Where do you test syntax of D regexp online?
I wrote two regexp:
auto inlineCodeBlock = regex("`(.*?)`"); // --> `(.*?)`
auto bigCodeBlock = regex("/`{3}[\\s\\S]*?`{3}/g"); // -->
`{3}[\s\S]*?`{3}
First for for selection inline code block. Second for multi-line:
#Header
my header text
##SubHeader
my sub header text `foo inline code`
```
void foo()
{
writeln("ppp");
}
```
###Sub3Header
my sub 3 text `bar inline code`
#Header2
my header2 text
It's work fine in online editor https://regex101.com/r/EC5WRu/1
(sic! \\s\\S double escaped in D code).
But after compilation of code:
auto x = content.matchFirst(bigCodeBlock);
writeln(x);
print:
[]
[]
It's seems that D regexp work in another way. How can I test them?
Question about vibe.conf file
I had seen some mentions about `vibe.conf` file in vibed docs. But can't understand it's structure and find examples of it's usage.
Re: Can't rending DT template
On Sunday, 26 February 2017 at 12:31:21 UTC, Suliman wrote: It's look like wrong error, because project is buildable. So I have only one question. Can I do response not in .dt, but in .html? It's seems that serveStaticFiles is only one normal way to get it work.
Re: Can't rending DT template
It's look like wrong error, because project is buildable. So I have only one question. Can I do response not in .dt, but in .html?
Can't rending DT template
I have this code:
module pages;
import vibe.d;
import database;
import vibe.web.web;
class MyPages
{
@path("/page1") void getPage()
{
render!("home.dt");
}
}
The error: https://snag.gy/PtNeSs.jpg
Error: template instance
vibe.web.web.render!"home.dt".render!("pages",
"pages.MyPages.getPage").render.compileHTMLDietFile!("home.dt",
req, DefaultFilters).exec!(StreamOutputRange!(OutputStream))
error instantiating
What I am doing wrong? Can I output html page instead of .dt?
Re: Vibe.d: Listening to port 8080 on external device doesn't work
On Wednesday, 22 February 2017 at 00:38:30 UTC, aberba wrote: Using vibe.d, I bind to port 8080 at 127.0.0.1 but I can't access server on my phone through hotspot using the external IP from ip addr on Linux. But 127.0.0 running Apache server works. Don't if its vibe.d or OS (ubuntu 14.04) How do I reached my vibe.d server in this case on my phone? Not forget to open 8080 port of incoming connections.
Re: Multiplayer Game Project
Do you have skype? I familiar with vibed and vue.js
Static array size?
Docs says that: "The total size of a static array cannot exceed 16Mb." But when I am creation array of: int [1000_000] x; // 1000_000 is equal ~ 0,95MB app crush on start. Should it's reserve this memory with guaranty? I mean that after app start it should take +0.95MB of RAM in task manager.
Re: mysql-native: preview3 (docs)
@Nick, could you explain how connection working if I am close it after opening and only then do request to DB. See comments on SO.
Re: mysql-native: preview3 (docs)
On Monday, 6 February 2017 at 20:32:24 UTC, Nick Sabalausky wrote: https://github.com/Abscissa/mysql-native-experimental Tag: v0.2.0-preview3 Just a few doc updates this time: - Docs now include the `mysql.db.MysqlDB` to `mysql.pool.MySqlPool` change from preview2 - Clarified "Prepared" vs "PreparedImpl" - Clarified "exec" vs "query" - Rewrite the docs for ResultSet and ResultRange. New docs: http://semitwist.com/mysql-native-docs/v0.2.0-preview3 Big thanks! I am very glad that driver becoming better! I have question about DB connection pattern if you could give any advices I would be very glad http://stackoverflow.com/questions/42083976/database-connection-pattern
Re: The reason of vibed slow down (request timeout)
On Friday, 3 February 2017 at 07:44:15 UTC, crimaniak wrote: On Friday, 3 February 2017 at 06:46:37 UTC, Suliman wrote: If I open it's from VPS (as localhost:8080) it's work same as from Internet (no do not open at all). If problem is reproducible on localhost - very good, just debug it. If you have memory leak and can't figure out source, try valgrind tool - it can help. P.S. Русские комментарии в коде - плохой стиль. This tool is nix only. I checked memory footprint, and it's show that app use impossible low memory http://3.1m.yt/cCdzA.png I reread sources and still don't understand where it can be problem place.
Re: Fiber overhead
On Saturday, 4 February 2017 at 06:54:01 UTC, Ali Çehreli wrote: On 02/03/2017 08:47 PM, Profile Anaysis wrote: What is the overhead of using a fiber? The performance overhead of call() and yield() are comparable to function calls because it's simply a few register assignments in each case. (Change the stack pointer, etc.) Memory overhead is memory for call stack, size of which can be determined by the programmer. Ali Am I right understand that every yield(ed)/blocking function is delegate to processing in system thread? But what will be if our code would do a lot of blocking functions? All of them will be delegate to system threads? If how many system threads will be used? I am asking because it will look like that in system threads we will get same problem that was solved by fibers.
The reason of vibed slow down (request timeout)
I have simple web-app. Server part is based on vibed http://194.87.235.42:8080/ I can't understand the reason of issue. after some days of work when I trying to open it in web-browser it's begin opening very slooowly, or like now does not opens at all. On mobile web-browser I am getting request-timeout. How I can diagnostic the reason of such behavior? The sources code is here https://github.com/bubnenkoff/Geoportal2
Re: mysql-native: preview2
On Thursday, 2 February 2017 at 22:59:38 UTC, Nick Sabalausky wrote: On 02/02/2017 09:46 AM, Suliman wrote: Could you explain real case if rangification of ResultSet http://semitwist.com/mysql-native-docs/v0.2.0-preview1/mysql/result/ResultSet.html Does it's mean that I can write foreach(x;result.empty) ? Or how to use it? .empty just checks whether the range is empty, it returns true/false. You can't iterate over that. But yes, you can iterate over the ResultSet itself. Of course, ResultSet is random-access, so you can also index it like an array: "resultset[0]" returns the first row. But how by looking at docs I can understand what data can be iterable, and what do not?
Re: mysql-native: preview2
On Thursday, 2 February 2017 at 14:08:19 UTC, Steven Schveighoffer wrote: On 2/2/17 1:50 AM, Suliman wrote: On Thursday, 2 February 2017 at 05:28:10 UTC, Nick Sabalausky wrote: Made a couple more long-needed changes while I'm at it: https://github.com/Abscissa/mysql-native-experimental Tag: v0.2.0-preview2 - For better clarity, renamed `mysql.db.MysqlDB` to `mysql.pool.MySqlPool`. - Package mysql.connection no longer acts as a package.d, publicly importing other modules. To import all of mysql-native, use `import mysql;` Thanks! Could you explain about pool. I googled about it, and still can't understand when it up new connections? How can I imagine what connection is? Because without it hard to understand what difference between connections with and without pool. Am I right understand that if I use pool I can create connection instance one time in DB class constructor end every new connection will be created on demand? Just to answer some of this, because I had questions about the pool as well. The ConnectionPool is a mechanism to allow a limited resource (or a resource you want to limit, depending how you look at it) to be pooled for use. It's basically a free-list. It also abstracts away the details of opening a connection (i.e. server ip, username, password). It's nice because it makes opening a connection cleaner and straightforward. The resulting connection can only be used in one fiber at a time, and the connection pool itself can only be used in one thread ever (there is no sharing of connection pools between threads). The resulting connection struct is reference counted, so it automatically releases back to the pool when it goes out of scope. One issue I had with MysqlDB (now MySqlPool) is that it doesn't allow you to actually put a limit on the connections. In other words, you can't say "only allow 50 simultaneous connections". The effect is that you save the connection initialization, but you can't put a hard cap on connections used in your thread. If you have 10,000 fibers running at once, then you may get 10,000 connections to the database that are left open. If each of those is a socket, you are consuming a lot of resources during down times. Not to mention that the allocation of the 10,000th connection has to first go on a linear search through the 9,999 other connections to find an open one (this seems like it could be solved better with a linked-list freelist?). See here: https://github.com/mysql-d/mysql-native/issues/74 BTW, I solved this by copying MysqlDB into my local project and adding the appropriate parameter to the constructor :) -Steve Do you mean that every new fiber open new connection? And when fiber is yield it's return connection to the pool? Could you explain real case if rangification of ResultSet http://semitwist.com/mysql-native-docs/v0.2.0-preview1/mysql/result/ResultSet.html Does it's mean that I can write foreach(x;result.empty) ? Or how to use it?
Re: mysql-native: API Refresh RC
ResultSet querySet(Connection conn, string sql, ColumnSpecialization[] csa = null) Could you explain last parameter? `ColumnSpecialization[] csa = null`. I can't understand how to use it. Could you give me your skype? Also I think it's better to remove old deprecated methods at all, because it's add only mess.
Re: mysql-native: API Refresh RC
On Thursday, 2 February 2017 at 04:04:15 UTC, Nick Sabalausky wrote: On 02/01/2017 01:54 PM, Suliman wrote: Also I can't understand what is SQL Command and what exec is doing if it's returning ulong? "struct Command" should not be used. It is old, and a bad design. This new release attempts to replace it with a better design. Hopefully, "struct Command" will be deleted in a later release. The "exec" functions are for commands like INSERT, UPDATE, DELETE, CREATE, etc (it is *not* for SELECT). It is for things that do NOT return actual rows of data. The "exec" functions return "rows affected" - the number of rows that were affected by your INSERT, or UPDATE, etc. Usually people ignore that number, but it's information the server sends back, and is sometimes useful to some people. For example, SQL administration tools usually tell you "# rows affected" after you run an INSERT/UPDATE/etc. If you are doing a SELECT, then you do NOT use "exec", you use "query" for SELECT. "query" returns a set of rows. Summary: - SELECT: Use query() or querySet() or queryRow(), etc. INSERT/UPDATE/DELETE/CREATE/DROP: Use exec(). Return value tells you how many rows were added/changed/deleted/etc. Plz add this mention to readme.
Re: mysql-native: API Refresh RC
mydb.lockConnection() does create a new connection if it needs to. And that WILL throw an exception if there's a problem connecting to the DB server. So your code above WILL catch an exception if the connection information (server address/port/login/etc) is wrong. But it does not. I am getting Access Violation instead of the exception if connection credentials is wrong: Authentication failure: Access denied for user 'root'@'111.111.111.111' (using password: YES) object.Error@(0): Access Violation 0x004436C0 in void database.Database.connect() at D:\code\CMS\source\database.d(34) 0x00403130 in _Dmain at D:\code\CMS\source\app.d(17) 0x00593C6F in D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv 0x00593C33 in void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll() 0x00593B34 in _d_run_main 0x004433CC in main at D:\code\CMS\source\app.d(7) 0x005F0929 in mainCRTStartup 0x769262C4 in BaseThreadInitThunk 0x774D0FD9 in RtlSubscribeWnfStateChangeNotification 0x774D0FA4 in RtlSubscribeWnfStateChangeNotification Program exited with code 1
Re: mysql-native: preview2
On Thursday, 2 February 2017 at 06:50:34 UTC, Suliman wrote: On Thursday, 2 February 2017 at 05:28:10 UTC, Nick Sabalausky wrote: Made a couple more long-needed changes while I'm at it: https://github.com/Abscissa/mysql-native-experimental Tag: v0.2.0-preview2 - For better clarity, renamed `mysql.db.MysqlDB` to `mysql.pool.MySqlPool`. - Package mysql.connection no longer acts as a package.d, publicly importing other modules. To import all of mysql-native, use `import mysql;` Thanks! Could you explain about pool. I googled about it, and still can't understand when it up new connections? How can I imagine what connection is? Because without it hard to understand what difference between connections with and without pool. Am I right understand that if I use pool I can create connection instance one time in DB class constructor end every new connection will be created on demand? Ok, I read articles about pool, as I understood it's depend on of the implementation. For example method `close` in pool mode should not close connection, but return it to pool. Could you tell about your implementation. Also actual question is can I open connection in constructor (during class instance creation) ?
Re: mysql-native: preview2
On Thursday, 2 February 2017 at 05:28:10 UTC, Nick Sabalausky wrote: Made a couple more long-needed changes while I'm at it: https://github.com/Abscissa/mysql-native-experimental Tag: v0.2.0-preview2 - For better clarity, renamed `mysql.db.MysqlDB` to `mysql.pool.MySqlPool`. - Package mysql.connection no longer acts as a package.d, publicly importing other modules. To import all of mysql-native, use `import mysql;` Thanks! Could you explain about pool. I googled about it, and still can't understand when it up new connections? How can I imagine what connection is? Because without it hard to understand what difference between connections with and without pool. Am I right understand that if I use pool I can create connection instance one time in DB class constructor end every new connection will be created on demand?
Re: mysql-native: API Refresh RC
Also I can't understand what is SQL Command and what exec is doing if it's returning ulong?
Re: mysql-native: API Refresh RC
On Wednesday, 1 February 2017 at 14:06:39 UTC, Suliman wrote:
Am I right understand that Connection instance should created
at constructor and be one single for all class (and it will be
reused by fibers) or am I wrong?
If yes, where I should to close it? To put
scope(exit) c.close();
In destructor?
If yes, does it behavior should be same as for working in vibed
pool and without?
If I right understand class MysqlDB do not throw any exceptions,
So I can't understand how to handle wrong connection.
if(connection is null)
{
try // useless
{
connection = mydb.lockConnection();
}
catch(Exception e)
{
writeln(e.msg);
}
}
Re: mysql-native: API Refresh RC
Am I right understand that Connection instance should created at constructor and be one single for all class (and it will be reused by fibers) or am I wrong? If yes, where I should to close it? To put scope(exit) c.close(); In destructor? If yes, does it behavior should be same as for working in vibed pool and without?
Re: Convert struct to set of fields and pass it's to constructor
On Wednesday, 1 February 2017 at 13:51:28 UTC, Minty Fresh wrote:
On Wednesday, 1 February 2017 at 13:37:27 UTC, Suliman wrote:
Class constructor accept only set if fields like
this(string login, string pass)
Can I create structure, fill it, and than pass to constructor?
Like this:
```
import std.stdio;
struct ConnectSettings
{
string login;
string pass;
};
ConnectSettings cs;
void main()
{
cs.login = "admin";
cs.pass = "mypass";
}
```
and than pass to constructor it's like:
`... new SomeClass(cs)`
I tried, but get error, that ctor accept only fields list. Can
I unroll struct to it?
tupleof is probably what you're looking for.
ie.
new SomeClass(cs.tupleof);
That said, why not have the constructor accept the struct as a
parameter?
Because it's implemented not by me, and I do not want to touch
its realization.
Convert struct to set of fields and pass it's to constructor
Class constructor accept only set if fields like
this(string login, string pass)
Can I create structure, fill it, and than pass to constructor?
Like this:
```
import std.stdio;
struct ConnectSettings
{
string login;
string pass;
};
ConnectSettings cs;
void main()
{
cs.login = "admin";
cs.pass = "mypass";
}
```
and than pass to constructor it's like:
`... new SomeClass(cs)`
I tried, but get error, that ctor accept only fields list. Can I
unroll struct to it?
Re: Can't find the reason of issue: "std.file.FileException@std\file.d(360): path/to/file.conf:"
Not even issue, but unhandled exception when access to nonexistent file.
Re: Can't find the reason of issue: "std.file.FileException@std\file.d(360): path/to/file.conf:"
On Wednesday, 1 February 2017 at 11:39:46 UTC, Suliman wrote: Full error log: 0x00580A4D in @trusted bool std.file.cenforce!(bool).cenforce(bool, const(char)[], const(wchar)*, immutable(char)[], uint) 0x00412AB6 in @safe void[] std.file.read!(immutable(char)[]).read(immutable(char)[], uint) at C:\D\dmd2\windows\bin\..\..\src\phobos\std\file.d(229) 0x00412060 in @safe immutable(char)[] std.file.readText!(immutable(char)[], immutable(char)[]).readText(immutable(char)[]) at C:\D\dmd2\windows\bin\..\..\src\phobos\std\file.d(417) 0x004116F2 in void dini.parser.IniSection.parse(immutable(char)[], bool) at C:\Users\Dima\AppData\Roaming\dub\packages\dini-2.0.0\dini\source\dini\parser.d(318) 0x00411EB7 in dini.parser.IniSection dini.parser.IniSection.Parse(immutable(char)[], bool) at C:\Users\Dima\AppData\Roaming\dub\packages\dini-2.0.0\dini\source\dini\parser.d(497) 0x004106AF in config.MyConfig config.MyConfig.__ctor() at D:\code\CoreCMS\source\config.d(30) 0x004033EA in _Dmain at D:\code\CoreCMS\source\app.d(7) 0x0055EBFB in D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv 0x0055EBBF in void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll() 0x0055EAC0 in _d_run_main 0x0041064C in main at D:\code\CoreCMS\source\APIInterface.d(7) 0x005BA001 in mainCRTStartup 0x73FC62C4 in BaseThreadInitThunk 0x77440FD9 in RtlSubscribeWnfStateChangeNotification 0x77440FA4 in RtlSubscribeWnfStateChangeNotification Program exited with code 1 Can it be issue in external lib? Yeah, it was issue in dini 2. dini 1 work fine.
Re: Can't find the reason of issue: "std.file.FileException@std\file.d(360): path/to/file.conf:"
Full error log: 0x00580A4D in @trusted bool std.file.cenforce!(bool).cenforce(bool, const(char)[], const(wchar)*, immutable(char)[], uint) 0x00412AB6 in @safe void[] std.file.read!(immutable(char)[]).read(immutable(char)[], uint) at C:\D\dmd2\windows\bin\..\..\src\phobos\std\file.d(229) 0x00412060 in @safe immutable(char)[] std.file.readText!(immutable(char)[], immutable(char)[]).readText(immutable(char)[]) at C:\D\dmd2\windows\bin\..\..\src\phobos\std\file.d(417) 0x004116F2 in void dini.parser.IniSection.parse(immutable(char)[], bool) at C:\Users\Dima\AppData\Roaming\dub\packages\dini-2.0.0\dini\source\dini\parser.d(318) 0x00411EB7 in dini.parser.IniSection dini.parser.IniSection.Parse(immutable(char)[], bool) at C:\Users\Dima\AppData\Roaming\dub\packages\dini-2.0.0\dini\source\dini\parser.d(497) 0x004106AF in config.MyConfig config.MyConfig.__ctor() at D:\code\CoreCMS\source\config.d(30) 0x004033EA in _Dmain at D:\code\CoreCMS\source\app.d(7) 0x0055EBFB in D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv 0x0055EBBF in void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll() 0x0055EAC0 in _d_run_main 0x0041064C in main at D:\code\CoreCMS\source\APIInterface.d(7) 0x005BA001 in mainCRTStartup 0x73FC62C4 in BaseThreadInitThunk 0x77440FD9 in RtlSubscribeWnfStateChangeNotification 0x77440FA4 in RtlSubscribeWnfStateChangeNotification Program exited with code 1 Can it be issue in external lib?
Can't find the reason of issue: "std.file.FileException@std\file.d(360): path/to/file.conf:"
After building vibed project and running it I am getting error: "std.file.FileException@std\file.d(360): path/to/file.conf: Системе не удается найти указанный путь." (System can't find selected path) I even do not understand where is the error... It's do not seems that it's vibed issue.
Re: mysql-native: API Refresh RC
Plz update dub package on code.dlang.org
Re: Why fatal log throw object.Error@(0) on console?
I found in the docs mention "If data is logged with LogLevel fatal by default an Error will be thrown.". But what the reason of such behavior?
Why fatal log throw object.Error@(0) on console?
import std.stdio;
import std.experimental.logger;
void main()
{
sharedLog = new FileLogger("New_Default_Log_File.log");
fatal("Fatal error: ");
}
All other log-levels write as expected log files, but `fatal`
throw on console:
app.exe
object.Error@(0): A fatal log message was logged
0x0041291E
0x004138E7
0x0040206C
0x0040B277
0x0040B178
0x00407AB3
0x73FC62C4 in BaseThreadInitThunk
0x77440FD9 in RtlSubscribeWnfStateChangeNotification
0x77440FA4 in RtlSubscribeWnfStateChangeNotification
It's bug normal behavoiur?
When I should create structures with new keywords?
In the past I asked Adam about when I should use keyword `new`
with structures and got next answer:
"The File in the first one is put on the stack as a reference
counted
local object whereas the second one would be on the garbage
collected
heap, which often isn't what you want for files since you want to
close
them when you're done.
Generally, D's structs often work best without the `new` keyword
since
they can be made in place."
But I have read that stack size is very limited I tried to test
two variants of reading big (20MB) text file:
auto file = File("test.txt", "r");
and
auto file = new File("test.txt", "r");
Tests does not show any significant difference in performance.
But I still not understand where the data is location in first
variant?
Re: Bug in documentation or misunderstanding it?
On Thursday, 26 January 2017 at 18:42:29 UTC, Suliman wrote:
On Thursday, 26 January 2017 at 17:52:24 UTC, H. S. Teoh wrote:
On Thu, Jan 26, 2017 at 05:38:59PM +, Suliman via
Digitalmars-d-learn wrote:
I read docs and can't understand what's wrong. Or I am do not
understand it, or there is come mistake.
Let's look at function
https://dlang.org/phobos/std_stdio.html#.File.byLine
auto byLine(Terminator = char, Char = char)(KeepTerminator
keepTerminator =
No.keepTerminator, Terminator terminator = '\x0a')
what does mean first groups of scope: (Terminator = char,
Char = char) ?
Those are compile-time parameters. You specify them in a
compile-time argument list using the !(...) construct, for
example:
auto lines = File("myfile.txt")
.byLine!(dchar, char)(Yes.keepTerminator, '\u263a');
T
So I am right about others items about for example that `=` is
optional?
Why this code is work: `file.byLine(KeepTerminator.no, 'm')`
Re: Bug in documentation or misunderstanding it?
On Thursday, 26 January 2017 at 17:52:24 UTC, H. S. Teoh wrote:
On Thu, Jan 26, 2017 at 05:38:59PM +, Suliman via
Digitalmars-d-learn wrote:
I read docs and can't understand what's wrong. Or I am do not
understand it, or there is come mistake.
Let's look at function
https://dlang.org/phobos/std_stdio.html#.File.byLine
auto byLine(Terminator = char, Char = char)(KeepTerminator
keepTerminator =
No.keepTerminator, Terminator terminator = '\x0a')
what does mean first groups of scope: (Terminator = char, Char
= char) ?
Those are compile-time parameters. You specify them in a
compile-time argument list using the !(...) construct, for
example:
auto lines = File("myfile.txt")
.byLine!(dchar, char)(Yes.keepTerminator, '\u263a');
T
So I am right about others items about for example that `=` is
optional?
Bug in documentation or misunderstanding it?
I read docs and can't understand what's wrong. Or I am do not understand it, or there is come mistake. Let's look at function https://dlang.org/phobos/std_stdio.html#.File.byLine auto byLine(Terminator = char, Char = char)(KeepTerminator keepTerminator = No.keepTerminator, Terminator terminator = '\x0a') what does mean first groups of scope: (Terminator = char, Char = char) ? The second one as I understand it's options symbol `=` mean that there is some default values, so if I will call function I can do not set them, so predefined values will be used. Am I right? And If I do not want predefined I can pass my own like: `byLine(No.keepTerminator, 'SomeLetter')` for example: `file.byLine(No.keepTerminator, 'a')` But when I compile simple example I am getting compilation error: `undefined identifier 'No'` Where I am wrong?
Re: module std.stream is deprecated - Will be removed by phobos version 2.070
On Monday, 23 January 2017 at 17:39:00 UTC, ixid wrote: On Friday, 11 September 2015 at 21:16:06 UTC, Brian Schott wrote: On Friday, 11 September 2015 at 20:29:56 UTC, Vladimir Panteleev wrote: Apparently it was decided at DConf 2015 to remove std.stream and friends from Phobos. Kill it with fire. Speaking of killing things with fire (OT) - what's happening with the comma operator? I want delicious tuples like Go. I have seen thread about improving tuples, but now I can't find it, could you remember me what people decided about how they could look in D?
Re: Can't understand if deallocation happens?
You have *two* distinct strings here. Yes, I understand, I am trying to find out how it's work on low level. Any ideas why zero is used?
Re: Can't understand if deallocation happens?
On Sunday, 22 January 2017 at 15:51:01 UTC, Suliman wrote:
string str = "abc";
writeln(str.ptr);
str = "def";
writeln("last data: ", *(str.ptr));
writeln("old data: ", *(str.ptr-1)); // print nothing
writeln("old data: ", *(str.ptr-2)); // print c
It's look like that there is some gap between data, because `d`
minus 1 should be `c`, but `c` I am getting only if I am doing
`-2`. Why?
writeln("old data: ", cast(int)*(str.ptr-1));
#old data: 0
String is gaping by zero?? I thought they are continuously like
abcdef
---↑
Where `↑` is equal to `ptr`.
Re: Can't understand if deallocation happens?
string str = "abc";
writeln(str.ptr);
str = "def";
writeln("last data: ", *(str.ptr));
writeln("old data: ", *(str.ptr-1)); // print nothing
writeln("old data: ", *(str.ptr-2)); // print c
It's look like that there is some gap between data, because `d`
minus 1 should be `c`, but `c` I am getting only if I am doing
`-2`. Why?
Re: Can't understand if deallocation happens?
Supported answer: you don't, it has infinite lifetime and you're claiming it is immutable, but then trying to pull the memory out from under it! The supported solution is simply to let the garbage collector manage it. But.. //GC.free(str_ptr.ptr); // Error: function core.memory.GC.free (void* p) is not callable using argument types (immutable(char)*) If you must call the function though, you can simply `cast(void*) str.ptr`, or use `char[]` up above instead of `string` when declaring it, so it has a mutable pointer to begin with. Since you are using .dup anyway, both declarations are equally legal. string str = "aaa"; writeln(str.length); // print 3 str = ""; writeln(str.length); //print 4 expected 3+4=7 [aaa][] (2 blocks) GC.free(cast(void*) str.ptr); writeln(str.length); //print 4
Re: Can't understand if deallocation happens?
str_ptr.ptr returns exactly the same thing as str.ptr or
(*str_ptr).ptr, a pointer to the contents. When you write
str_ptr, you print the pointer to the container.
So str.ptr is just shortcut?
Ok, but how to free memory from first located value (from `aaa`)?
I changed my code to next:
import std.stdio;
import std.string;
import core.memory;
void main()
{
string str = "aaa".dup;
string *str_ptr =
writeln("before: ", str_ptr.ptr);// address of structure
writeln(*str_ptr.ptr); // address of data
str = ""; // now writing to structure new data, so ptr
would be point to them
writeln("after: ", str_ptr.ptr);
writeln("length: ", str_ptr.length);
writeln("str_ptr point to: ", *str_ptr.ptr);
writeln(str_ptr);
writeln("before dealloc: ", str_ptr.length);
//GC.free(str_ptr.ptr); // Error: function
core.memory.GC.free (void* p) is not callable using argument
types (immutable(char)*)
writeln(str_ptr);
writeln("after dealloc: ", str_ptr.length);
}
But I can't call `GC.free(str_ptr.ptr)` on string type, only on
`char []`
Re: Can't understand if deallocation happens?
You do not append to anything, only overwrite it. There is no reallocation because "aaa".length == "bbb".length. I changed my code to: str_ptr.length +=1; str[] = ""[]; But now it's print length 4 before and after writing "bbb" to `str`. I expected that size will be 3+4=7.
Re: Release Candidate 2.073.0-rc1
If you just want a single executable, the default (libcmt) is good enough. It adds the C runtime as a static library in the link step. I already tried it, but app is still require msvcr120.dll when run it's on another PC.
Re: Release Candidate 2.073.0-rc1
On Thursday, 19 January 2017 at 19:22:07 UTC, Rainer Schuetze wrote: On 19.01.2017 08:32, Suliman wrote: http://dlang.org/changelog/2.073.0.html#mscrtlib-option How can I set this flag in dub.json? I tried: "dflags": [ "-mscrt=msvcrt" ] but got error: Error: unrecognized switch '-mscrt=msvcrt' Ouch, the switch is actually called -mscrtlib. We need to fix the documentation... Thanks! Now it's compile. What version of cruntime (I tried: libcmtd, msvcrt msvcrtd) I should use to prevent depending my project on `msvcr120.dll`. Now when I try run vibed-based project on another PC it's give me error about absent `msvcr120.dll`.
Re: What do you use to generate documentation?
On Thursday, 19 January 2017 at 18:09:20 UTC, Basile B. wrote: On Thursday, 19 January 2017 at 15:20:37 UTC, Suliman wrote: What do dflag: `-c do not link`. Should I pass it during the generation of the docs? dub is append it's automatically, but if I want to generate new docs every rebuild of app what is the reason to use this flag? Oh no 2013 !! I thought it was a hot conversation. I've been trapped. Why didn't you create your own subject ? It's seems that there is no any big changes in this deal. ok. I know that there is a lot of other docs-gen, but who can give me answer about flag `-c` why its used?
Re: What do you use to generate documentation?
What do dflag: `-c do not link`. Should I pass it during the generation of the docs? dub is append it's automatically, but if I want to generate new docs every rebuild of app what is the reason to use this flag?
Re: Release Candidate 2.073.0-rc1
On Wednesday, 18 January 2017 at 13:48:06 UTC, Martin Nowak wrote: First release candidate for 2.073.0. http://dlang.org/download.html#dmd_beta http://dlang.org/changelog/2.073.0.html Comes with a couple of more fixes: https://github.com/dlang/dmd/compare/v2.073.0-b2...v2.073.0-rc1 https://github.com/dlang/druntime/compare/v2.073.0-b2...v2.073.0-rc1 https://github.com/dlang/phobos/compare/v2.073.0-b2...v2.073.0-rc1 https://github.com/dlang/dub/compare/v1.2.0-beta.2...v1.2.0-rc.1 Please report any bugs at https://issues.dlang.org -Martin http://dlang.org/changelog/2.073.0.html#mscrtlib-option How can I set this flag in dub.json? I tried: "dflags": [ "-mscrt=msvcrt" ] but got error: Error: unrecognized switch '-mscrt=msvcrt'
Re: Why my app require MSVCR120.dll?
On Wednesday, 18 January 2017 at 09:54:43 UTC, Suliman wrote: On Friday, 6 November 2015 at 18:34:45 UTC, Cauterite wrote: On Friday, 6 November 2015 at 13:16:46 UTC, Suliman wrote: On Windows 7 it's work fine. On Windows 10 (clean install) it's do not start and require MSVCR120.dll D doesn't make particularly heavy use of the C runtime, so there's a good chance you can link against a different C runtime DLL — preferably one that's always available by default like msvcrt.dll. How can I link with msvcrt.dll ? Or maybe there is way to statically link with MSVCR120.dll?
Re: Why my app require MSVCR120.dll?
On Friday, 6 November 2015 at 18:34:45 UTC, Cauterite wrote: On Friday, 6 November 2015 at 13:16:46 UTC, Suliman wrote: On Windows 7 it's work fine. On Windows 10 (clean install) it's do not start and require MSVCR120.dll D doesn't make particularly heavy use of the C runtime, so there's a good chance you can link against a different C runtime DLL — preferably one that's always available by default like msvcrt.dll. How can I link with msvcrt.dll ?
Re: Lets talk about fibers
"The type of concurrency used when logical threads are created is determined by the Scheduler selected at initialization time. The default behavior is currently to create a new kernel thread per call to spawn, but other schedulers are available that multiplex fibers across the main thread or use some combination of the two approaches" (с) dlang docs Am I right understand that `concurrency` is just wrapper that hide implementation of tasks and fibers? So programmer can work with threads like with fibers and vice versa? If yes, does it's mean that spawns is planing not but with system Scheduler, but with DRuntime Scheduler (or how it's can be named?) and all of them work in user-space?
Re: Lets talk about fibers
Simply picking a worker thread + worker fiber when task is assigned and sticking to it until finished should work good enough. It is also important to note though that "fiber" is not the same as "task". Former is execution context primitive, latter is scheduling abstraction. In fact, heavy load systems are likely to have many more tasks than fibers at certain spike points. Could you explain difference between fibers and tasks. I read a lot, but still can't understand the difference.
Re: How to detect free/unfree memory segments?
On Saturday, 24 December 2016 at 01:15:43 UTC, jkpl wrote: On Friday, 23 December 2016 at 06:18:02 UTC, Suliman wrote: I would like to visualize how GC works and display free/not free memory segments. How I can understand which of them are used and which not? Could anybody explain what dangerous of memory fragmentation in languages without GC? Am I right understand that there is stay some small memory chunks that very hard to reuse? You start with a wrong assumption. The C malloc functions is not just a nasty and mean memory provider. Several implementations uses internally freelists. Which means that the gaps created by a free() may be filled again. For example - TCMallocator use free lists - GCC C malloc use free lists (as stated here http://www.gnu.org/software/libc/manual/html_node/Freeing-after-Malloc.html) - for snn.lib malloc (used by DMD win32) I can't say. So there is no any problems with memory fragmentation and all used memory arr successfuly reuse?
Re: D future ...
The whole focus on C++ people marketing is simply wrong! Every time this gets mentioned in external forums, the language gets a pounding by people with the same argumentation. Why go for D when C++ 20xx version does it also. +100 I totally agree with another part of post. Plus the docs is really suks, not only I can't write code without copy-past examples, because it's simply very hard to understand how to use one ore another function. Even simple writeln docs very bloated and 80% (mostly format futures) do not needed in real life
Re: Linux Kernel in D?
On Friday, 16 December 2016 at 16:12:38 UTC, D.Rex wrote: A D port of the Linux Kernel? https://github.com/whatsthisnow/ProjectD Any thoughts on the project? Linux is too bloated and there is no any reasons to re-implement it.
Re: DIP10005: Dependency-Carrying Declarations is now available for community feedback
On Wednesday, 14 December 2016 at 07:17:57 UTC, Jacob Carlborg
wrote:
On 2016-12-14 03:23, Andrei Alexandrescu wrote:
On 12/13/16 9:22 PM, Hatem Oraby wrote:
with(import std.range)
bool equal(R1, R2) if (isInputRange!R1 && isInputRange!R2)
{ ... }
I considered this, then figured with is superfluous. -- Andrei
It could allow to have a better control of the scope which the
import affects, i.e.:
with(import std.range)
{
void foo(T) if (isInputRange!T)
void bar(T) if (isInputRange!T)
}
Look very nice!
Re: DIP10005: Dependency-Carrying Declarations is now available for community feedback
On Tuesday, 13 December 2016 at 22:33:24 UTC, Andrei Alexandrescu wrote: Destroy. https://github.com/dlang/DIPs/pull/51/files Imho such syntaxis construction make language harder to learn. D is already pretty complex, but DIPs should simplify language, but do not make its harder
Re: [OT] Is there anybody from D-community in Tel Aviv?
On Sunday, 11 December 2016 at 11:37:39 UTC, Shachar Shemesh wrote: On 11/12/16 12:02, Suliman wrote: On Saturday, 10 December 2016 at 08:10:46 UTC, Shachar Shemesh wrote: On 10/12/16 09:25, Suliman wrote: I plan to visit Tel Aviv from 31 December to 6-th of January of next year. Is there anybody who take part in D-community there? There are about 30 D programmers in the Weka.io offices in Tel Aviv. We'll gladly offer you coffee and conversation, if you want to drop by the offices. Shachar Where do Weka.IO located? Could you give me any contacts, with to talk/write, when I will be on place? It's on our web site: http://weka.io. At the bottom of the page you can find the address. It's Beit Shamai 10, Tel Aviv. You can coordinate when it's a good time to come with me :-) Is 31 dec - 6 jan is working days in Israel? Work days in Israel are Sunday - Thursday. Otherwise, these are regular working days here. Note that Hanukkah is December 25 - January 1st this year, so many people might take leave of absence during those dates. Shachar Could you mail me your phone number to bubnenkoff at gmail com ? I also have few question about transport that quite offtop for this thread.
Re: [OT] Is there anybody from D-community in Tel Aviv?
On Saturday, 10 December 2016 at 08:10:46 UTC, Shachar Shemesh wrote: On 10/12/16 09:25, Suliman wrote: I plan to visit Tel Aviv from 31 December to 6-th of January of next year. Is there anybody who take part in D-community there? There are about 30 D programmers in the Weka.io offices in Tel Aviv. We'll gladly offer you coffee and conversation, if you want to drop by the offices. Shachar Where do Weka.IO located? Could you give me any contacts, with to talk/write, when I will be on place? Is 31 dec - 6 jan is working days in Israel?
Re: [OT] Is there anybody from D-community in Tel Aviv?
On Saturday, 10 December 2016 at 08:10:46 UTC, Shachar Shemesh wrote: On 10/12/16 09:25, Suliman wrote: I plan to visit Tel Aviv from 31 December to 6-th of January of next year. Is there anybody who take part in D-community there? There are about 30 D programmers in the Weka.io offices in Tel Aviv. We'll gladly offer you coffee and conversation, if you want to drop by the offices. Shachar Cool! Thank! The first plan was just to visit Israel, but does Weka hire new people? I am looking for any related with D job.
function is not callable using argument types ()
import std.stdio;
import std.concurrency;
void main()
{
void sp(int i)
{
receive((int i)
{
writeln("i: ", i);
});
}
auto r = new Generator!int(
{
foreach(i; 1 .. 10)
yield(i);
});
foreach(e;r)
{
sp.send(e); //Error: function app.main.sp (int i) is not
callable using argument types ()
}
}
What I am doing wrong? How "receive" can be named? Is it's method
or what? Why it's without return type?
[OT] Is there anybody from D-community in Tel Aviv?
I plan to visit Tel Aviv from 31 December to 6-th of January of next year. Is there anybody who take part in D-community there?
Re: Using the result of a comma expression is deprecated
As an aside, for security reasons you should use a prepared statement. Even if it's server-side code and there is no any iteration with user data (they come as JSON) Also, this is a decent usecase for scope(exit) but it should be put earlier in the function. Am I right understand that `scope(exit)` should be always at top, otherwise it would not work (it's very strange because by the docs it's calling every time when function out of the scopes)?
Re: Using the result of a comma expression is deprecated
Looks like you forgot a call to format before the opening
parenthesis.
should be:
string sqlinsert = format(`INSERT INTO usersshapes (userlogin,
uploading_date, geometry_type, data) VALUES ('%s', '%s', '%s',
'%s') `, login, uploading_date, geometry_type, data);
because what ends up happening is :
string sqlinsert = data;
which is almost certainly not what you want.
So all string substitute must be called with `format`?
because what ends up happening is :
string sqlinsert = data;
which is almost certainly not what you want.
I thought it's possible to write:
string data = "foo"
string sqlinsert = data
or am I wrong?
Re: Using the result of a comma expression is deprecated
On Sunday, 27 November 2016 at 11:21:58 UTC, drug007 wrote:
On 27.11.2016 14:07, Suliman wrote:
I am getting deprecation message:
"Using the result of a comma expression is deprecated" on this
code:
string sqlinsert = (`INSERT INTO usersshapes (userlogin,
uploading_date,
geometry_type, data) VALUES ('%s', '%s', '%s', '%s') `, login,
uploading_date, geometry_type, data);
What's wrong with it?
Didn't you miss something like class/structure/function before
"(`INSERT..."? What result do you expect?
void dbInsert(string login, string uploading_date, string
geometry_type, string data)
{
Statement stmt = conn.createStatement();
string sqlinsert = (`INSERT INTO usersshapes (userlogin,
uploading_date, geometry_type, data) VALUES ('%s', '%s', '%s',
'%s') `, login, uploading_date, geometry_type, data);
stmt.executeUpdate(sqlinsert);
scope(exit) stmt.close(); // closing
}
full code.
Using the result of a comma expression is deprecated
I am getting deprecation message:
"Using the result of a comma expression is deprecated" on this
code:
string sqlinsert = (`INSERT INTO usersshapes (userlogin,
uploading_date, geometry_type, data) VALUES ('%s', '%s', '%s',
'%s') `, login, uploading_date, geometry_type, data);
What's wrong with it?
Re: Why some function are class-less?
On Thursday, 17 November 2016 at 18:02:02 UTC, Jesse Phillips wrote: On Thursday, 17 November 2016 at 17:54:23 UTC, Suliman wrote: Ok, but when the logger class may be more helpful that function usage? You'd use the logger class when you need to make customizations or have multiple logging schemes. I'd expect Vibe.d allows you to override the global logging object. You could then inherit from the Logger class, customize the behavior and assign it to the global logger which is used by all the libraries which just call the log() function. For example I need to write all logs to file. I see this function, that seem set some global file name. "setLogFileSets a log file for disk file logging." But would it name accessible from anywhere or it would be visible inly from this scope? If yes is there any way to make it's global?
Re: Why some function are class-less?
On Thursday, 17 November 2016 at 17:45:31 UTC, Stefan Koch wrote: On Thursday, 17 November 2016 at 17:42:44 UTC, Suliman wrote: On Thursday, 17 November 2016 at 16:46:37 UTC, Steven Schveighoffer wrote: On 11/17/16 11:28 AM, Suliman wrote: [...] D does not require classes to write functions. All a class member function is anyway is a function with an implied class instance parameter. -Steve Ok, but what profit? Could you give me an example (for example with logger)? for example writeln. You would not want to create a stdio object just to call writeln. Ok, but when the logger class may be more helpful that function usage?
Re: Why some function are class-less?
On Thursday, 17 November 2016 at 16:46:37 UTC, Steven Schveighoffer wrote: On 11/17/16 11:28 AM, Suliman wrote: There is some functions that can be called without creation of class. For example: http://vibed.org/api/vibe.core.log/ As I understand I can create write log in two way. First create instance of Logger, second simply call function. Why it's done so? Just as shortcut? But is I create class it's look very poor http://vibed.org/api/vibe.core.log/FileLogger and I have only one needed method: ` put Writes part of a log line message. ` D does not require classes to write functions. All a class member function is anyway is a function with an implied class instance parameter. -Steve Ok, but what profit? Could you give me an example (for example with logger)?
Why some function are class-less?
There is some functions that can be called without creation of class. For example: http://vibed.org/api/vibe.core.log/ As I understand I can create write log in two way. First create instance of Logger, second simply call function. Why it's done so? Just as shortcut? But is I create class it's look very poor http://vibed.org/api/vibe.core.log/FileLogger and I have only one needed method: ` put Writes part of a log line message. `
Re: Earthquakes - New Zealand
On Monday, 14 November 2016 at 09:09:59 UTC, Paolo Invernizzi wrote: On Sunday, 13 November 2016 at 18:03:59 UTC, Suliman wrote: On Sunday, 13 November 2016 at 12:17:22 UTC, rikki cattermole But it's very interesting that right now I am doing portal about Earthquakes on D. It's now not ready to work (because problem with new version of Vue-js) I'm also using Vue 2 and D: it's really an interesting combo /Paolo Could you help me with migration to Vue2? I can't get it work :( Give me you skype or email plz
Re: Earthquakes - New Zealand
On Sunday, 13 November 2016 at 12:17:22 UTC, rikki cattermole wrote: Hello everyone! So to summarize New Zealand right now is being hit with some major earthquakes. But don't fret, I'm ok. There is a couple of other members in NZ, so please do let us know that you're safe! Now, for W, is there a plan for core members to report in to check that everyone is ok in an emergency (where ever they may be)? P.S. If you want live updates on what I'm going through, feel free to look at[0]. [0] http://www.canterburyquakelive.co.nz/Browse My regrets :( But it's very interesting that right now I am doing portal about Earthquakes on D. It's now not ready to work (because problem with new version of Vue-js) The very early alpha is located here http://188.227.17.149:8080/ the server maybe not reachable.
Re: SecureD - A simple cryptography library for D
It would take some research, but the native Botan library makes heavy use of C++ templates There is native lib https://github.com/etcimon/botan Some people with whom I talked said that botan is too low level for them and it's hard for them to use it. So your lib maybe very good wrap on top of it.
Re: SecureD - A simple cryptography library for D
Is its possible to make its wrap on botan instead of openssl? Some of developers have problems with openssl because it's require openssl lib. But botan is more native but much more lowlevel. So its hard to use.
Add format future to Phobos date time
Date formating is very common operation. Is it's possible to add this future to Phobos datetime module? There is already external lib https://github.com/cmays90/datetimeformat but I think that is's much better to have in base lib.
Re: libcurl
On Saturday, 22 October 2016 at 01:20:52 UTC, Andrei Alexandrescu wrote: Guess we need to get ready! https://curl.haxx.se/mail/lib-2016-10/0076.html -- Andrei I think that it much better to force https://github.com/ikod/dlang-requests developing its much easier than curl and its native
Re: scone 1.2.0
On Monday, 10 October 2016 at 19:50:53 UTC, vladdeSV wrote: scone, Simple CONsole Engine, version 1.2.0 has just been released! https://github.com/vladdeSV/scone/releases/tag/v1.2.0 This version includes a restructure of the whole project (should not affect applications), and the addition of a progress bar to the current UI library + bug fix. Feedback is always appreciated! Could you add example of progress bar?
Re: code-d 0.12.0 - The user friendly release (code-d for noobs)
Please, add Sublime support
Re: [GSoC] std.experimental.xml is now a PR!
On Sunday, 28 August 2016 at 06:28:35 UTC, NVolcz wrote: On Wednesday, 24 August 2016 at 09:31:44 UTC, Lodovico Giaretta wrote: Hi! I'm pleased to announce that my GSoC project, a replacement for the outdated std.xml, is now a Phobos PR! [1] It is an (almost complete) mirror of my repository [2], which is also available on DUB [3]. I would like to thank my mentor Robert burner Schadek for his great support and everybody who already gave some feedback during these months. The PR is not meant for immediate merging. Some things still need improvement (docs/unittests/...) while others will come in a second iteration (advanced DTD handling). It is meant to for some reviews, focusing mainly on the design and usability of the library. In the PR description you will find all the details, including a nice "wishlist" of things that I found missing in D during the development and some open questions. So, if you have any consideration/suggestion, drop a line here or on the PR, and if you find bugs, don't hesitate to file an issue on the issue tracker of my repository. Thank you very much! [1] https://github.com/dlang/phobos/pull/4741 [2] https://github.com/lodo1995/experimental.xml [3] https://code.dlang.org/packages/std-experimental-xml I like the new cursor API very much since it enables new use cases that are were hard to do with the old API. Thanks for your hard work! Examples are a bit scares. I like the way Phobos documents every functions with an unittest/example. I'm all for that! Another thing I encountered some days ago was that the default error handler is using asserts to signal error. https://github.com/lodo1995/experimental.xml/issues/30 It is not obvious from the API that you're required to have a error handler. Two ideas: Use exceptions instead of asserts. This way it is recoverable in the default use case. Require a error handler in the constructor. Examples still sucks. Hard to start use lib.
Re: Beta 2.072.0-b1
On Saturday, 1 October 2016 at 20:57:17 UTC, Martin Nowak wrote: First beta for the 2.072.0 release. This release comes with many new phobos features, native TLS support on OSX, the first bunch of @safety enhancements (try -transition=safe), and a few smaller language and compiler additions. This is also the first dmd release to include dub. http://dlang.org/download.html#dmd_beta http://dlang.org/changelog/2.072.0.html Unfortunately we still need to resolve a regression that causes issues with EncodingScheme.create (https://issues.dlang.org/show_bug.cgi?id=16291), you might run into problems when using std.net.curl. In case you run into a yet unknown module cycle, this is likely due to the fixed cycle detection. We're still working on a -DRT-cyclecheck=printonly switch to allow making those non-fatal. https://github.com/dlang/druntime/pull/1602#issuecomment-248447332 Please report any bugs at https://issues.dlang.org -Martin Sorry, but when new libs will be included? XML (from GSoC) https://github.com/lodo1995/experimental.xml std_data_json https://github.com/s-ludwig/std_data_json I think it's better to include them now to std.experimental to help people start adopt projects to them.
Re: Question about __treats
On Wednesday, 21 September 2016 at 07:09:01 UTC, rikki cattermole wrote: On 21/09/2016 7:06 PM, Suliman wrote: It's seems that __treats is language keyword that help to get info from compile-time. But there is also lib named std.traits and I can't understand difference https://dlang.org/spec/traits.html https://dlang.org/phobos/std_traits.html Could you explain the difference? Simple, __traits or __treats as you called it is implemented by the compiler. But std.traits is all implemented in the standard library as user D code. If you can do it with std.traits you should. Otherwise __traits. So std.traits is a bit higher level and there are more things available there as adding more __traits is a bit rare. So for example to get All Members of class I should use allMembers from __traits, because it's seems that std.traits do not have such future.
Question about __treats
It's seems that __treats is language keyword that help to get info from compile-time. But there is also lib named std.traits and I can't understand difference https://dlang.org/spec/traits.html https://dlang.org/phobos/std_traits.html Could you explain the difference?
Re: dub: how to update package?
On Saturday, 17 September 2016 at 07:25:29 UTC, Intersteller wrote: I have a dub project, is there a way to update to get the latest package? dub upgrade
Re: I hate new DUB config format
Sönke Ludwig, really sorry. It's look my big mistake. I looked at SDL more detail, and this format is much better than JSON. I hope a lot of people is changed their position too.
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 18:27:41 UTC, WebFreak001 wrote:
On Wednesday, 7 September 2016 at 18:14:29 UTC, Suliman wrote:
You could look my PC with TeamViewer
Ok problem fixed. The config was invalid, it needs to look like
this:
{
"d.stdlibPath": [
"C:\\D\\dmd2\\src\\phobos",
"C:\\D\\dmd2\\src\\druntime\\import"
]
}
Just forgot these braces {} to make it valid json
It's possible to integrate workspace-d with Sublime?
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 18:10:23 UTC, WebFreak001 wrote: On Wednesday, 7 September 2016 at 18:09:23 UTC, Suliman wrote: On Wednesday, 7 September 2016 at 18:08:14 UTC, Suliman wrote: If open working folder: https://snag.gy/MnTJtB.jpg https://snag.gy/5r2REm.jpg it should work now if you enter at least one character and then ctrl-space (and maybe also escape before that to close the vscode internal auto complete thing) Do not work :( You could look my PC with TeamViewer ID 179 707 485 pass 6543
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 18:08:14 UTC, Suliman wrote: If open working folder: https://snag.gy/MnTJtB.jpg https://snag.gy/5r2REm.jpg
Re: workspace-d 2.7.2 & code-d 0.10.14
If open working folder: https://snag.gy/MnTJtB.jpg
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 18:00:45 UTC, WebFreak001 wrote: On Wednesday, 7 September 2016 at 17:55:59 UTC, Suliman wrote: Sorry, I do not understand what do you mean? Clean solution with empty project? And what part? Just screenshot of main window? Ctrl-Shift-P -> Toggle Developer Tools then go to console at the top and there are a lot of debug messages from code-d This? https://snag.gy/QP0OCs.jpg https://snag.gy/2VGoKF.jpg
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 17:26:04 UTC, WebFreak001 wrote: On Wednesday, 7 September 2016 at 17:24:45 UTC, Suliman wrote: On Wednesday, 7 September 2016 at 17:21:17 UTC, Suliman wrote: On Wednesday, 7 September 2016 at 17:08:36 UTC, Suliman wrote: "d.stdlibPath": [ "C:\\D\\dmd2\\src\\phobos", "C:\\D\\dmd2\\src\\druntime\\import" ] I check path, look like this is correct (al lst they are exists). But I still do not getting surrestion for import like std. and for any Phobos functions like writeln etc Hm... Does it's need time for cashing symbols? It's seems that work, but I still not understand if it's ok or not. https://snag.gy/9QgzKn.jpg that happens when it can't find any auto completions. Can you send a screenshot of the developer tools right after startup + attempt to autocomplete (try to avoid hovering over symbols to make the debug output smaller) Sorry, I do not understand what do you mean? Clean solution with empty project? And what part? Just screenshot of main window?
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 17:21:17 UTC, Suliman wrote: On Wednesday, 7 September 2016 at 17:08:36 UTC, Suliman wrote: "d.stdlibPath": [ "C:\\D\\dmd2\\src\\phobos", "C:\\D\\dmd2\\src\\druntime\\import" ] I check path, look like this is correct (al lst they are exists). But I still do not getting surrestion for import like std. and for any Phobos functions like writeln etc Hm... Does it's need time for cashing symbols? It's seems that work, but I still not understand if it's ok or not. https://snag.gy/9QgzKn.jpg
Re: workspace-d 2.7.2 & code-d 0.10.14
On Wednesday, 7 September 2016 at 17:08:36 UTC, Suliman wrote: "d.stdlibPath": [ "C:\\D\\dmd2\\src\\phobos", "C:\\D\\dmd2\\src\\druntime\\import" ] I check path, look like this is correct (al lst they are exists). But I still do not getting surrestion for import like std. and for any Phobos functions like writeln etc Hm... Does it's need time for cashing symbols? It's seems that work, but I still not understand if it's ok or not.
Re: workspace-d 2.7.2 & code-d 0.10.14
"d.stdlibPath": [ "C:\\D\\dmd2\\src\\phobos", "C:\\D\\dmd2\\src\\druntime\\import" ] I check path, look like this is correct (al lst they are exists). But I still do not getting surrestion for import like std. and for any Phobos functions like writeln etc
Re: workspace-d 2.7.2 & code-d 0.10.14
And to get the visual studio code extension, simply search for `code-d` in >the extensions manager. It will pop up as `D Programming Language (code-d)` So to get it work I should place dcd-client.exe dcd-server.exe dscanner.exe and workspace-d.exe in dir that set in PATH (for me it's C:\D\dmd2\windows\bin ) right? But after it it's do not seems to be working: http://img.ctrlv.in/img/16/09/07/57cfc3120b3c5.png What I am doing wrong?
How it's better to store data from DB?
Usually I am storing daba from DB as array of structures.
Something like:
struct MyData
{
int id;
string name;
int age;
}
MyData mydata;
Then I am creating array of structures:
MyData [] mydatas;
And fill data in my code. Then append it to `mydatas` to get it
iterable.
But is it's good? Maybe there there is better way?
I need main -- be able iterate thru the data. Any other variants?
Re: Beta release vibe.d 0.7.30-beta.1
On Thursday, 1 September 2016 at 07:32:43 UTC, Sönke Ludwig wrote: Am 31.08.2016 um 16:56 schrieb Martin Tschierschke: On Wednesday, 31 August 2016 at 09:00:47 UTC, Sönke Ludwig wrote: Am 31.08.2016 um 10:57 schrieb Sönke Ludwig: [...] All changes: https://github.com/rejectedsoftware/vibe.d/blob/master/CHANGELOG.md DUB package: http://code.dlang.org/packages/vibe-d/0.7.30-beta.1 [1]: http://code.dlang.org/packages/vibe-sdlang [2]: http://code.dlang.org/packages/diet-ng Nice to read on the ongoing progress! Can you give a road map of what will be next, may be as an interview to the D Blog? My intention was to write something up since DConf this year, I just didn't manage to do it so far (the last months were extremely busy with other things). But it's still on the TODO list. When do you think vibe's version will be 1.0.0? I'm currently still working on vibe-core [1], which will be the 1.0.0 of the core parts of the current vibe-d package. The API is more or less backwards compatible, but the insides have been thoroughly redesigned based on the experiences and language changes of the past years. I hope to get that into beta in weeks to (few) months and it is more or less just held back by the final decision for an event loop abstraction. Similarly, diet-ng will be the 1.0.0 of the Diet template render module. The rest of the sub packages will get the same treatment once vibe-core is done. From then on, they will all receive their own individual version numbers, according to their particular development pace. [1]: https://github.com/vibe-d/vibe-core It's not problem with backward compatibility. Much important is easy to use and good docs.
Re: Do we need a FAQ page?
I already wrote one alternative version. Dlang.ru is down, but on page there is germany translation version http://forum.dlang.org/thread/vxmieatguqfkwgzli...@forum.dlang.org
D-ideas collection
We already have DIPs, but I think we should have place for collecting good ideas that can be integrated in D. Most people from here prefer posting it's on forum, but such topics (like ideas from new version of C#) is go down in few days. Fro example now I read about interesting future in Dart: With 1.19 we introduce support for an optional trailing comma after the last argument of a call and the last parameter of a function declaration. This makes code editing much easier: https://2.bp.blogspot.com/-kVBJlnXby54/V8DJqaZsvwI/NeU/suPDhaZcdsEvN1DuYy8669JJ-W6x1zX1wCLcB/s1600/ReorderCode.gif And I do not know where to post it.
Re: Few questions about concurrency
Message passing is an alternative to relying on globals +
mutex's. In the end its implemented by a global + stack FIFO
(mailbox).
Where it's better? Could you give an example?
Ring transition e.g. system calls are not all that expensive.
Its what the kernel does with that system call that is
problematic to performance.
Not fully understand. In first sentence you are saing that is not
expensive and in second you are saying about "kernel does with
that system call that is problematic to performance"
For example vibed is based on Fibers. Does it's mean that:
void handleRequest(HTTPServerRequest req,
HTTPServerResponse res)
{
if (req.path == "/")
res.writeBody("Hello, World!", "text/plain");
}
is fiber-function?
Few questions about concurrency
Hello! I am still attempt to better understand how concurrency works. I read a lot of info but still misunderstood some key-points. Here is my thought about it and questions: 1. There is OS threads. Context-switching is very expensive because during it we should to save ALL CPU registers to RAM. Accessing to RAM is slowly up 200-300 times then accessing to registers, so dumping/restoring registers take a lot of time. Right? 1.1 During context-switching OS is go to kernel-mode (ring-0). I have heard opinion that it's cost a lot, but can't understand is it true and why it cost a lot? 2. Message passing is superstructure of threads. Right? When it can be helpful? Any user-case please. 2.1 Can simple threads pass data/messages to each other without message passing? 3. Fibers is threads that works in user-mode (rather in single kernel-thread OS do not see them, it see only 1 own Thread). 3.1 Fibers are switch explicitly. If do not call yield mother-thread will be hang on. 3.2 Where fibers store CPU register state in moment of switching between fibers? In memory? But then what difference with context-switching (that take a lot of time to save/restore registers state)? Please correct me where I am wrong and highlight where I am right.
