On 06/20/2016 11:33 PM, Joerg Joergonson wrote:
On Monday, 20 June 2016 at 10:38:12 UTC, ag0aep6g wrote:
[...]
Is your position that Button!SliderItem should derive/inherit from
Button!ButtonItem, enabling the cast, or do you suppose the cast
should succeed because the fields are compatible?
I
On 06/21/2016 10:48 PM, Lodovico Giaretta wrote:
struct Wrapper(T)
{
private T wrapped;
template hasAssignableProperty(string name, Arg)
{
enum bool hasAssignableProperty = is(typeof(
(ref T val, ref Arg arg)
{
On 06/26/2016 05:37 PM, Smoke Adams wrote:
system("cls") works but executeShell doesn't. system is depreciated.
Unsolicited spelling correction: no 'i' in "deprecated".
What's going on? The docs say that it creates a new process. I simply
want to clear the console!
`system` directly prints
On 06/29/2016 07:00 PM, Guido wrote:
On another topic, tuples seem to have a major problem as well.
Tuple!(float, float, float) test;
Tuple!(float, float, float) [] array_data;
test[0] = 1.0; // works
array_data[i][0] = 1.0; // doesn't work.
Works just fine for me, if I add the missing piece
On 06/29/2016 08:59 PM, jmh530 wrote:
For instance, in the bar function below, I have to
explicitly instantiate the inner function template.
[...]
template bar(T)
{
T bar(U)(T x, U y)
{
return x + cast(T)y;
}
}
void main()
{
int a = 1;
long b = 2;
auto
On 06/30/2016 04:39 AM, JS wrote:
struct EnumToFlags(alias E)
{
import std.traits, std.conv, std.string, std.algorithm, std.array;
static if (E.max < 8)
alias vtype = ubyte;
Convention says: Capitalize user-defined type names. So it should be
"Vtype" or maybe "VType" instea
On 07/01/2016 12:35 PM, Nordlöw wrote:
What's the preferred way of reacting to emptyness in the members front,
back, popFront, popBack --- using assert, enforce, throw, or simply
relying on range-checking in the _store?
I think assert is the most common way of checking. Simply ignoring the
pos
On 07/04/2016 12:00 AM, MMJones wrote:
I like the term var better than auto. Is there a way to alias auto?
no
On 07/04/2016 01:20 AM, Hiemlick Hiemlicker wrote:
I have thread. It locks up. If I changed from a bool val it is using
from shared to __gshared it works. I checked the address inside and
outside of the thread and they are different for shared and same for
__gshared.
[...]
shared bool isPa
On 07/04/2016 07:16 AM, Hiemlick Hiemlicker wrote:
But static isn't per instance, is it?
Sure isn't. __gshared isn't either.
That means every thread created will have the same value of Paused.
Calling Pause will pause all threads. That can't be right.
I don't know what exactly you're doing
On 07/05/2016 12:47 PM, Jack Applegame wrote:
ttt.d
import std.string;
void main() {
lastIndexOf("aa","bb");
}
rdmd ttt.d
compiles successfully without any errors or warnings
rdmd -dw ttt.d
compiles successfully without any errors or warnings
rdmd -de ttt.d
/usr/include/dmd/phobos/std
On 07/05/2016 07:25 AM, ketmar wrote:
cast `shared` away. yes, this is how you supposed to use it now: cast it
away.
after having ensured thread safety that is
On 07/05/2016 08:16 PM, Charles Hixson via Digitalmars-d-learn wrote:
What I'm looking for is the opposite of the "FromUnixTime" function.
That would be the "toUnixTime" method then, I suppose.
https://dlang.org/phobos/std_datetime.html#.SysTime.toUnixTime
On 07/07/2016 12:33 PM, Basile B. wrote:
Do you think it's a bug ?
Yes.
On 07/09/2016 12:33 AM, jmh530 wrote:
I'm trying to create a tuple of variadic length containing structs with
mixed types. So for instance, given
struct Foo(T, U)
{
T x;
U y;
}
I want to create something like
Tuple!(Foo!(type1, type2), Foo!(type1, type3), ..., Foo!(type1, typeN)) x;
On 07/09/2016 10:32 PM, phant0m wrote:
As far as I know, AA implemented as a hashtable. So, will there be two
searches performed (one search for each line)?
records[3].value = 10;
records[3].name = "name";
Yup. A good optimizer may be able to eliminate one, but conceptually
there are two looku
On 07/10/2016 10:31 PM, Lodovico Giaretta wrote:
That said, if you want char[] -> string or wchar[] -> wstring you can
use assumeUnique, which casts a mutable array to an immutable one.
After having ensured that the array is actually unique. That is, there
must not be any other references to i
On 07/10/2016 11:17 PM, Adam Sansier wrote:
The problem is things like
https://msdn.microsoft.com/en-us/library/windows/desktop/ms724902(v=vs.85).aspx
require data buffers to be used. I can't just plug in a wstring to it,
can I?
You can't.
`First-chance exception: core.exception.UnicodeExc
On 07/10/2016 11:26 PM, Adam Sansier wrote:
For example, I'm trying to compare a wchar buffer with a wstring using
slices:
x[0..$] == y[0..$]
It fails. I think because x has length 1024. If do
x[0..y.length] == str[0..y.length]
it fails, also because y has length 1024(since it was generated f
On 07/10/2016 11:38 PM, Adam Sansier wrote:
Using this code
import core.stdc.wchar_; // For wcslen.
Hint: D has special syntax for importing only specific parts of a module:
import core.std.wchar_: wcslen;
wstring toWstring(wchar[] value)
{
return value ? cast(wstring) value[0..wc
On 07/11/2016 02:31 AM, Adam Sansier wrote:
idup uses the gc, I am currently just malloc'ing the string and allowing
for the memory leak. This is somewhat acceptable given that this code
should rarely be called and generally only at startup. It will generally
waste only a few KB of memory.
If y
On 07/11/2016 11:31 AM, Ali Çehreli wrote:
// Another one that combines multiple range algorithms
import std.range : iota;
import std.algorithm : map;
assert(7.iota.map!(i => i % 2 ? '=' : '-').equal("-=-=-=-"));
An alternative without those scary modulo and ternary operator
On 07/11/2016 02:28 PM, zodd wrote:
Suppose I have a class with a few protected functions. I want to let
another class from the same package call these functions. Thus I've
added a "package" attribute and got the following:
Error: conflicting protection attribute 'package' and 'protected'
How ca
On 07/11/2016 02:42 PM, Sam wrote:
#0 0x00670a50 in onInvalidMemoryOperationError ()
#1 0x0068657b in gc.gc.GC.malloc() ()
#2 0x0067a4d2 in _d_newclass ()
#3 0x00670d53 in _d_assert ()
#4 0x0053d8e2 in
std.typecons.__T10RefCountedTS4cram8wrappers54__T5
On 07/12/2016 11:09 AM, Dsby wrote:
How can i call @system function in a @safe function?
You can't. You can mark the @safe function @trusted [1] instead.
@trusted functions are considered memory-safe by the compiler and can be
called from @safe code, but they can use @system features and call
On 07/12/2016 01:40 PM, Bahman Movaqar wrote:
Yes. I'm working on Stockman[1] a playground to learn D.
In file `etl.d`, line 110 [2], if I change the line to
auto refInvoice = group[1].takeOne();
the file will not compile. I have attached the compile error to this
message.
Do you also ad
On 07/12/2016 04:04 PM, Seb wrote:
D is entirely driven by
highly motivated volunteers. (this will change soon with the new D
foundation)
Does the foundation have plans to hire programmers? That's news to me.
On Thursday, 14 July 2016 at 19:28:23 UTC, Andrey wrote:
On Thursday, 14 July 2016 at 19:27:14 UTC, Andrey wrote:
[...]
struct Sigmoid(T)
{
[...]
}
struct Neurons_layer(T = float, size_t neurons_num = 0, F =
Sigmoid!T)
if(isFloatingPoint!T && is(typeof(F.Function)))
{
[...]
pri
On 07/15/2016 10:11 AM, nik wrote:
One thing I cant figure out/don't know if is possible is to have a type
that takes "void" (see last unittest)
[...]
Result type:
struct Result(T, E)
{
this(inout T result) inout
{
_result = result;
_is_result = true;
}
t
On 07/15/2016 12:54 PM, dom wrote:
i just had a scenario like the one below. when calling .array on the
filterresult dmd goes nuts because of the init() function in Players.
Renaming to initialize() solved the problem.
Solution: As .init is used for struct initialization and such
(https://dlang.
On 07/15/2016 10:29 AM, maik klein wrote:
There are two things that bothered me for quite some time
Interior immutability:
Consider a something like this
https://dpaste.dzfl.pl/fa5be84d26bc
The implementation is totally wrong and it doesn't make sense, but it
shows that Rc can not be const/im
On 07/15/2016 02:51 PM, maik klein wrote:
Thanks I didn't know that you could have type qualifiers inside
templates, D still surprises me sometimes.
Qualifiers are part of the type. So wherever you can have a type, you
can have a qualified type.
I don't think it is practical to call move on
On 07/19/2016 02:30 PM, celavek wrote:
Hi,
I'm trying the following code:
class counter
{
public:
final ulong[char] nucleotide_counts () const
{
return cached_counts;
}
private:
ulong[char] cached_counts;
}
void main()
{
}
I get the following error from the comp
On 07/20/2016 06:36 AM, Rufus Smith wrote:
Does D offer any solutions to generate code dynamically?
I don't think so.
I would like to
order based on optimal strategies. This requires effectively hard coding
the execution path.
A simple example,
if (x == true)
foo();
else
bar();
can
On 07/20/2016 06:18 PM, Mike Parker wrote:
The relevant lines I quoted from the docs above explain quite clearly
that it's because they are multi-byte formats. Indexing them is not
inefficient, it simply makes no sense. What does it mean to take the
value at index i when it is part of a multi-byt
On 07/23/2016 01:05 PM, Etranger wrote:
1- Is there a cleaner way to do it ? I had to use struct because I want
every thing to happen at compile time and on the stack (without gc). And
I had to use string mixins because template mixin does not work the way
I tried to use it ( see the error last l
On Monday, 25 July 2016 at 12:37:18 UTC, Bahman Movaqar wrote:
Error: incompatible types for ((r) !is (null)):
'MapResult!(__lambda2, SInvoiceLine[])' and 'typeof(null)'
Of course if I remove `r !is null` from the `in` block,
everything will work. But I'm curious; how can I check for a
`n
On 07/26/2016 03:09 PM, Richard wrote:
if(n%p==0)
n/=p;
else
p+=1;
[...]
However, if I replace the content of the for loop with the ?: operator,
the program is not
correct anymore (largestPrimeFactor(4) now returns 3):
[...]
n%p==0 ? n/=p : p+=1
On 07/26/2016 09:30 PM, ParticlePeter wrote:
So how can I achieve my goal the right way?
Here's one with CTFE:
void processMember(T, ignore...)()
{
import std.algorithm: canFind, filter;
import std.meta: aliasSeqOf;
enum selectedMembers = aliasSeqOf!(
[__traits(allMem
On 07/27/2016 09:19 PM, Dechcaudron wrote:
struct Foo
{
[...]
void ping() shared
{
[...]
}
void fire()
{
spawn(&explode);
}
void explode() shared
{
ping();
}
}
void main()
{
auto a = Foo(1, 2);
a.fire();
thread_joinAll();
}
On 07/28/2016 12:38 AM, Dechcaudron wrote:
Giving my 20 votes to the issue (are votes even taken into account?). At
least now I know the source of attribute-enforcements breakdown is
basically delegate management. That should help me out enough so I don't
have this issue anymore.
Thanks a bunch.
On 07/29/2016 02:15 PM, Mike Parker wrote:
And if it is a cross-platform library that is stdcall on Windows and
cdecl elsewhere:
extern(C) void fun();
extern(System), no?
On 07/30/2016 07:00 AM, 岩倉 澪 wrote:
auto mem = malloc(2^^31);
2^^31 is negative. 2^^31-1 is the maximum positive value of an int, so
2^^31 wraps around to int.min.
Try 2u^^31.
On 07/31/2016 08:43 PM, Rufus Smith wrote:
e.g., I have a nogc container and a remove(T obj). I can't search for
obj and remove it because opEquals is not marked nogc. So I need an
alternative that is somewhat robust.
Jonathan M Davis has already mentioned his plans to templatize
object.opEqua
On 07/31/2016 11:31 PM, Darren wrote:
If I try and cast it to dchar, I get messed up output,
Because it gives you a dchar with the numeric value 5 which is some
control character.
and I'm not sure
how to use toChars (if that can accomplish this).
value = i.toChars.front;
toChars conv
On 08/03/2016 09:40 PM, Andre Pany wrote:
Thanks for the info. Yes, I forgot the () for new Object;
Adding the () for new Object() still returns the same error.
`new Object` without parentheses is perfectly fine.
On 08/05/2016 12:25 PM, Nordlöw wrote:
Should range members front() and back() assert() or throw() on emptyness?
If it should assert() doesn't that lead to unsafer code in release mode?
What's the consensus here?
It's an error in the program when front/back is called on an empty
range. Every
On 08/07/2016 06:42 PM, Gary Willoughby wrote:
I need a @nogc version of hashOf(). Here's one i'm currently using but
it's not marked as @nogc.
https://github.com/dlang/druntime/blob/master/src/object.d#L3170
That seems to be an oversight.
https://github.com/dlang/druntime/pull/1624
On 08/07/2016 07:10 PM, ag0aep6g wrote:
https://github.com/dlang/druntime/pull/1624
Has been merged. Is going to be part of 2.072.
On 08/07/2016 10:01 PM, Engine Machine wrote:
@nogc void foo(void delegate(int x) @nogc f);
fails with the @nogc.
Compiles just fine for me.
2nd, I cannot use a delegate because of the @nogc context,
Delegates don't necessarily need a GC allocation. They only need it when
they need a clos
On 08/08/2016 12:08 AM, Engine Machine wrote:
On Sunday, 7 August 2016 at 20:48:29 UTC, ag0aep6g wrote:
[...]
Delegates don't necessarily need a GC allocation. They only need it
when they need a closure. Delegates of methods don't need closures.
And when you pass the delegate in a `scope` param
On 08/08/2016 02:42 AM, Engine Machine wrote:
So, what about passing in the lambda verses the temp variable?
Nothing. I didn't see a case where it worked one way but not the other.
If you have code where adding a variable makes things work, please post
a complete test case.
[...]
My code i
On 08/08/2016 10:30 AM, Cauterite wrote:
See: https://dpaste.dzfl.pl/2ec6780d4b25
That code is short enough to post it here directly. For easier
reference, this is it:
struct S {
void f1() {
auto x = &this;
};
static void f2() {
On 08/08/2016 04:36 AM, Engine Machine wrote:
This really makes no sense
Error: template Mem cannot deduce function from argument types
!(cast(eException)1280L, "main.d", 38u, "main.WinMain")(int), candidates
are:
Mem(T, B = eX, string file = __FILE__, uint line = __LINE__, string func
= __FUNCT
On 08/08/2016 12:14 PM, Cauterite wrote:
On Monday, 8 August 2016 at 10:05:58 UTC, ag0aep6g wrote:
The first assert compares the return types of f1 and f2. They both
return `void`, so everything's fine there.
I think you're mistaken about this. typeof(S.f1) definitely gives the
type of the fun
On 08/08/2016 09:57 PM, Alexsej wrote:
// content in ISO-8859-1 to UTF-8 encoding but I lose
//the Cyrillic "отсутствует или неверно задан параметр"
// I get it "оÑÑÑÑÑÑвÑÐµÑ Ð¸Ð»Ð¸ невеÑно
задан паÑамеÑÑ"
// How do I change the encoding to UTF-8
On 08/08/2016 11:11 PM, ag0aep6g wrote:
Why on earth does transcode only accept immutable characters for input?
https://github.com/dlang/phobos/pull/4722
On 08/09/2016 12:05 AM, Alexsej wrote:
//header from server
server: nginx
date: Mon, 08 Aug 2016 22:02:15 GMT
content-type: text/xml; Charset=utf-8
content-length: 204
connection: keep-alive
vary: Accept-Encoding
cache-control: private
expires: Mon, 08 Aug 2016 22:02:15 GMT
set-cookie: ASPSESSION
On 08/10/2016 12:10 AM, Engine Machine wrote:
I try to use a mixin template and redefine some behaviors but D includes
both and then I get ambiguity. I was sure I read somewhere that when one
uses mixin template it won't include what is already there?
mixin template X
{
void foo() { }
}
stru
On 08/10/2016 10:54 PM, Steven Schveighoffer wrote:
The issue is that it tries using [] on the item to see if it defines a
range-like thing. Since you don't define opSlice(), it automatically
goes to the subrange.
This breaks for int[] as well as Array.
If I add opSlice to your code (and return
On 08/11/2016 06:15 AM, Engine Machine wrote:
void foo(@nogc void delegate())
doesn't work.
Put it after the parameter list, like so:
void foo(void delegate() @nogc)
On 08/12/2016 05:23 PM, Cauterite wrote:
void main() {
[...]
};
No semicolon there, please.
On 08/12/2016 07:33 PM, Cauterite wrote:
Why would I not terminate a declaration with a semi-colon?
Why should a declaration not end in a semi-colon just because the last
token is a brace?
Why should I not tell the lexer precisely where my declaration ends
instead of relying on whatever other tok
On 08/13/2016 09:23 PM, Engine Machine wrote:
Then it should error if it doesn't accept ';'. If it accepts it then it
is legal.
It is legal, yes. It's also pointless and misleading. It should be
pointed out for the benefit of the author, as they may have a
misconception about D syntax. It sho
On 08/14/2016 04:27 PM, Uranuz wrote:
Greatings!
I need help with these lines bellow. I don't understand why it doesn't
compile. Is it bug somewhere in Phobos or compiler? Or just I wrote smth
wrong?
//-
struct A
{
import std.algorithm: map;
import std.array: array;
import std
On 08/16/2016 11:01 PM, cy wrote:
auto failhard(T)(T iter) {
[...]
writeln("We take 1 from it...");
writeln(iter.take(1));
This line may or may not pop the first element of the original iter.
That's because copying a range may or may not be same as calling .save
on it. For many forw
On 08/16/2016 11:34 PM, ag0aep6g wrote:
As for the example, you can rewrite it like so:
auto failhard(T)(T iter) {
import std.stdio;
import std.range: take, drop, refRange;
writeln("We have some range:");
writeln(typeid(T));
writeln("We take 1 from it...");
writeln(
On 08/16/2016 11:41 PM, ag0aep6g wrote:
My apologies, that actually prints "[0, 1, 2, 3]" in the array case. I
don't what's going on. That should work. Maybe I'm misunderstanding
something about refRange.
Oh, I see. `take` is being clever. When possible, it slices the given
range instead of po
On 08/17/2016 02:08 PM, Eugene Wissner wrote:
I have a problem, that .stringof doesn't return what I'm expecting.
Consider the following:
template A(string T)
{
enum A : bool
{
yes = true,
}
}
void main()
{
A!"asdf" a1;
typeof(a1) a2;
mixin(typeof(a1).stringof ~
On 08/17/2016 08:38 PM, Engine Machine wrote:
On Wednesday, 17 August 2016 at 08:37:32 UTC, Lodovico Giaretta wrote:
[...]
You mean something like:
struct MySequence(Args...)
{
enum length = Args.length;
alias args = Args;
}
alias x = MySequence!(a, b, MySequence!(c, d));
static asse
On 08/17/2016 09:21 PM, Lodovico Giaretta wrote:
import std.traits: TemplateOf;
static if (__traits(isSame, TemplateOf!(x.args[2]), MySequence))
{
...
}
std.traits.TemplateOf extracts the symbol representing the
uninstantiated template.
__traits(isSame, symbol1, symbol2) evaluates at compil
On 08/19/2016 02:42 PM, Eugene Wissner wrote:
fullyQualifiedName doesn't work with BitFlags for example:
I think that qualifies as a bug, because fullyQualifiedName is supposed
to be usable in code generation.
On 08/19/2016 05:36 PM, David Nadlinger wrote:
This is a misconception. Neither .stringof nor fullyQualifiedName should
*ever* be used in code generation.
The spec itself recommends fullyQualifiedName for code generation:
Note: Using .stringof for code generation is not recommended, as the in
On 08/21/2016 12:11 AM, Engine Machine wrote:
Is there a way to rebind the arguments of a template?
template foo(X)
{
// X is like A!(a,b,c)
Y = Rebind!(X,d,e,f);
// Y is like A!(d,e,f);
}
foo(A!(a,b,c));
?
template Rebind(alias instance, newArgs...)
{
import std.traits: Templat
On 08/21/2016 09:29 PM, Engine Machine wrote:
I know you like to play the right or wrong game, but did you ever learn
that a single example does not prove the truth of something?
But you can show in a single example that something doesn't work. You
tried to do that, and you did it with a simpl
On 08/21/2016 10:06 PM, cy wrote:
in the module scope, you start with:
auto pattern = ctRegex!"foobar";
and you substitute with:
typeof(regex("")) pattern;
static this() {
pattern = regex("foobar");
}
I may be missing the point here, but just putting `auto pattern =
regex("foobar");` at mod
On 08/22/2016 12:06 AM, Engine Machine wrote:
T!()'s "data" is specified in the class just like all the other
derivations. I don't want to have to specify an external base class as
in your InstaniateOrBase. Why? Because!!! (There should be no need to,
and if one goes this route of creating classe
On 08/22/2016 08:04 PM, Engine Machine wrote:
How do you seriously think this is cleaner/simpler? You have two
classes. Their is no uniformity between them. You have uniformity
between all the derived classes then have a special case for the base
class. A certain easy to follow pattern is set up
On 08/22/2016 08:54 PM, Engine Machine wrote:
Yeah, but a name means nothing. Change it if you want ;)
Even with a better name it still requires a good amount of thinking by
the reader to see what's going on.
[...]
What it achieves is a uniform way to create a hierarchical relationship
with
On Monday, 22 August 2016 at 21:46:35 UTC, Engine Machine wrote:
I'm sorry if it confuses you... it doesn't confuse me.
You needed quite some help to get this thing to work. And you
made some mistakes and wrong statements in the process. That's
perfectly fine, but please don't act as if Jack
On 08/23/2016 06:06 AM, cy wrote:
On Sunday, 21 August 2016 at 21:18:11 UTC, ag0aep6g wrote:
I may be missing the point here, but just putting `auto pattern =
regex("foobar");` at module level works for me.
Really? I thought global variables could only be initialized with static
stuff availab
On 08/23/2016 03:23 AM, Engine Machine wrote:
On Monday, 22 August 2016 at 22:52:28 UTC, ag0aep6g wrote:
[...]
Simply not replying is an option, too. It may be a bit less
polite, but it's better than escalating things.
True, but then you should also take your own advice.
Yeah, I'm going to
On 08/24/2016 03:07 AM, cy wrote:
Then what's ctRegex in there for at all...?
Optimization.
ctRegex requires that the pattern is available as a compile time
constant. It uses that property to "generate optimized native machine code".
The plain regex function doesn't have such a requirement.
On Wednesday, 24 August 2016 at 19:16:56 UTC, jmh530 wrote:
I'm a little confused on why pow behaves so differently when
switching from an int to a uint for the exponent.
import std.math : pow;
import std.stdio : writeln;
void main()
{
float x = 2;
int y1 = 1;
uint y2
On 08/27/2016 07:35 PM, cy wrote:
When I saw `auto a = b;` at the module level, I thought that b had to be
something you could evaluate at compile time.
That's right.
But I guess it can be a
runtime calculated value, acting like it was assigned in a a static
this() clause,
No, that's not ri
On 08/30/2016 10:41 PM, wobbles wrote:
class Node(T, alias func = (T t => t*t))(){
//whatever
}
//instantiate
Node!(int) intNode;
Node!(float) floatNode; // fails as lambda func expects an int.
Am I doing something wrong or is this a bug?
Proper test case:
class Node(T, alias func = (
On 08/30/2016 11:28 PM, wobbles wrote:
I'll have to try find a workaround for now :/
This seems to work and isn't too ugly:
class Node(T, alias func) {/*...*/}
alias Node(T) = Node!(T, (T t) => t*t);
On 08/30/2016 11:28 PM, wobbles wrote:
I'll have to try find a workaround for now :/
This also seems to work, but has a slightly different meaning:
class Node(T, alias func = t => t*t) {/* ... */}
The default func is a template here. Equivalent to this:
auto square(T)(T t) { r
On 08/31/2016 09:23 PM, Yuxuan Shui wrote:
Correct me if I'm wrong. But I believe this is only true when the source
code of function is not available. Otherwise the compiler should always
know if a function is actually @nogc or not.
Attributes are only inferred in certain cases where the source
On 09/05/2016 03:44 PM, Basile B. wrote:
°°
module runnable;
import std.stdio;
struct Foo
{
void delegate(int) event1;
void delegate(int,int) event2;
void delegate(int,ref int) event3;
}
struct Handler
{
void handle(A...)(A a){writeln(a);}
void h
On 09/05/2016 04:00 PM, ag0aep6g wrote:
You can pass the delegate type itself by alias.
[...]
void handlef(F)(Parameters!F a){writeln(a);}
Don't know why I wrote "by alias". Clearly no alias there.
On 09/04/2016 12:07 AM, dan wrote:
Are there any FOSS tools for doing dependency analysis of (e.g.) all the
d files in a directory, to let you know when a .o file needs to be
regenerated?
This presumably would depend mostly on the import statements (including
import of any file to be used in str
On 09/10/2016 10:23 AM, Q. Schroll wrote:
Is there a difference between inferred and annotated attributes?
Example:
struct X(T)
{
this(S)(in S[] arr) // inferred pure
{ }
}
void main() pure
{
X!uint mut = [ 1, 2 ]; // proves inference (cf. main is pur
On 09/10/2016 04:10 PM, pineapple wrote:
I've got a struct and it would be very convenient if I could specify
what happens when I write `if(value)` - is this possible?
`if (value)` implies a cast to bool. Define opCast!bool and it gets called:
struct S
{
bool opCast(T : bool)() { retu
On 09/10/2016 04:29 PM, pineapple wrote:
Was this a recent addition to the language?
I don't think so.
On 09/12/2016 08:56 AM, Russel Winder via Digitalmars-d-learn wrote:
Which raises the question of whether:
x[]
and
x.dup
have the same result.
No. x[] is a nop for dynamic arrays. Only the array struct (pointer and
length) gets copied, as it always does. x.dup copies the a
On 09/17/2016 11:58 PM, Ryan wrote:
On Saturday, 17 September 2016 at 21:44:22 UTC, Stefan Koch wrote:
[...]
Post the program somewhere otherwise we cannot help.
[... code ...]
Reduced and filed: https://issues.dlang.org/show_bug.cgi?id=16506
On 09/25/2016 06:26 PM, Basile B. wrote:
Can we get an explanation from a compiler guy ? It seems the the switch
statement is already evaluated at compiled time...
Lodovico has already answered this.
It's just an ordinary `auto` return type function. The actual return
type is the common type
On 10/02/2016 10:33 PM, A D dev wrote:
When I compile single-file D programs, I don't want to keep the
generated object file (.OBJ, on Windows). I had checked the D compiler
options for this (using dmd --help), and IIRC, a few weeks ago, I had
used the -o- option (do not write object file) with a
On 10/03/2016 01:40 PM, deed wrote:
Unexpected auto-concatenation of string elements:
string[] arr = ["a", "b" "c"];// ["a", "bc"], length==2
int[] arr2 = [[1], [2] [3]];// Error: array index 3 is out of
bounds [2][0 .. 1]
// Error: array index 3 is ou
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