import std.stdio;
class A
{
static int id = 0;
this()
{
writeln(typeid=, typeid(this));
writeln(id=,typeof(this).id); //how to get runtime type of
this ??
}
}
class B : A
{
static int id = 1;
}
class C : A
{
static int id = 2;
On 2013-10-04 10:03, Zhouxuan wrote:
import std.stdio;
class A
{
static int id = 0;
this()
{
writeln(typeid=, typeid(this));
writeln(id=,typeof(this).id); //how to get runtime type of
this ??
}
}
class B : A
{
static int id = 1;
}
class C : A
{
On Friday, 4 October 2013 at 08:23:11 UTC, Jacob Carlborg wrote:
On 2013-10-04 10:03, Zhouxuan wrote:
import std.stdio;
class A
{
static int id = 0;
this()
{
writeln(typeid=, typeid(this));
writeln(id=,typeof(this).id); //how to get runtime
type of
this ??
}
}
On Friday, 4 October 2013 at 08:23:11 UTC, Jacob Carlborg wrote:
On 2013-10-04 10:03, Zhouxuan wrote:
import std.stdio;
class A
{
static int id = 0;
this()
{
writeln(typeid=, typeid(this));
writeln(id=,typeof(this).id); //how to get runtime
type of
this ??
}
}
I am afraid if you want true polymorphic behavior, `id` needs to
become a virtual getter function. D runtime reflection is quite
lacking in that are.
On 03/10/13 20:06, Jonathan M Davis wrote:
I don't see the problem. If you want the standard set of macros, then look at
the docs. If you want more, then add your own. We need more in the Phobos
docs, so we define more - many of which wouldn't even make sense as standard
macros. I see no reason
On 2013-10-04 10:42, Zhouxuan wrote:
Unfortunately it doesn't work if C inherits from B.
What you need is a template constructor in B, just as in A. But it seems
it's not possible to forward the template type to the base class.
--
/Jacob Carlborg
On Thursday, 3 October 2013 at 21:58:18 UTC, Jonathan M Davis
wrote:
On Thursday, October 03, 2013 22:57:22 Craig Dillabaugh wrote:
On Thursday, 3 October 2013 at 19:49:07 UTC, Jonathan M Davis
wrote:
On Thursday, October 03, 2013 20:57:20 Craig Dillabaugh
wrote:
On Thursday, 3 October
So, I'm about to start working on a new project, but I want to be
able to check for any D build errors without actually building
anything. I was wondering if anything like this would be possible.
If you did
dmd -c -o- *.d
that'd be as close as you can get (I think). -c means compile
only, don't link, and -o- means don't write the object file, so
it will skip the final part of building.
and *.d of course is the files in your project. Compiling them
all at once by putting them all on
On Friday, 4 October 2013 at 17:49:49 UTC, Jeremy DeHaan wrote:
So, I'm about to start working on a new project, but I want to
be able to check for any D build errors without actually
building anything. I was wondering if anything like this would
be possible.
I'm dumb. I missed some stuff on
Hello! Sorry if I appear to be posting a lot of questions (if you
saw my LLVM one, thanks again for the help) I'm trying to throw
some things together and learn a lot.
So I've been researching compilers and virtual machines recently,
I've managed to implement some fairly good front ends and
On Friday, 4 October 2013 at 19:58:54 UTC, Alan wrote:
fault) I've seen ways to do this in Linux and Windows in C/C++
but I have no clue where to start with this in D.
You can often almost copy+paste code from C into D and get it
working. My guess is the C examples use mmap on Linux and
BTW I'm not sure if GC.malloc supports the executable flag or
not. A quick search at druntime's source doesn't turn up
anything, but maybe I missed it.
Regardless though, the operating system functions definitely work
and knowing about them are useful anyway since it makes using C
examples
Interesting... I was not aware of those functions in the D
runtime, thanks for the help! Just some simple conditional
compile statements will probably do the job!
On Friday, 4 October 2013 at 20:26:35 UTC, Alan wrote:
Interesting... I was not aware of those functions in the D
runtime
Technically, they're part of the operating system. If druntime
didn't provide them, you could also just add
// copy pasted from msdn
extern(Windows)
LPVOID VirtualAlloc(
Simple example:
struct Circle {
double radius;
this(double radius) { this.radius = radius; }
this(double diameter) { this.radius = diameter / 2; }
}
void main() {
auto c1 = Circle(radius = 1.0);
auto c2 = Circle(diameter = 2.0);
assert(c1.radius == c2.radius);
}
Great! So that's exactly what happens! Does anyone have an
example of how to maybe print a character to the string with a
system call? I'm on a 64bit intel pentium and running ubuntu
linux. Any help is appreciated, thanks again Adam.
On Friday, 4 October 2013 at 20:50:09 UTC, Alan wrote:
Great! So that's exactly what happens! Does anyone have an
example of how to maybe print a character to the string with a
system call? I'm on a 64bit intel pentium and running ubuntu
linux. Any help is appreciated, thanks again Adam.
On Friday, 4 October 2013 at 21:10:30 UTC, Adam D. Ruppe wrote:
On Friday, 4 October 2013 at 20:50:09 UTC, Alan wrote:
Does anyone have an example of how to maybe print a character
to the string with a system call?
yeah on Linux the assembly is:
string a = hello!;
auto sptr = a.ptr;
On Friday, 4 October 2013 at 20:50:09 UTC, Alan wrote:
Does anyone have an example of how to maybe print a character
to the string with a system call?
yeah on Linux the assembly is:
string a = hello!;
auto sptr = a.ptr;
auto slen = a.length;
version(D_InlineAsm_X86)
asm { // 32 bit
Hi All,
I did search but I cannot find it anywhere. All I want to do
is add 300 seconds to the output of Clock.currTime. So basically
if Clock.currTime equals 2013-Oct-04 17:19:31.3338333 then I want
to subtract 300 seconds from that to get the time that it was 300
seconds ago. In other
On Friday, 4 October 2013 at 21:50:31 UTC, Brad Anderson wrote:
On Friday, 4 October 2013 at 21:46:43 UTC, JohnnyK wrote:
Hi All,
I did search but I cannot find it anywhere. All I want to do
is add 300 seconds to the output of Clock.currTime. So
basically if Clock.currTime equals
On Friday, 4 October 2013 at 21:46:43 UTC, JohnnyK wrote:
Hi All,
I did search but I cannot find it anywhere. All I want to do
is add 300 seconds to the output of Clock.currTime. So
basically if Clock.currTime equals 2013-Oct-04 17:19:31.3338333
then I want to subtract 300 seconds from
I'm just playing at this point and I'm pretty sure these hacks
won't quite work or might even be kinda useless... but one way to
avoid the hassle of making the machine code yourself is to get
the compiler to do it.
So we'll write our function (just 32 bit here, the 64 bit didn't
work and I'm
On Friday, 4 October 2013 at 22:00:36 UTC, Adam D. Ruppe wrote:
I'm just playing at this point and I'm pretty sure these hacks
won't quite work or might even be kinda useless... but one way
to avoid the hassle of making the machine code yourself is to
get the compiler to do it.
So we'll
On Friday, 4 October 2013 at 22:00:36 UTC, Adam D. Ruppe wrote:
I'm just playing at this point and I'm pretty sure these hacks
won't quite work or might even be kinda useless... but one way
to avoid the hassle of making the machine code yourself is to
get the compiler to do it.
So we'll
Wow. I'm really embarrased. But thanks guys.
On Wednesday, 2 October 2013 at 21:57:08 UTC, Ali Çehreli wrote:
On 10/02/2013 02:44 PM, Paul wrote:
I would like to open a file before I enter a function and be
able to
write to it while I'm in the function. I'm not having any
luck.
Shared?
On Friday, 4 October 2013 at 21:54:19 UTC, Brad Anderson wrote:
On Friday, 4 October 2013 at 21:50:31 UTC, Brad Anderson wrote:
On Friday, 4 October 2013 at 21:46:43 UTC, JohnnyK wrote:
Hi All,
I did search but I cannot find it anywhere. All I want to do
is add 300 seconds to the output of
On Saturday, October 05, 2013 03:31:33 JohnnyK wrote:
Wow I appreciate the quick response. Ok I have seen this before.
What is the dur? Where is dur defined? Also I am confused how
300.seconds would work. How can a literal number have properties?
dur is in core.time as are the aliases for each
On Friday, October 04, 2013 16:12:14 Craig Dillabaugh wrote:
I guess the more fundamental question is, what is the purpose of
the documentation? Is it a quick reference for D users, or is it
a resource for people trying to learn the language? I learned
C++ using Qt, largely from their online
On Saturday, 5 October 2013 at 01:31:35 UTC, JohnnyK wrote:
Wow I appreciate the quick response. Ok I have seen this
before.
What is the dur? Where is dur defined? Also I am confused
how 300.seconds would work. How can a literal number have
properties?
On Friday, October 04, 2013 22:40:35 deed wrote:
Simple example:
struct Circle {
double radius;
this(double radius) { this.radius = radius; }
this(double diameter) { this.radius = diameter / 2; }
}
void main() {
auto c1 = Circle(radius = 1.0);
auto c2 = Circle(diameter = 2.0);
So, I was away from active D development for a while, and I'm having
trouble finding info about how to use UDAs. I can see the basics, like
how to apply a UDA to a symbol, but now how to do specific things, like:
* Check to see if a specific attribute exists
* Check to see if an attribute of a
On Saturday, 5 October 2013 at 02:51:21 UTC, Matt Soucy wrote:
* Check to see if a specific attribute exists
* Check to see if an attribute of a specific type exists,
something like:
The helper functions from my web.d might help:
// checks to see if it has one of a type
// static
On 10/04/2013 11:04 PM, Adam D. Ruppe wrote:
On Saturday, 5 October 2013 at 02:51:21 UTC, Matt Soucy wrote:
* Check to see if a specific attribute exists
* Check to see if an attribute of a specific type exists, something like:
The helper functions from my web.d might help:
// checks to
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