On Thursday, 30 June 2016 at 17:08:45 UTC, Jonathan Marler wrote:
Is there a way to have an associative array of const values? I
thought it would have been:
const(T)[K] map;
map[x] = y;
but the second line gives Error: cannot modify const
expression. I would think that the const(T)[K] would
On Thursday, 30 June 2016 at 00:25:53 UTC, Jonathan Marler wrote:
I'd like to hear peoples thoughts on the various solutions for
the following problem. Say you have some hierarchy of classes
like:
class GameObject {
// ...
}
class Entity : GameObject {
// ...
}
class Player : Entity {
On Thursday, 19 May 2016 at 20:44:54 UTC, ciechowoj wrote:
Is there D equivalent of C++'s mutable keyword? Like the one
that allows to modify a field of struct from constant method.
Or some alternative solution?
There isn't an equivalent of mutable keyword because D const
differs from C++
here:
https://github.com/QAston/transducers-dlang/blob/master/source/transduced/transducers.d#L797
you can see there various variants of doing the same operation,
using closure, function and struct.
On Thursday, 21 April 2016 at 15:22:15 UTC, Alex wrote:
Hi all!
timing my program with valgrind/cachegrind and using -vgc
option of the compiler found the message:
"using closure causes GC allocation"
The question is:
does the usage of the closure causes the GC allocation on every
usage of
On Monday, 28 March 2016 at 21:01:19 UTC, cy wrote:
I finally found the null pointer. It took a week. I was
assigning "db = db" when I should have been assigning "this.db
= db". Terrible, I know. But...
I invoked db.find_chapter.bindAll(8,4), when db was a null
pointer. There was no null
On Wednesday, 16 March 2016 at 11:18:36 UTC, Johan Engelen wrote:
Hi all,
I've found discussions, but not an actual "recommended"
solution for the problem of "statement is not reachable"
warnings in templates with early returns, e.g.:
```
bool nobool(T...)() {
foreach (i, U; T) {
On Wednesday, 16 March 2016 at 17:08:20 UTC, Johan Engelen wrote:
On Wednesday, 16 March 2016 at 11:47:35 UTC, QAston wrote:
import std.meta;
template isBool(U)() = is(U == bool);
static if (!allSatisfy!(isBool, T)) {
return true; // no longer emits a warning
}
Something like this should
On Friday, 21 June 2013 at 14:08:43 UTC, Sergei Nosov wrote:
Hi!
I've been thinking about how alias template parameters work and
I'm really confused =)
It makes perfect sense for literals, names, etc. But what I
can't get is how does it work for delegates.
If I have a function
auto
On Wednesday, 20 January 2016 at 00:50:49 UTC, Ali Çehreli wrote:
On 01/19/2016 04:22 PM, QAston wrote:
[...]
Is this it? If so, is it already in std.functional? (I could
not find it. :) )
auto appendMapped(alias f, R, T)(R r, T elem) {
r ~= f(elem);
return r;
}
int minus(int i
On Wednesday, 20 January 2016 at 14:01:23 UTC, QAston wrote:
To me this suggests that the dispatch by templated interface
type Visitor!(RETURN) doesn't work. IMO the order of interfaces
shouldn't matter here and the code should simply work.
Any ideas?
I'm on 2069.2 and when i remove one
Hi,
I have the following code:
interface Visitable(RETURN) {
RETURN accept(Visitor!RETURN);
}
interface Exp : Visitable!string, Visitable!int {
}
interface Visitor(RETURN) {
RETURN visitLit(Lit e);
RETURN visitAdd(Add e);
}
class Lit : Exp {
int val;
Hi,
I have the following code:
auto appendMapped(alias f, R, T)(R r, T elem) {
r ~= f(elem);
return r;
}
int minus(int i) {
return -i;
}
unittest {
int[] ar;
// here I do partial application of minus function
alias appendMinus(S,T) =
On Wednesday, 20 January 2016 at 00:12:16 UTC, Ali Çehreli wrote:
On 01/19/2016 03:37 PM, QAston wrote:
Hi,
I have the following code:
auto appendMapped(alias f, R, T)(R r, T elem) {
r ~= f(elem);
return r;
}
int minus(int i) {
return -i;
}
unittest {
int[] ar
On Friday, 14 August 2015 at 09:21:56 UTC, DarthCthulhu wrote:
I only want to access the logger object when the program is
compiled with the -debug option, so I don't want to pass it
along to the object constructor or set a member as a reference
to it (which is both tedious and pointless if
On Sunday, 2 August 2015 at 10:04:54 UTC, nikolai wrote:
Yes, I was so excited about Dlang that i forgot to paste the
error:
Here's the link to imagescreen http://prntscr.com/7zwe6h
Can't help you with your problem, but I have another tip:
Shift-right-click inside a dir- open cmd window here
On Monday, 3 August 2015 at 21:32:05 UTC, DLearner wrote:
Looks like 0-base is fixed, to avoid problems with existing
code.
But nothing stops _adding_ to the language by allowing
int[x:y] foo to mean valid symbols are foo[x], foo[x+1],...,
foo[y].
Plus rule that int[:y] means valid symbols
On Saturday, 1 August 2015 at 23:02:51 UTC, bachmeier wrote:
But what type of programming are you doing? Even after decades
of programming and trying out dozens of languages, zero-based
indexing still gets me at times when the arrays I work with
represent vectors and matrices. Especially when
On Thursday, 16 July 2015 at 07:43:10 UTC, Jonathan M Davis wrote:
[...]
On linux you can alter the limit by using ulimit command. -a
option shows the current limits.
On Sunday, 3 May 2015 at 17:35:42 UTC, Dennis Ritchie wrote:
Hi,
How can I rewrite this code to the D?
-
#include string
#include iostream
class A {
public:
std::string a() {
return std::string(foo);
}
};
class B {
public:
std::string b(){
return
How do i get aliases to overloads of a template method like
Class A
{
int a(T)(T tq,T tw);
int a(T)(T tq);
}
__traits(getOverloads, A, a(int))doesnt work
On Wednesday, 11 December 2013 at 10:49:43 UTC, bioinfornatics
wrote:
Hi,
Little question,
I'm looking a jdbc like in D ?
Does this exists ?
Thanks
https://github.com/buggins/ddbc - see readme for more info.
On Wednesday, 20 November 2013 at 11:07:27 UTC, seany wrote:
Is there any way to represent mixed data (of various types) as
a single array?
In scilab, we have list, and you can do list(integer, stringvar
) etc.
Can you do something similar in D? An idea is to use a struct
wil all
On Friday, 15 November 2013 at 15:27:45 UTC, Jacek Furmankiewicz
wrote:
One of the nice features of Go is that when you compile an app,
it pulls in ALL the dependencies (i.e. the full SDK + all
libraries your app depends on) and generates a single binary
(around 2 MB for a Hello World app).
On Friday, 15 November 2013 at 15:12:23 UTC, Alexandr Druzhinin
wrote:
15.11.2013 22:09, Adam D. Ruppe пишет:
You could make it work like this:
auto slice3 = array[
slice1.length + (slice1.ptr - array.ptr)
..
(slice2.ptr - array.ptr)];
On Saturday, 26 October 2013 at 22:56:20 UTC, TheFlyingFiddle
wrote:
I kind of did the same thing here in the Mockable mixin:
https://github.com/nomad-software/dunit Instead of wrapping i
simply extended the target class so i have access to
'super.bar()'. Then i can add the specialisation code
call that a simple example, but it's
all i have by hand:
https://github.com/QAston/DMocks-revived/blob/master/dmocks/object_mock.d
I use this technique to mock structs and final classes.
On Saturday, 26 October 2013 at 16:36:35 UTC, TheFlyingFiddle
wrote:
Is there a way to extract the source code of a method at
compiletime?
Short and to the point answer: no.
On Wednesday, 11 September 2013 at 22:15:07 UTC, Rainer Schuetze
wrote:
On 11.09.2013 23:42, Lemonfiend wrote:
On Wednesday, 11 September 2013 at 20:36:39 UTC, Rainer
Schuetze wrote:
On 11.09.2013 18:13, Lemonfiend wrote:
Oops, I forgot to say what I actually did.
I added derelict to
On Saturday, 27 July 2013 at 17:14:35 UTC, JS wrote:
I'd like to have foreach and inline if in templates:
inline if is available as std.traits.Select
On Wednesday, 30 May 2012 at 08:13:34 UTC, Sputnik wrote:
There is a build and/or package managment system for D2 that is
working?
I googled, and I only can find things like dsss or cmaked that
don't get updated from a long time ago.
I really need to manage to get a project to compile in
I'd like to dynamically load procedures from a dll in my app. To
load a symbol from a DLL i need it's mangled name. D currently
offers .mangleof which I currently use to generate the name. It
works very good, but only for short symbols. Is there any way to
get the final mangled name of a
On Tuesday, 16 July 2013 at 13:58:10 UTC, Adam D. Ruppe wrote:
The reason I snipped the implementations here is the backend is
under a more restrictive license so I don't want to get into
copying that. But with just what I've said here combined with
guess+check against dmd's output it might be
On Saturday, 13 July 2013 at 04:56:19 UTC, Jonathan M Davis wrote:
On Saturday, July 13, 2013 06:42:57 QAston wrote:
On Friday, 12 July 2013 at 20:46:21 UTC, ixid wrote:
Yes, I don't expect anyone to change their opinion though
frankly the anti-groups opinions feel more like attachment
On Saturday, 13 July 2013 at 04:42:58 UTC, QAston wrote:
Also, i don't know what's wrong with parens - 2 additional
keystrokes? I didn't see a for loop i a long time - ranges +
foreach are everywhere. And foreach is 4 chars more to type
than for :P.
Replying to myself, but well
I have a large enum in my code (opcodes for a protocol) - using
std.traits.EnumMembers gives me a recursive template error.
How can i increase max number recursive template expansions?
On Sunday, 7 July 2013 at 20:28:12 UTC, John Colvin wrote:
On Sunday, 7 July 2013 at 20:22:59 UTC, Simen Kjaeraas wrote:
On 2013-07-07, 21:55, QAston wrote:
I have a large enum in my code (opcodes for a protocol) -
using std.traits.EnumMembers gives me a recursive template
error.
How can i
On Tuesday, 11 June 2013 at 16:18:54 UTC, Adam D. Ruppe wrote:
I'd be extremely annoyed if that required a cast. It's bleeding
obvious that you want it to assign back there
To me u = u + k is as obvious as u += k, but that's probably not
a thing anyone would be much concerned about :)
On Sunday, 28 April 2013 at 17:18:48 UTC, Mike Wey wrote:
On 04/28/2013 04:32 PM, QAston wrote:
On Monday, 15 April 2013 at 18:10:00 UTC, Mike Wey wrote:
On 04/15/2013 05:45 PM, Josh wrote:
On Sunday, 14 April 2013 at 13:34:07 UTC, Mike Wey wrote:
So it looks like the shemas are installed
On Monday, 15 April 2013 at 18:10:00 UTC, Mike Wey wrote:
On 04/15/2013 05:45 PM, Josh wrote:
On Sunday, 14 April 2013 at 13:34:07 UTC, Mike Wey wrote:
So it looks like the shemas are installed properly.
You could try running the gsettings app from a different
location than
where it's
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