On Thursday, 4 February 2016 at 05:50:05 UTC, tsbockman wrote:
On Thursday, 4 February 2016 at 02:06:00 UTC, xtreak wrote:
On Wednesday, 3 February 2016 at 23:57:12 UTC, Ivan Kazmenko
wrote:
[...]
Thanks for the reply. But the issue was about knowing the type
of lambda in map. Most people wo
Are the functions lastSocketError() and wouldHaveBlocked() from
std.socket thread-safe? i.e. can they be reliably used to see the
status of the last socket call when sockets are being
read/written in multiple threads?
Consider:
class C {
}
class B : C {
}
class A : B {
}
class D : C {
}
C[] objList;
how do we test if objLis[k] is of base type "B"?
Ie for [new A(), new B(), new D(), new C()] would give output
[true, true, false, false].
?
Thank you! :D
T[] list;
foreach(v; list) {
if (SpecialT v2 = cast(SpecialT)v) {
writeln(v2);
} else {
writeln("err");
}
}
That should work.
On Thursday, 4 February 2016 at 02:06:00 UTC, xtreak wrote:
Thanks for the reply. But the issue was about knowing the type
of lambda in map.
Yes, I was just making sure that I knew why ReturnType!lambda was
failing, which is that it is a template and does not have a
return type until it is in
On Thursday, 4 February 2016 at 02:06:00 UTC, xtreak wrote:
On Wednesday, 3 February 2016 at 23:57:12 UTC, Ivan Kazmenko
wrote:
Seems reasonable: `(int a) => a * a` has return type `int` but
just `(a) => a * a` does not yet know the type of `a`, and so
can not tell the return type.
Thanks for
On Wednesday, 3 February 2016 at 23:57:12 UTC, Ivan Kazmenko
wrote:
On Wednesday, 3 February 2016 at 22:09:37 UTC, sigod wrote:
On Wednesday, 3 February 2016 at 19:21:06 UTC, Meta wrote:
Ah, I see. I'd like to test something; can you please change
`(a) => a * a` to
`(int a) => a * a` and post
On Wednesday, 3 February 2016 at 19:21:06 UTC, Meta wrote:
On Wednesday, 3 February 2016 at 18:40:27 UTC, xtreak wrote:
Thanks. I was trying to get the return type of lambdas. I was
trying the following and got an error. I was using dpaste with
dmd 2.070
writeln(ReturnType!(a =(a *a)))
Error
On Thursday, February 04, 2016 00:23:07 ixid via Digitalmars-d-learn wrote:
> It would be nice to have a simple writeln that adds spaces
> automatically like Python's 'print' in std.stdio, perhaps called
> print.
If that's what you're looking for, I expect that most of us would think that
it's jus
On Thursday, 4 February 2016 at 00:30:03 UTC, cym13 wrote:
On Thursday, 4 February 2016 at 00:23:07 UTC, ixid wrote:
It would be nice to have a simple writeln that adds spaces
automatically like Python's 'print' in std.stdio, perhaps
called print.
Sounds way too redundant to me.
Normally yo
On Thursday, 4 February 2016 at 00:23:07 UTC, ixid wrote:
It would be nice to have a simple writeln that adds spaces
automatically like Python's 'print' in std.stdio, perhaps
called print.
Sounds way too redundant to me.
On 04.02.2016 00:45, Enjoys Math wrote:
On Wednesday, 3 February 2016 at 23:43:45 UTC, Enjoys Math wrote:
body { // is currently:
return to!string(this.toHash());
}
and is returning a base10 string, so how would I return a hex string so
I can compare numbers displayed to the debugger addresse
It would be nice to have a simple writeln that adds spaces
automatically like Python's 'print' in std.stdio, perhaps called
print.
On Wed, Feb 03, 2016 at 11:45:15PM +, Enjoys Math via Digitalmars-d-learn
wrote:
> On Wednesday, 3 February 2016 at 23:43:45 UTC, Enjoys Math wrote:
> >I am making a method called:
> >
> >@property string debugIDString() {
> >in {
> > assert(super.toHash() == this.toHash());
> >} body {
> >
>
On 02/03/2016 10:09 AM, ZombineDev wrote:
> I think these two links, more or less, answer my question:
>
http://stackoverflow.com/questions/29759419/closures-in-loops-capturing-by-reference
>
> https://issues.dlang.org/show_bug.cgi?id=2043
I find it more readable to give a name like makeClos
On Wednesday, 3 February 2016 at 22:09:37 UTC, sigod wrote:
On Wednesday, 3 February 2016 at 19:21:06 UTC, Meta wrote:
Ah, I see. I'd like to test something; can you please change
`(a) => a * a` to
`(int a) => a * a` and post the results?
This works.
http://dpaste.dzfl.pl/92c254ef6cf6
Seem
On Wednesday, 3 February 2016 at 23:45:15 UTC, Enjoys Math wrote:
On Wednesday, 3 February 2016 at 23:43:45 UTC, Enjoys Math
wrote:
I am making a method called:
@property string debugIDString() {
in {
assert(super.toHash() == this.toHash());
} body {
}
body { // is currently:
return to!s
On Wednesday, 3 February 2016 at 15:09:35 UTC, Adam D. Ruppe
wrote:
Read my post here:
http://stackoverflow.com/questions/34398408/struct-declaration-order/34398642#34398642
then see if you can use the same reasoning on your problem.
This indeed works without any other tricks such as compile-
On Wednesday, 3 February 2016 at 23:43:45 UTC, Enjoys Math wrote:
I am making a method called:
@property string debugIDString() {
in {
assert(super.toHash() == this.toHash());
} body {
}
body { // is currently:
return to!string(this.toHash());
}
and is returning a base10 string, so how w
I am making a method called:
@property string debugIDString() {
in {
assert(super.toHash() == this.toHash());
} body {
}
On Wednesday, February 03, 2016 22:27:07 holo via Digitalmars-d-learn wrote:
> When i start same program on server in different timezone
> difference is much higher (more than hour). Why it is happening?
> Timezones shouldnt have influence on such equation.
You're probably getting problems due to
On 02/03/2016 11:39 PM, Andrea Fontana wrote:
On Wednesday, 3 February 2016 at 17:49:39 UTC, Marc Schütz wrote:
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then optionally
copying the value once to avoid the "manifest consta
On Wednesday, 3 February 2016 at 22:27:07 UTC, holo wrote:
When i start same program on server in different timezone
difference is much higher (more than hour). Why it is
happening? Timezones shouldnt have influence on such equation.
Try using `Clock.currTime(UTC())`. And make sure all instanc
On Wednesday, 3 February 2016 at 17:49:39 UTC, Marc Schütz wrote:
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then
optionally copying the value once to avoid the "manifest
constant" copy/paste behaviour, where applicable?
Hello
I'm trying to count time difference to count time for how long
instance is running. Here is how am i doing it:
import std.stdio, sigv4, kxml.xml, awsxml;
import std.datetime;
import std.string;
void main()
{
SigV4 req = new SigV4;
IfResult result = req.go;
AwsXml instance
On Wednesday, 3 February 2016 at 19:21:06 UTC, Meta wrote:
On Wednesday, 3 February 2016 at 18:40:27 UTC, xtreak wrote:
Thanks. I was trying to get the return type of lambdas. I was
trying the following and got an error. I was using dpaste with
dmd 2.070
writeln(ReturnType!(a =(a *a)))
Error
On Wednesday, February 03, 2016 11:47:35 Ola Fosheim Grøstad via
Digitalmars-d-learn wrote:
> On Wednesday, 3 February 2016 at 11:41:28 UTC, Jonathan M Davis
> wrote:
> > AFAIK, there is no way to detect whether an exception is in
> > flight or not aside from the cases where scope(failure) or
> >
On Wednesday, 3 February 2016 at 14:19:32 UTC, Vasileios
Anagnostopoulos wrote:
Thank you very much. I investigate
Tcl_CmdProc
more closely.
On Wed, Feb 3, 2016 at 3:50 PM, Gary Willoughby via
Digitalmars-d-learn < digitalmars-d-learn@puremagic.com> wrote:
On Wednesday, 3 February 2016 at 1
On Wednesday, 3 February 2016 at 18:09:52 UTC, ZombineDev wrote:
I think these two links, more or less, answer my question:
http://stackoverflow.com/questions/29759419/closures-in-loops-capturing-by-reference
https://issues.dlang.org/show_bug.cgi?id=2043
Another approach:
import std.range, std
On Wednesday, 3 February 2016 at 18:40:27 UTC, xtreak wrote:
Thanks. I was trying to get the return type of lambdas. I was
trying the following and got an error. I was using dpaste with
dmd 2.070
writeln(ReturnType!(a =(a *a)))
Error: template instance f662.main.ReturnType!((a) => a * a)
doe
On Wed, Feb 03, 2016 at 06:40:27PM +, xtreak via Digitalmars-d-learn wrote:
[...]
> Thanks. I was trying to get the return type of lambdas. I was trying
> the following and got an error. I was using dpaste with dmd 2.070
>
> writeln(ReturnType!(a =(a *a)))
>
> Error: template instance f662.ma
On Wednesday, 3 February 2016 at 17:40:23 UTC, Meta wrote:
On Wednesday, 3 February 2016 at 17:12:03 UTC, xtreak wrote:
I was reporting a patch for the regression by removing the
code that was causing the error. The bug was that map was not
accepting multiple lambdas. It was suggested to check
On Wednesday, 3 February 2016 at 18:03:24 UTC, ZombineDev wrote:
C++11 allows you to capture a local variable explicitly by
value.
What is the simplest way to make code below print "0 1 .. 9",
like the C++ version does?
D version:
```
import std.stdio;
void main()
{
alias F = void deleg
C++11 allows you to capture a local variable explicitly by value.
What is the simplest way to make code below print "0 1 .. 9",
like the C++ version does?
D version:
```
import std.stdio;
void main()
{
alias F = void delegate();
F[] arr;
foreach (i; 0 .. 10)
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then
optionally copying the value once to avoid the "manifest
constant" copy/paste behaviour, where applicable?
template forceCTFE(alias expr) {
alias forceCTFE = expr;
}
aut
On Wednesday, 3 February 2016 at 17:12:03 UTC, xtreak wrote:
I was reporting a patch for the regression by removing the code
that was causing the error. The bug was that map was not
accepting multiple lambdas. It was suggested to check for void
functions and lambdas. I couldn't find a function
On 2/3/16 12:16 PM, Andrea Fontana wrote:
On Wednesday, 3 February 2016 at 16:24:19 UTC, Adam D. Ruppe wrote:
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then optionally
copying the value once to avoid the "manifest constant
On Wednesday, 3 February 2016 at 17:16:30 UTC, Andrea Fontana
wrote:
But if I want a normal var, not static or enum?
There's no way to force it?
Just make a mutable copy of it, I think.
On Wednesday, 3 February 2016 at 16:24:19 UTC, Adam D. Ruppe
wrote:
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then
optionally copying the value once to avoid the "manifest
constant" copy/paste behaviour, where applicable?
I was reporting a patch for the regression by removing the code
that was causing the error. The bug was that map was not
accepting multiple lambdas. It was suggested to check for void
functions and lambdas. I couldn't find a function to check for
return type in the std.traits. I tried the expli
On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
What is a good way to try to force it? Using enum? Then
optionally copying the value once to avoid the "manifest
constant" copy/paste behaviour, where applicable?
Yes, or static local variables are ctfe initialized too.
On Wednesday, 3 February 2016 at 15:59:43 UTC, Adam D. Ruppe
wrote:
You never asked for CTFE.
CTFE only happens when it *has* to - when you write code that
specifically asks for or requires it.
What is a good way to try to force it? Using enum? Then
optionally copying the value once to avoid
On 03.02.2016 16:34, Andrea Fontana wrote:
void main()
{
enum first = very_very_long_function(10);
writeln("First is ", first);
auto second = very_very_long_function(12);
writeln("Second is ", second);
auto third = first;
third += 1;
On Wednesday, 3 February 2016 at 15:34:51 UTC, Andrea Fontana
wrote:
enum first = very_very_long_function(10);
auto second = very_very_long_function(12);
Why second init doesn't work with CTFE?
You never asked for CTFE.
CTFE only happens when it *has* to - when you write code
Thank you so much ! Thanks to your instructions, it is working
for me now with Visual Studio and I can run the first example of
GLFW's documentation :) I'll try on Fedora at a later time
This code:
import std.stdio;
int very_very_long_function(in int k)
{
if (!__ctfe) writeln("Can't use ctfe!");
return k/2;
}
void main()
{
enum first = very_very_long_function(10);
writeln("First is ", first);
auto second = very_very_long_function(12);
On Wednesday, 3 February 2016 at 14:01:24 UTC, Ivan Kazmenko
wrote:
1. What works.
Read my post here:
http://stackoverflow.com/questions/34398408/struct-declaration-order/34398642#34398642
then see if you can use the same reasoning on your problem.
On 2/3/16 8:17 AM, Robert M. Münch wrote:
On 2016-02-02 18:59:35 +, Steven Schveighoffer said:
If this is valid D, I'm not sure what it means :)
There was one type, the rest I stripped totally away as IMO it's not
relevant for the actual problem.
Very relevant: what are you declaring?
On Wednesday, 3 February 2016 at 13:04:54 UTC, Mike Parker wrote:
- First I tried to create a VisualD project on Windows, and to
manually compile derelict-util and derelict-glfw3:
FYI, this thread motivated me to revisit the manual compilation
instructions in the Derelict docs [1]. I've outli
Thank you very much. I investigate
Tcl_CmdProc
more closely.
On Wed, Feb 3, 2016 at 3:50 PM, Gary Willoughby via Digitalmars-d-learn <
digitalmars-d-learn@puremagic.com> wrote:
> On Wednesday, 3 February 2016 at 12:20:42 UTC, Vasileios Anagnostopoulos
> wrote:
>
>> Is there any example,framewor
Hi,
1. What works.
Inside a function (outerFun), I've got inner functions fun1 and
fun2 which have to recursively call each other. Just writing
them one after the other does not work. I've managed to find a
trick to make it work though, which is to add empty compile-time
parameters to fun1
On Wednesday, 3 February 2016 at 12:20:42 UTC, Vasileios
Anagnostopoulos wrote:
Is there any example,framework or tutorial on how to call D
from Tcl (write new commands in D for Tcl)?
I am on Windows 10 x86_64.
thank you.
I've created a wrapper around Tcl/Tk to create GUI's here:
https://gi
On 03.02.2016 14:16, Robert M. Münch wrote:
Well, it should of course be:
BaseOperator: Value {
}
Still missing "class". I know I'm being pedantic, but if you're being
sloppy here, how do I know that you're not being sloppy where it matters?
Casting between class types that have an inherit
On 2016-02-02 18:59:35 +, Steven Schveighoffer said:
If this is valid D, I'm not sure what it means :)
There was one type, the rest I stripped totally away as IMO it's not
relevant for the actual problem.
--
Robert M. Münch
http://www.saphirion.com
smarter | better | faster
On 2016-02-02 19:03:04 +, anonymous said:
This isn't valid D code at all, which makes it unnecessarily hard to
understand what you mean.
Well, it should of course be:
BaseOperator: Value {
}
A Value* is a pointer to a class reference. Unless you're doing
something really funky with the
On Wednesday, 3 February 2016 at 13:07:51 UTC, Mike Parker wrote:
On Wednesday, 3 February 2016 at 13:04:54 UTC, Mike Parker
wrote:
latest release. Unfortunately, they do not provide a binary
distribution, so you will have to build the DLL from source or
find somewhere that makes it availabl
On Wednesday, 3 February 2016 at 13:04:54 UTC, Mike Parker wrote:
latest release. Unfortunately, they do not provide a binary
distribution, so you will have to build the DLL from source or
find somewhere that makes it available prebuilt DLLs available
for you.
Actually, they do provide preb
On Wednesday, 3 February 2016 at 12:18:17 UTC, Whirlpool wrote:
Hi, I'd like to use Derelict, more specifically the GLFW
package, but so far I have been unable to make it work. (I
posted in the IDE section but didn't get a reply (link below),
and since the Derelict forum seems not to exist anym
On Wednesday, 3 February 2016 at 12:44:39 UTC, Jacob Carlborg
wrote:
* Worst case scenario, override "_d_throwc" [2]
For the trace handler and overriding "_d_throwc" you would just
use the default implementation plus store a boolean (or
counter) in a TLS variable indicating an exception has be
On Wednesday, 3 February 2016 at 12:20:42 UTC, Vasileios
Anagnostopoulos wrote:
Is there any example,framework or tutorial on how to call D
from Tcl (write new commands in D for Tcl)?
I am on Windows 10 x86_64.
thank you.
I'm not sure about the specifics but if it can be done in C you
can j
On 2016-02-03 12:09, Ola Fosheim Grøstad wrote:
Is there some reliable way to detect that a destructor is called because
of exception unwinding?
I basically want to change behaviour within a destructor based on
whether the destructor is called as a result of a regular or an
exceptional situation
On Wednesday, 3 February 2016 at 12:10:01 UTC, Marc Schütz wrote:
On Wednesday, 3 February 2016 at 10:16:56 UTC, Saurabh Das
wrote:
[...]
It used to work in 2.066.1; bisecting points to this PR:
https://github.com/D-Programming-Language/phobos/pull/3043
When bisecting between 2.066 and 2.067,
Is there any example,framework or tutorial on how to call D from Tcl (write
new commands in D for Tcl)?
I am on Windows 10 x86_64.
thank you.
--
Dr. Vasileios Anagnostopoulos (MSc,PhD)
Researcher/Developer
ICCS/NTUA 9 Heroon Polytechneiou Str., Zografou 15773 Athens,Greece
T (+30) 2107723404 M
Hi, I'd like to use Derelict, more specifically the GLFW package,
but so far I have been unable to make it work. (I posted in the
IDE section but didn't get a reply (link below), and since the
Derelict forum seems not to exist anymore, I post here. I hope it
is OK to do so)
Things I tried :
On Wednesday, 3 February 2016 at 10:16:56 UTC, Saurabh Das wrote:
Why doesn't this work? Is it a requirement that a proxied
struct must have a nothrow destructor and toHash?
It used to work in 2.066.1; bisecting points to this PR:
https://github.com/D-Programming-Language/phobos/pull/3043
When
On Wednesday, 3 February 2016 at 11:41:28 UTC, Jonathan M Davis
wrote:
AFAIK, there is no way to detect whether an exception is in
flight or not aside from the cases where scope(failure) or
catch would catch the exception, and from what I recall of the
last time that someone asked this question
On Wednesday, February 03, 2016 11:09:00 Ola Fosheim Grøstad via
Digitalmars-d-learn wrote:
> Is there some reliable way to detect that a destructor is called
> because of exception unwinding?
>
> I basically want to change behaviour within a destructor based on
> whether the destructor is called
Is there some reliable way to detect that a destructor is called
because of exception unwinding?
I basically want to change behaviour within a destructor based on
whether the destructor is called as a result of a regular or an
exceptional situation.
E.g. commit changes to a database on regul
On Monday, 1 February 2016 at 21:40:45 UTC, Enjoys Math wrote:
module signals_and_slots;
How do you implement this template called like:
void onColorChange(in Color) {
// do something with color
}
auto slots = Slots!(void delegate(in Color), Color);
slots.connect(&onColorChange);
auto color =
struct A
{
import std.stdio;
File f;
}
struct B
{
A a;
import std.typecons;
mixin Proxy!a;
}
rdmd proxytest.d:
/Library/D/dmd/src/phobos/std/typecons.d(5055): Error:
'proxytest.A.~this' is not nothrow
/Library/D/dmd/src/phobos/std/typecons.d(5050): Error: function
'proxyt
On Wednesday, 3 February 2016 at 04:19:37 UTC, jmh530 wrote:
A few extra questions: 1) In other parts of the code I'm using
extern(System), but that doesn't work for these. Why is
extern(C) used for function pointers?,
extern(C) is only used with function pointers when it's needed.
It depe
On Wednesday, 3 February 2016 at 06:11:07 UTC, H. S. Teoh wrote:
I still can't come up with a compelling use case that would
justify using a const/immutable class member, that couldn't be
done by some other means, though. Especially since we're
talking about classes, we already have all the tra
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