.2](http://downloads.dlang.org/releases/2021/dmd.2.097.2.linux.tar.xz), which runs without problems with my `glibc` set. Then I compiled the `GCC` compiler version 9.5.0 from the source code: ```sh wget https://ftp.mpi-inf.mpg.de/mirrors/gnu/mirror/gcc.gnu.org/pub/gcc/releases/gcc-9.5.0/gcc-9.5.0.tar.gz mkdir build-gcc && cd build-gcc ../gcc-9.5.0/configure --prefix=$PWD/../install-gcc --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++ make -j16 make install ``` Then I built `LLVM` using this compiler, according to the instructions on the [LDC website](https://wiki.dlang.org/Building_LDC_from_source#Building_LLVM_from_source): ```sh export CC=/root/source/gcc/gcc-install/bin/gcc export CXX=/root/source/gcc/gcc-install/bin/g++ mkdir build-llvm && cd build-llvm cmake ../llvm-10.0.1.src -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/../install-llvm -DLLVM_BINUTILS_INCDIR=/usr/include -DLLVM_TARGETS_TO_BUILD='X86' -DCOMPILER_RT_INCLUDE_TESTS=OFF -DLLVM_INCLUDE_TESTS=OFF make -j16 make install ``` And then I built the `ldc` compiler myself, also according to the instructions on the [website](https://wiki.dlang.org/Building_LDC_from_source#Building_LDC_from_source): ```sh git clone --recursive https://github.com/ldc-developers/ldc.git mkdir build-ldc && cd build-ldc cmake ../ldc -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/../install-ldc -DLLVM_ROOT_DIR= -DD_COMPILER= make -j16 make install ``` As a result, I built the `ldc` compiler for my `x32` machine: ```sh # ldc2 --version LDC - the LLVM D compiler (1.30.0): based on DMD v2.100.1 and LLVM 10.0.1 built with DMD32 D Compiler v2.097.2 Default target: i686-pc-linux-gnu Host CPU: broadwell http://dlang.org - http://wiki.dlang.org/LDC Registered Targets: x86- 32-bit X86: Pentium-Pro and above x86-64 - 64-bit X86: EM64T and AMD64 ``` I hope my guide will be useful to someone who will face the same task. Thank you for your help!
Re: Choosing the correct compiler version
On Tuesday, 19 July 2022 at 23:19:28 UTC, jfondren wrote: Finding an old version that works on your machine will be very easy, but for example the random 2016 build that I grabbed was also too old to build dmd master, so you want to prefer a newer build that still works. It's not necessary to build dmd master though: in the worst case, you should be able check out interim releases (look at 'git tag --list', then 'git checkout v2.094.0' for example), build those, then used them to build a newer release. Yes, you were right! I managed to launch the 2020 version. Now I'm trying to build `ldc2`. I will report on the successes a little later. Thanks!
Re: Choosing the correct compiler version
On Tuesday, 19 July 2022 at 15:28:44 UTC, Alexander Zhirov wrote: I'm trying to install dmd with my hands in order to build ldc2 from the sources, but I can't: I need to build a compiler under x32 in order to compile a program for the same machine. ```sh dmd2/src/dmd# make -f posix.mak posix.mak:42: = DEPRECATION NOTICE = posix.mak:43: = DEPRECATION: posix.mak is deprecated. Please use src/build.d instead. posix.mak:44: == dmd -of../generated/build -g build.d dmd: /lib/libc.so.6: version `GLIBC_2.28' not found (required by dmd) posix.mak:111: recipe for target '../generated/build' failed make: *** [../generated/build] Error 1 ```
Choosing the correct compiler version
Hello everyone I want to install the `ldc2` compiler on a specific machine `i586`: ```sh ~ $ strings /lib/libc.so.6 | grep GLIBC GLIBC_2.0 GLIBC_2.1 GLIBC_2.1.1 GLIBC_2.1.2 GLIBC_2.1.3 GLIBC_2.2 GLIBC_2.2.1 GLIBC_2.2.2 GLIBC_2.2.3 GLIBC_2.2.4 GLIBC_2.2.6 GLIBC_2.3 GLIBC_2.3.2 GLIBC_2.3.3 GLIBC_2.3.4 GLIBC_2.4 GLIBC_2.5 GLIBC_2.6 GLIBC_2.7 GLIBC_2.8 GLIBC_2.9 GLIBC_2.10 GLIBC_2.11 GLIBC_2.12 GLIBC_2.13 GLIBC_2.14 GLIBC_2.15 GLIBC_2.16 GLIBC_2.17 GLIBC_2.18 GLIBC_2.22 GLIBC_2.23 GLIBC_PRIVATE ``` I'm trying to install dmd with my hands in order to build ldc2 from the sources, but I can't: ```sh ~ $ dmd --version dmd: /lib/libc.so.6: version `GLIBC_2.28' not found (required by dmd) ``` Please tell me which version for the current configuration I can use?
Execute the Shell command and continue executing the algorithm
I want to run a command in the background during the execution of
the algorithm, and without waiting for its actual execution,
because it is "infinite", while continuing the execution of the
algorithm and then, knowing the ID of the previously launched
command, kill the process. So far I have done so:
```d
// Here a long program is launched, as an example `sleep`
executeShell("(sleep 1 && echo \"SLEEP\" >> log) &");
while (!interrupted)
{
// some algorithm is executed here, for example `echo`
executeShell("(echo \"OK\" >> log) &");
if (here is my condition termination of the program)
{
// Here is the termination of the running program
}
Thread.sleep(1.seconds);
}
```
How to organize such an algorithm correctly?
Why is the compiled file size so huge?
I'm trying to compile a file that weighs 3 kilobytes. I'm also linking a self-written dynamic library. I don't understand why the resulting executable file is so huge? After all, all libraries are present: ```sh -rwxr-xr-x 1 root root 6.3M May 27 13:39 app -rw-r--r-- 1 root root 2.9K May 27 12:57 app.d -rw-r--r-- 1 root root 25K May 27 13:39 app.o ``` ```sh ldc2 -O app.d -L-lpq -L-lX11 -L-lXrandr -L-lm -L-lmira ``` ```sh linux-vdso.so.1 (0x7fff3a5bf000) libpq.so.5 => /usr/lib/libpq.so.5 (0x7fe89f8a7000) libX11.so.6 => /usr/lib/libX11.so.6 (0x7fe89f763000) libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x7fe89f756000) libm.so.6 => /lib/libm.so.6 (0x7fe89f611000) libmira.so => /usr/lib/libmira.so (0x7fe89f4c7000) libpthread.so.0 => /lib/libpthread.so.0 (0x7fe89f4a6000) librt.so.1 => /lib/librt.so.1 (0x7fe89f499000) libdl.so.2 => /lib/libdl.so.2 (0x7fe89f493000) libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7fe89f479000) libc.so.6 => /lib/libc.so.6 (0x7fe89f2af000) /lib64/ld-linux-x86-64.so.2 => /lib/ld-linux-x86-64.so.2 (0x7fe89f91b000) libxcb.so.1 => /usr/lib/libxcb.so.1 (0x7fe89f284000) libXau.so.6 => /usr/lib/libXau.so.6 (0x7fe89f27f000) libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x7fe89f275000) libbsd.so.0 => /usr/lib/libbsd.so.0 (0x7fe89f25c000) libXext.so.6 => /usr/lib/libXext.so.6 (0x7fe89f247000) libXrender.so.1 => /usr/lib/libXrender.so.1 (0x7fe89f23a000) libphobos2-ldc-shared.so.99 => /root/dlang/ldc-1.29.0/bin/../lib/libphobos2-ldc-shared.so.99 (0x7fe89ed89000) libdruntime-ldc-shared.so.99 => /root/dlang/ldc-1.29.0/bin/../lib/libdruntime-ldc-shared.so.99 (0x7fe89ec3b000) (dmd-2.100.0) ```
Re: Sleep in a cycle
My schoolboy mistake. Thank you, [Adam](https://forum.dlang.org/post/mbbampewwcrkkltjl...@forum.dlang.org)! On Saturday, 21 May 2022 at 11:17:04 UTC, Alain De Vos wrote: Or you could capture a sigint and close the file then. Yes, exactly, I was thinking in this direction. Probably not quite correctly implemented in practice.
Sleep in a cycle
I have a loop spinning, I want to pause in it in order to repeat
the next iteration. An error is displayed during compilation.
```d
import std.stdio;
import modules.monitors; //my module
import core.thread;
int main(string[] args)
{
string path = "mswitch.log";
if (args.length > 1)
{
path = args[1];
}
auto file = File(path, "w");
auto monitors = getMonitorsInfo();
file.writeln(monitors);
while (true)
{
setPrimaryMonitor(monitors[1].name);
file.writeln("-- Switch monitors --");
swapMonitors(monitors[0].name, monitors[1].name,
Relation.right_of);
monitors = getMonitorsInfo();
file.writeln(monitors);
Thread.sleep(dur!("seconds")(10));
}
file.close();
return 0;
}
```
Result build:
```sh
$ dub
Performing "debug" build using /usr/bin/ldc2 for x86_64.
mswitch ~master: building configuration "application"...
Running pre-build commands...
source/app.d(32,5): Warning: statement is not reachable
source/app.d(34,5): Warning: statement is not reachable
source/app.d(32,5): Warning: statement is not reachable
source/app.d(34,5): Warning: statement is not reachable
Error: warnings are treated as errors
Use -wi if you wish to treat warnings only as
informational.
/usr/bin/ldc2 failed with exit code 1.
```
Is there any way to pause to slow down the cycle?
Re: Including C sources in a DUB project
On Wednesday, 11 May 2022 at 05:11:10 UTC, Alexander Zhirov wrote: dub.settings.json It's written about it [here](https://dub.pm/settings)
Re: Including C sources in a DUB project
On Tuesday, 10 May 2022 at 22:12:52 UTC, Dennis wrote:
It depends on whether your DMD or LDC installation comes first
in your PATH environment variable. Both ship with a `dub`
executable that uses their compiler as default.
I came across something else like this. Created a
`dub.settings.json` file in the dub project, but still requires
`dmd`:
```sh
$ dub
Performing "debug" build using dmd for x86_64.
app ~master: building configuration "application"...
Running pre-build commands...
Error: unrecognized switch '-Os'
run `dmd` to print the compiler manual
run `dmd -man` to open browser on manual
dmd failed with exit code 1.
```
*dub.settings.json*:
```js
{
"defaultArchitecture": "x86_64",
"defaultCompiler": "ldc"
}
```
Re: Including C sources in a DUB project
On Tuesday, 10 May 2022 at 19:13:21 UTC, Dennis wrote: It has an example directory: https://github.com/dlang/dub/tree/master/examples And if there are two compilers in the system - `dmd` and `ldc`, which compiler chooses `dub.json`? And how do I specify the specific compiler I want?
Re: Including C sources in a DUB project
On Friday, 6 May 2022 at 11:31:27 UTC, Alexander Zhirov wrote:
Does anyone have examples of such a configuration?
I managed to do it like this:
```js
{
"name": "app",
"authors": [
"Alexander Zhirov"
],
"description": "MyProgram",
"dflags": [
"-i"
],
"libs": [
"pq"
],
"preBuildCommands": [
"gcc -Os -c c/*.c -o obj/ip_addresses.o"
],
"sourceFiles": [
"obj/*.o"
]
}
```
Re: Including C sources in a DUB project
On Thursday, 5 May 2022 at 06:05:55 UTC, Alexander Zhirov wrote: It turns out to compile everything manually, but I would like to do it all through the dub project. Does anyone have examples of such a configuration?
Re: Using regular expressions when reading a file
On Friday, 6 May 2022 at 05:40:52 UTC, forkit wrote:
auto myTuple = line.split(" = ");
Well, only if as a strict form :)
Re: Using regular expressions when reading a file
On Thursday, 5 May 2022 at 19:19:26 UTC, Ali Çehreli wrote:
Couldn't help myself from improving. :) The following regex
works in my Linux console. No issues with '\n'. (?) It also
allows for leading and trailing spaces:
import std.regex;
import std.stdio;
import std.algorithm;
import std.array;
import std.typecons;
import std.functional;
void main() {
auto p_property = regex(r"^ *(\w+) *= *(\w+) *$");
const properties = File("settings.conf")
.byLineCopy
.map!(line => matchFirst(line, p_property))
.filter!(not!empty) // OR: .filter!(m =>
!m.empty)
.map!(m => tuple(m[1], m[2]))
.assocArray;
writeln(properties);
}
It will need to be sorted out with a fresh head. Thanks!
Re: Using regular expressions when reading a file
On Thursday, 5 May 2022 at 18:58:41 UTC, H. S. Teoh wrote: You don't have to. Just add a `$` to the end of your regex, and it should match the newline. If you put it outside the capture parentheses, it will not be included in the value. In fact, it turned out to be much easier. It was just necessary to use the `m` flag instead of the `s` flag: ```d auto p_property = regex(r"^(\w+) *= *(.+)", "m"); ```
Re: Using regular expressions when reading a file
On Thursday, 5 May 2022 at 18:15:28 UTC, H. S. Teoh wrote: auto m = matchFirst(line, p_property); Yes, it looks more attractive. Thanks! I just don't quite understand how `matchFirst` works. I seem to have read the [description](https://dlang.org/phobos/std_regex.html#Captures), but I can't understand something. And yet I have to manually remove the line break: ```sh ["host":"192.168.100.236\n", "dbname":"belpig\n", "user":"postgres", "port":"5432\n"] ```
Using regular expressions when reading a file
I want to use a configuration file with external settings. I'm
trying to use regular expressions to read the `Property = Value`
settings. I would like to do it all more beautifully. Is there
any way to get rid of the line break character? How much does
everything look "right"?
**settings.conf:**
```sh
host = 127.0.0.1
port = 5432
dbname = database
user = postgres
```
**code:**
```d
auto file = File("settings.conf", "r");
string[string] properties;
auto p_property = regex(r"^\w+ *= *.+", "s");
while (!file.eof())
{
string line = file.readln();
auto m = matchAll(line, p_property);
if (!m.empty())
{
string property = matchAll(line, regex(r"^\w+", "m")).hit;
string value = replaceAll(line, regex(r"^\w+ *= *", "m"), "");
properties[property] = value;
}
}
file.close();
writeln(properties);
```
**output:**
```sh
["host":"127.0.0.1\n", "dbname":"mydb\n", "user":"postgres",
"port":"5432\n"]
```
Re: Including C sources in a DUB project
On Thursday, 5 May 2022 at 16:23:18 UTC, H. S. Teoh wrote: I don't know how to do it using dub, but you could use pragma(lib) in one (or more) of your source files as a workaround: pragma(lib, "m"); pragma(lib, "X11"); pragma(lib, "Xrandr"); I remember a long time ago, when I first started learning D, I set up a project in dub.json so that he compiled the sources written in C, linked the necessary libraries and then assembled the project in D along with the C object files. How to do it now - I have already forgotten.
Including C sources in a DUB project
I'm sure there is such a topic on the forum, but after scrolling
through the search, I didn't find anything. The bottom line is
that I want to enable compilation of C sources in DUB and then
build the project with the connection of libraries. I would like
to see an example of such a `dub.json` project.
Enable libraries (flags) `-lm`, `-lX11`, `-lXrandr`.
```sh
{
"name" : "test",
"description" : "Test project",
"dependencies" : {
}
}
```
It turns out to compile everything manually, but I would like to
do it all through the dub project.
```sh
.
├── dub.json
└── src
├── app.d
└── main.c
```
Re: How do I get the screen resolution?
On Thursday, 28 April 2022 at 22:51:02 UTC, Christopher Katko wrote: Are you sure about that? Well, if we're talking about programming, then most likely I need to work with something like this :) https://en.wikipedia.org/wiki/Display_Data_Channel And how to do it - I can't find.
How do I get the screen resolution?
Are there any methods to get the screen resolution? On C/C++ from under X11, it is not possible to do this on the command line via SSH, since the display is not defined. And is it possible to do this somehow by means of D, pulling out the system resolution of the installed display?
Re: Library for image editing and text insertion
On Wednesday, 27 April 2022 at 17:07:54 UTC, matheus wrote: I think in the first time running any D compiler, it should blink in the terminal in Yellow/Pink or whatever color you like, and show some info like: Are you starting a new project any need some libs? Do you know about arsd? If not then go to: https://github.com/adamdruppe/arsd. :) Hahaha This is the truth! I totally agree!
Re: Library for image editing and text insertion
On Wednesday, 27 April 2022 at 16:37:21 UTC, Alexander Zhirov wrote: On Wednesday, 27 April 2022 at 16:07:53 UTC, Adam D Ruppe wrote: How small did it get? ```sh dmd: 3136896 byte ldc: 223952 byte ``` but uses libraries ldc-shared.so ```sh linux-vdso.so.1 (0x7ffef5d2d000) libphobos2-ldc-shared.so.99 => /usr/lib64/libphobos2-ldc-shared.so.99 (0x7f667e9ee000) libdruntime-ldc-shared.so.99 => /usr/lib64/libdruntime-ldc-shared.so.99 (0x7f667e8ac000) libm.so.6 => /usr/lib64/libm.so.6 (0x7f667e7c5000) libgcc_s.so.1 => /usr/lib64/libgcc_s.so.1 (0x7f667e7a9000) libc.so.6 => /usr/lib64/libc.so.6 (0x7f667e589000) /usr/lib64/ld-linux-x86-64.so.2 (0x7f667eebe000) ``` And if without using dynamic libraries, it weighs `1219776` bytes ```sh linux-vdso.so.1 (0x7ffca9ad) librt.so.1 => /lib/librt.so.1 (0x7f6240fc4000) libdl.so.2 => /lib/libdl.so.2 (0x7f6240fbe000) libpthread.so.0 => /lib/libpthread.so.0 (0x7f6240f9d000) libm.so.6 => /lib/libm.so.6 (0x7f6240e58000) libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x7f6240e3e000) libc.so.6 => /lib/libc.so.6 (0x7f6240c74000) /lib64/ld-linux-x86-64.so.2 => /lib/ld-linux-x86-64.so.2 (0x7f6240ff7000) ```
Re: Library for image editing and text insertion
On Wednesday, 27 April 2022 at 16:07:53 UTC, Adam D Ruppe wrote: How small did it get? ```sh dmd: 3136896 byte ldc: 223952 byte ``` And with my libs if you import the other ones like `arsd.png` or `arsd.jpeg` directly instead of `arsd.image` that MIGHT help trim it down by removing support for other formats. I'm not sure though, none of them are especially big but it might add up. Yes, just now, on your advice, I did so. The size has become a little smaller!
Re: Library for image editing and text insertion
On Wednesday, 27 April 2022 at 11:59:20 UTC, Bastiaan Veelo wrote: Or use LDC. Gorgeous! LDC has compressed my code at times! Thanks again to everyone for help! Special thanks to **Adam Ruppe**
Re: Library for image editing and text insertion
On Wednesday, 27 April 2022 at 08:29:27 UTC, Alexander Zhirov
wrote:
On Wednesday, 27 April 2022 at 07:42:31 UTC, Alexander Zhirov
wrote:
On Wednesday, 27 April 2022 at 00:03:25 UTC, Adam Ruppe wrote:
Sample code would be:
1) How to write to jpeg correctly?
That's how I managed to write to jpeg:
```d
writeJpeg("dst.jpg", tci);
```
Now I would like to reduce the size of the executable file and it
would be great at all!
