Hello, how to get name of my application (project) that we write
in dub.json? Is there any compile-time constant like __MODULE__?
Hello,
I can't compile this piece of code:
struct Object
{
void run(wstring ending, uint index)(int number)
{
}
}
void tester(alias callback, T)(int number, T object = null)
{
static if(is(T == typeof(null))) alias handler = callback;
else auto handler(wstring ending, uint i
Hi,
I have got this structure of my project:
parentapp
dub.json
source
common.d
childapp1
dub.json
source
app.d
somefile.d
childapp2
dub.json
source
app.d
The "childapp1" and "childapp2" are standanole s
On Saturday, 19 October 2019 at 18:54:28 UTC, Andre Pany wrote:
In dub.json of your child apps you need to add a dependency to
parentapp.
I added via "dependencies" parameter and after got this error:
"Detected dependency cycle".
Hello,
I have got a global constant immutable array:
immutable globalvalues = sort(cast(wstring[])["й", "ц", "ук",
"н"]);
Somewhere in program I want to check an existance:
globalvalues.contains("ук"w).writeln;
But get an error:
Error: template std.range.SortedRange!(wstring[], "a <
b").Sor
On Monday, 21 October 2019 at 20:44:29 UTC, Nicholas Wilson wrote:
works, so I guess contains doesn't work with immutable?
If you can do some more research into this and confirm it then,
please file a bug report.
As I understand - yes. It doesn't work with immutable object.
Also I see the same
Hello,
During compilation on linking stage I get strange errors (LDC):
lld-link: error: undefined symbol:
_D3std7variant__T8VariantNVmi56TSQBf8typecons__T5TupleTAyuTSQCgQCf__TQCaVmi32TSQCzQBu__TQBoTAQBmTQBqZQCbTQnTQCbZQDrZQCqTQBcTQCrZQEh4typeMxFNbNdNeZC8TypeInfo
referenced by E:\Programs\LDC2\im
On Tuesday, 22 October 2019 at 12:57:45 UTC, Daniel Kozak wrote:
Have you try to clean all caches? Try to remove .dub folder
I removed .dub folder but this error appears again.
Hello,
Why this doesn't work?
import std;
struct Qwezzz
{
shared static this()
{
qaz = qazMap;
}
enum qazMap = ["rrr": "vv", "hty": "4ft6"];
static immutable string[string] qaz;
}
void main()
{
enum sorted = Qwezzz.qaz.keys.sort();
}
The variable "qaz" i
On Saturday, 18 January 2020 at 21:44:35 UTC, Boris Carvajal
wrote:
I read that thread. But:
Deprecation: initialization of immutable variable from static
this is deprecated.
Use shared static this instead.
And we get? No CTFE with static immutable AA?
Hello,
I'm trying to bind C library for Tcl/Tk in D code. There is a
function called "Tcl_CreateInterp()" which I declared as
extent(C). When I call this function then layout of memory become
broken - one of my global wstring variables loses it's value.
I don't know why it is happens. If I comm
Hi,
Why this works:
void setBases(string type)(ref int data, string base, string[]
syllables)
{
}
void setBases(string type, T)(ref int data, const ref T source)
{
}
void main()
{
int q = 6;
setBases!"tt"(q, "qwerty", ["tg", "jj"]);
setBases!"tt"(q, q);
}
and this doesn't work
On Wednesday, 13 May 2020 at 12:58:11 UTC, Adam D. Ruppe wrote:
On Wednesday, 13 May 2020 at 12:45:06 UTC, Andrey wrote:
Why this works:
It's just defined that way. Local functions follow local
variable rules - must be declared before use and names not
allowed to overload each other.
There
Hi,
I want to sum lengths of all strings in array:
auto data = ["qwerty", "az", ""];
Fold and reduce doesn't work:
auto result = data.fold!`a + b.length`(0U);
gives error:
static assert: "Incompatible function/seed/element:
binaryFun/uint/string"
How to do it in one line?
Thanks everyone.
Hello,
How to count a number of parameters in uninitialized template
method?
For example:
struct Test
{
void abc(int a, bool status, string text)() {}
{
The method "Test.abc" has three template paramenters.
I know that "TemplateArgsOf" exists but it is used only for
INITIALIZED templa
And what about:
void test() {}
and
void text(alias qqq)() {}
?
Hi,
I have got:
struct Qaz
{
wstring read() {return null;}
wstring hear() {return "";} }
void main()
{
// ...
static if(some_condition) alias method = Qaz.hear;
else alias method = Qaz.read;
// ...
Qaz qaz;
qaz.method(); // ???
}
How to call alias "method"
Thank you!
Hello,
Are here any differences in creation of dynamic array with known
size?
auto array = new wchar[](111);
and
wchar[] array;
array.length = 111;
Hello,
void test(const ref string[3] qazzz) { qazzz.writeln; }
void main()
{
enum string[3] value = ["qwer", "ggg", "v"];
test(value);
}
Gives errors:
onlineapp.d(26): Error: function onlineapp.test(ref
const(string[3]) qazzz) is not callable using argument types
(string[3])
online
Hm, you mean that enum variable is not a real variable?
I thought that to make CT variable you should mark it as enum (in
c++ as constexpr).
How to do it here?
Thank you!
Hello,
struct Value
{
int value;
string data;
string[] text;
}
void test(const ref Value value)
{
Value other = void;
other.text = value.text;
}
void main()
{
Value row;
row.value = 10;
row.data = "ggg";
test(row);
}
I want to pass variable "row" insi
Hello all,
Tell me please how can I "writeln" and "write" in function that
is used in CTFE?
At the moment I get this:
import\std\stdio.d(4952,5): Error: variable impl cannot be
modified at compile time
Or may be exist some other ways to do it?
On Wednesday, 13 January 2021 at 11:31:16 UTC, Bastiaan Veelo
wrote:
On Wednesday, 13 January 2021 at 09:11:53 UTC, Guillaume Piolat
wrote:
On Wednesday, 13 January 2021 at 08:35:09 UTC, Andrey wrote:
Hello all,
Tell me please how can I "writeln" and "write" in function
that is used in CTFE?
Hello,
Dmd gives an error:
Error: function `_setPastBases(ref const(Data) item, ref
const(Word!(wstring, wstring)) base)` is not callable using
argument types `(const(Data), Word!(wstring, wstring))
where Data and Word - structs.
What happens and how to pass arguments?
Ldc compiles without s
Mistake. It says about simple argument:
cannot pass rvalue argument `x` of type `Word!(wstring,
wstring)` to parameter `ref const(Word!(wstring, wstring)) base`
Function:
void _setPastBases(const ref Data item, const ref UsualWord
base)
Hello,
I wrote a small test code with WinApi:
import core.runtime;
import std.utf;
import core.sys.windows.windows;
import core.sys.windows.wingdi;
class Test
{
public this() nothrow
{
}
}
extern(Windows)
int WinMain(HINSTANCE h
On Thursday, 19 April 2018 at 08:24:55 UTC, user1234 wrote:
The run-time is not already initialized but the "new" operator
relies on it.
What will be a solution?
On Thursday, 19 April 2018 at 08:37:19 UTC, Andrey wrote:
What will be a solution?
It seems to me that I found a solution - just replace WinMain()
with main().
Hello,
I have some questions about virtual table in classes.
Example 1:
class Test
{
void someMethod() { ... }
int anotherMethod { ... }
}
Will this class have a vtable?
Example 2:
class Test2 : Test
{
void thirdMethod() { ... }
}
Will this class have a vtable?
In C++ these classe
Hello,
I need to declare a static compile-time assoc array inside struct:
struct Test
{
enum Type : ubyte
{
One,
Two,
Three
}
static immutable string[Type] DESCRIPTION = [Type.One:
"One!", Type.Two: "It's Two...", Type.T
On Monday, 13 August 2018 at 11:53:06 UTC, rikki cattermole wrote:
Unsupported. AA's don't go between CT and RT. You must use a
module constructor to initialize it.
Will be supported in future?
Hello,
This is my test project:
source/app.d
source/MyClass.d
app.d:
import std.stdio;
import MyClass;
void main(string[] args)
{
MyClass.MyClass.parse(args); // I want just
MyClass.parse(args);
}
---
On Monday, 13 August 2018 at 13:05:28 UTC, evilrat wrote:
however the best option is simply avoid naming anything with
same name as module.
Hmm, I thought that name of class should match name of file...
And how to name a file that contains only one class/struct? Like
in my case. What usually
On Monday, 13 August 2018 at 11:53:06 UTC, rikki cattermole wrote:
You must use a module constructor to initialize it.
Tried this:
static this()
{
Test.DESCRIPTION = [Test.Type.One: "One!", Test.Type.Two:
"It's Two...", Test.Type.Three: "And... Three!"];
}
struct Test
{
// ...
}
I h
On Monday, 13 August 2018 at 14:30:36 UTC, Timoses wrote:
On Monday, 13 August 2018 at 14:16:47 UTC, Mike Parker wrote:
On Monday, 13 August 2018 at 13:09:24 UTC, Andrey wrote:
[...]
The convention is to use lowercase for the module name:
module myclass;
struct MyClass {}
Using lowercase
Hello,
I have a enum:
enum Type : string
{
One = "Q1",
Two = "W2",
Three = "R3"
}
I want to concat it in compile-time:
enum result = doConcat!Type();
And get this result:
writeln(result); // output: "Q1 W2 R3"
Delimiter here is space symbol.
How do do it?
On Tuesday, 14 August 2018 at 13:45:48 UTC, Mike Franklin wrote:
I think you just need to use the concatenation operator `~`.
enum Type : string
{
One = "Q1",
Two = "W2",
Three = "R3"
}
enum concatenation = Type.One ~ " " ~ Type.Two ~ " " ~
Type.Three;
void main()
{
import st
On Tuesday, 14 August 2018 at 14:07:23 UTC, Timoses wrote:
Here's one version:
template StringEnumValues(alias Enum)
{
import std.traits : EnumMembers;
string[] StringEnumValues()
{
string[] enumValues;
static foreach (member; EnumMembers!Enum)
enumValues
On Tuesday, 14 August 2018 at 16:03:05 UTC, vit wrote:
import std.traits : EnumMembers;
import std.string : join;
import std.algorithm : map;
pragma(msg, [EnumMembers!Type].map!(x => cast(string)x).join("
"));
Thank you!
Jonathan M Davis, I understood.
Hello,
I have the following code:
string[] list;
string text;
// ...
enum pattern = ctRegex!`^[0-9]+$`;
list = text.split('\n').map!(line =>
line.matchFirst(pattern).hit);
Compiler says that it can't convert result of map function to
string[]...
What I want:
1. Split some text into lines us
Hello,
In D there is a nice function:
auto Tuple!(int,"status",string,"output") executeShell (
scope const(char)[] command,
const(string[string]) env = cast(const(string[string]))null,
Config config = cast(Config)0,
ulong maxOutput = 18446744073709551615LU,
scope const(char)[] workDir = null
Hello,
Here is a code that you can execute using online compiler
https://run.dlang.io/:
import std.stdio;
void main()
{
ushort first = 5;
ushort second = 1000;
ushort result = first + second;
writeln(result);
}
I hae this error:
onlineapp.d(7): Error: cannot implicitly convert
On Monday, 20 August 2018 at 08:42:20 UTC, rikki cattermole wrote:
It's called integer promotion and it originates from C.
And yes C++ does have such support in some variant (I really
don't feel like comparing the two).
And I should do? Always use "cast" operator when I operate not
with ints?
On Monday, 20 August 2018 at 08:49:00 UTC, rikki cattermole wrote:
Yes. On x86 int's will be faster just an FYI so it does make
sense to use them for computation.
Inconveniently always use casts. Why in D one decided to do in
such way?
Hello,
I have a function and a struct:
void foo(ref Data data) { ... }
struct Data
{
int a;
string text;
}
How to pass struct into function without naming its type?
This doesn't work:
foo({1234, "Hello!"});
On Monday, 20 August 2018 at 09:56:13 UTC, Jonathan M Davis wrote:
It's a combination of keeping the C semantics (in general, C
code is valid D code with the same semantics, or it won't
compile) and the fact that D requires casts for narrowing
conversions. When you add two shorts in C/C++, it c
On Monday, 20 August 2018 at 11:38:39 UTC, Paul Backus wrote:
Create an overload of foo that takes two arguments and combines
them into a `Data` struct internally:
void foo(int a, string text)
{
Data data = {a, text};
foo(data);
}
Hmm, not very good solution. In C++ you can not to wri
Hello,
I want to make an alias to function "std.stdio.writeln" and
"std.stdio.write" and use it like:
static void log(bool newline = true)(string text)
{
alias print(T...) = newline ? &writeln : &write;
_file.print();
text.print();
}
Unfortunately, it doesn't work... Also tried wit
On Monday, 20 August 2018 at 13:14:14 UTC, Andrey wrote:
Mistake... this is:
static void log(bool newline = true)(string text)
{
alias print(T...) = newline ? &writeln : &write;
_file.print(text);
text.print();
}
On Monday, 20 August 2018 at 13:35:07 UTC, ag0aep6g wrote:
On 08/20/2018 03:14 PM, Andrey wrote:
Thanks everybody for your answers.
On Monday, 20 August 2018 at 17:45:25 UTC, Seb wrote:
... yet. Though you can vote for this DIP and show your support
there:
https://github.com/dlang/DIPs/pull/71
It even comes with an implementation in DMD already:
https://github.com/dlang/dmd/pull/8460
How and where to vote?
Hello,
I have a function:
string format(string pattern, T...)(T value)
{
auto writer = appender!string();
writer.formattedWrite!pattern(convertToUnderlyingType(value));
//Tuple!T(value).expand.to!(OriginalType!T)
return writer.data;
}
The "value" in this function can be any type in
Hello,
This is a code:
import std.stdio;
struct Test
{
static Test opCall()
{
Test test;
test.handler = &test.one;
return test;
}
void one() const { writeln("In handler: Address = ", &this,
"; Text = ", text); }
void execute()
{
text = "Inited!"
On Tuesday, 21 August 2018 at 22:52:31 UTC, Alex wrote:
Maybe, like this:
Thank you but here you use heap to create ab object. I want only
on stack.
I know that one can do this:
test_handler.ptr = null;
and in place of call this:
handler.ptr = cast(void*)&this;
but it is ugly...
Hmm, any
Hello,
I know that D has build-in unit tests. If so, what mechanism D
provides for mocking objects?
For example:
struct WebParser
{
// ...
int download(string path)
{
SomeHttpClient client(path);
auto result = client.request(path, 10, "Qwerty");
// ...
re
Hello,
Is there a template/function/mixin... in the library that I can
use to map elements of a tuple?
object.foo(Mapper!myMapFunction(1, bool, "Qwerty",
EnumedColor.Red));
where "Mapper" is this mapper and "myMapFunction" is a template
function that I want to apply to each member in tuple.
Hello,
How to test if variable has void value?
string text = void;
if(text == void)
{
writeln("Is void");
}
Tried this:
if(is(text == void))
but doesn't work.
Hello,
This code produces an error:
auto matches = content.matchAll(pattern);
auto max = matches.maxElement!"a => a.back.to!uint"();
I have a RegexMatch array like:
[["text1234", "1234"], ["zxs432fff", "432"], ["text000_",
"000"]]
Max element here is 1234.
I apply map function "a => a.ba
Hello,
This code doesn't compile:
---
import std.meta;
import std.stdio;
enum Option : string
{
First = "-first" ,
Second = "-second",
Qwerty = "-qwerty"
}
void handler(Option option)(string[] args, ref ushort index
Hello again,
I have this part of code:
...
if(index + 3 >= data.length || data[index + 1][0] == '&' ||
data[index + 2][0] == '&' || data[index + 3][0] == '&' ||
data[index + 4][0] == '&')
{
writeln("Some text...");
}
I don't want to write manually these four "or" conditions because
in ea
On Monday, 27 August 2018 at 11:56:08 UTC, Kamil Koczurek wrote:
Mixins seem to be an overkill here. Maybe something like this
would suffice:
data[index + 1 .. index + 5].map!(k => k[0]).array == ""
Here there is dynamic code, with memory allocs.
I found solution:
---
Hello,
Let we have two variadic templates:
template Qwerty(Values...) {}
template Qaz(alias type, Data...) {}
Now I want to add a constraint to "Qwerty" so that each type in
"Values" pack must be a "Qaz" template. I don't care about values
of "type" or "Data" in "Qaz".
How to do it in D?
On Tuesday, 28 August 2018 at 13:05:15 UTC, bauss wrote:
I'm not sure if there is a better way, but isInstanceOf
(std.traits) seems to work with a static foreach and a static
if.
template Qwerty(Values...)
{
static foreach (value; Values)
{
static if (!isInstanceOf!(Qaz, value)
Hello,
is it possible to declare an internal variable in "static
foreach" and on each iteration assign something to it?
Example:
static foreach(arg; SomeAliasSeq)
{
internal = arg[0].converted;// a shortcut for expression
"arg[0].converted"
static if(internal.length == 0) { ... }
Hello,
This code doesn't print enum values:
import std.meta;
import std.traits;
import std.stdio;
enum MyEnum : string
{
First = "F_i_r_s_t",
Second = "S_e_c_o_n_d"
}
alias QW(alias arg) =
Alias!(cast(OriginalType!(typeof(arg)))arg);
void print(T...)(T args)
{
writeln(cast(OriginalT
On Thursday, 30 August 2018 at 09:49:15 UTC, drug wrote:
30.08.2018 11:19, Andrey пишет:
Thanks everybody. Works!
On Thursday, 30 August 2018 at 11:09:40 UTC, vit wrote:
args are runtime arguments.
import std.experimental.all;
enum MyEnum : string
{
First = "F_i_r_s_t",
Second = "S_e_c_o_n_d"
}
///alias QW(alias arg) =
Alias!(cast(OriginalType!(typeof(arg)))arg);
auto QW(T)(const auto ref T x){
On Thursday, 30 August 2018 at 12:04:26 UTC, vit wrote:
On Thursday, 30 August 2018 at 11:34:36 UTC, Andrey wrote:
On Thursday, 30 August 2018 at 11:09:40 UTC, vit wrote:
[...]
I want to create a reusable template for this purpose.
Why I can't use "staticMap" so that compiler it self would do
On Friday, 31 August 2018 at 12:21:48 UTC, aliak wrote:
auto ToUnderlyingType(alias a)() {
return cast(OriginalType!(typeof(a)))a;
}
void print(T...)(T args) {
writeln(staticMap!(ToUnderlyingType, args));
}
Oohhh. So easy! Killed 2 days - and templates and mixins tried...
And the sol
Hello,
Here is a code with comments: https://run.dlang.io/is/BNl2Up.
I don't understand how to pass lambda into template.
I get an error:
onlineapp.d(18): Error: template instance `qwerty!((i) => "arg"
~ i.to!string ~ "[0] == '?'", "||")` cannot use local __lambda1
as parameter to non-global t
Hello,
I try to build my project using command "dub build" but I can\t
because there is an error:
Fetching derelict-util 3.0.0-beta.2 (getting selected
version)...
SSL connect error on handle 1F19AC0
And this happens every time... As I understand dub can't find
package.
In dub.json I have th
On Monday, 26 November 2018 at 12:11:03 UTC, Alex wrote:
On Monday, 26 November 2018 at 11:57:40 UTC, Andrey wrote:
Hello,
I try to build my project using command "dub build" but I
can\t because there is an error:
Fetching derelict-util 3.0.0-beta.2 (getting selected
version)...
SSL connect e
Hi,
How to pass -J switch to compiler via DUB?
I want to import some text file at compile time:
string data = import("vertex.glsl");
In dub.json:
"dflags": [
"-J=vertex.glsl"
]
The file itself is located on the same level as "dub.json".
On Friday, 30 November 2018 at 11:21:04 UTC, fghost wrote:
On Friday, 30 November 2018 at 11:05:26 UTC, Andrey wrote:
Hi,
How to pass -J switch to compiler via DUB?
I want to import some text file at compile time:
string data = import("vertex.glsl");
In dub.json:
"dflags": [
"-J=vertex.gl
Hi,
I want to create a static array and immediately init it with
values:
uint[x] data = [1,3,10,44,0,5000];
I don't want to set the length of it explicitly (x in square
brackets). I want that compiler itself counted number of values
(in example it is 6).
What should be a right synt
Hi,
Have array:
enum array = ["qwerty", "a", "baz"];
Need to reverse and sort array elements to get this result:
[a, ytrewq, zab]
Did this:
enum result = array.map!(value => value.retro()).sort();
Got:
Error: template std.algorithm.sorting.sort cannot deduce
function from argument types !()
On Tuesday, 18 December 2018 at 12:32:35 UTC, angel wrote:
On Tuesday, 18 December 2018 at 12:07:37 UTC, Andrey wrote:
Thank you everybody.
Here was another problem that local variable 'array' shadows
function 'array()' from std.array.
Hi,
I have got this code:
import std.array : array;
import std.algorithm.mutation;
import std.algorithm.iteration;
import std.stdio;
void main()
{
string input = "sieviaghp";
enum data = ["emo", "emoze", "emow", "emuo", "evuo", "ete",
"ie", "vuo", "sie", "w"];
enum index = 3;
Hi,
Here is a template mixin:
mixin template create(alias input, uint index, alias data)
{
if(input.length < index) return;
// ... some code
}
When I try to compile it, I get:
Error: declaration expected, not if
Is it possible to mixin operator 'if' directly inside my template
mixi
Hi,
I want to filter AA at compile time and do this:
void main()
{
// datamap is some AA
enum qaz = "qq";
enum types = datamap.byKeyValue.filter!(pair =>
qaz.isGood(pair)).assocArray();
types.writeln;
}
But compiler says:
Error: _aaRange cannot be interpreted at compile time,
Hi,
In C++ you can create a fixed array on stack:
int count = getCount();
int myarray[count];
In D the "count" is part of type and must be known at CT but in
example it is RT.
How to do such thing in D? Without using of heap.
On Friday, 11 January 2019 at 15:23:08 UTC, Dgame wrote:
On Friday, 11 January 2019 at 14:46:36 UTC, Andrey wrote:
Hi,
In C++ you can create a fixed array on stack:
int count = getCount();
int myarray[count];
In D the "count" is part of type and must be known at CT but
in example it is RT.
Hello,
How to break from parallel foreach?
More general question - how to control such loop?
Hello,
I have got 2 simple arrays with the same length:
int[] values = [1, 2, 3, 4, 5];
char[] keys = ['a', 'b', 'c', 'd', 'e'];
auto result = buildAA(keys, values); // [a: 1, b: 2, c: 3, d:
4, e: 5]
I want to build AA "result" using "values" and "keys". How to do
it?
Hello,
I have got some text with UTF-8. For example this part:
ΠαÏάλληλη αναζήÏηÏη
How to decode it to get this result?
Παράλληλη αναζήτηση
I have tried functions like "decode", "byUTF", "to!wchar"... but
no success.
Input string is correct - checked it with
"https://ww
On Wednesday, 27 March 2019 at 19:16:21 UTC, kdevel wrote:
On Wednesday, 27 March 2019 at 13:39:07 UTC, Andrey wrote:
Thank you!
Hello,
Simple code:
import std.stdio;
mixin template DeclFlag(alias values)
{
static foreach(value; values)
{
mixin("bool has" ~ value ~ " = false;");
}
}
enum Key : string
{
First = "qwerty",
Last = "zaqy"
}
void main()
{
enum data = [Key.First, Key.Last];
Hello,
enum Key : string
{
First = "qwerty",
Last = "zaqy"
}
void main()
{
enum decl(alias values1) = q{
static foreach(value; values1)
mixin("bool " ~ value ~ " = false;");
};
enum qqq = [Key.First, Key.Last];
mixin(decl!qqq);
}
I don't
Hello,
My code:
import std.string : join;
enum Key : string
{
First = "qwerty",
Last = "zaqy"
}
struct Qaz
{
enum text(alias Values) = Values.map!(value => "bool has" ~
value ~ " = false;").join();
}
//enum text(alias Values) = Values.map!(value => "bool has" ~
value ~ " = false
Hello,
In this example how can I access the members "read" and "q" of
struct Outer from Inner struct?
struct Outer
{
ulong q = 1;
Inner inner;
void read(ulong value)
{
q += value;
}
void run()
{
q.writeln;
read(5);
}
struct Inner
Hi,
I want to do something like this:
void main()
{
enum letters = ['A', 'B', 'C'];
static foreach(ch; letter)
{
void mixin("print" ~ ch)(uint i)
{
writeln(ch, " - ", i);
}
}
printB(6);
}
Create some function in loop and use it. But
On Sunday, 14 April 2019 at 11:44:16 UTC, Boris Carvajal wrote:
On Sunday, 14 April 2019 at 10:07:30 UTC, Andrey wrote:
Create some function in loop and use it. But I don't know how
to mixin names?
import std.stdio;
void main()
{
enum letters = ['A', 'B', 'C'];
static foreach(ch; le
Hello,
I have got 2 enums. How to inherit one enum from another?
enum Key : string
{
K1 = "qwerty",
K2 = "asdfgh"
}
enum ExtendedKey : Key
{
E1 = "q1",
E2 = "w2",
E3 = "e3"
}
Result:
onlineapp.d(27): Error: cannot implicitly convert expression
"q1" of type string to Key
on
Hello,
I want to make partial alias of template function "format":
void qaz(alias tmp, Values...)()
{
alias message = format!tmp;
// ...
enum v = message(Values);
}
void main()
{
qaz!("test %s!", "Qwerty");
}
But I get this:
Error: static assert: "Orphan
Hi all,
Do you know can we detect that some argument of a function can be
handled in CT?
For example:
int value1 = 10;
someFunction(value1);
int value2 = getValueFromUserInput();
someFunction(value2);
void someFunction(int arg)
{
static if(argCanBeHandledInCT(arg))
{
// perform
On Wednesday, 24 April 2019 at 08:28:06 UTC, Basile.B wrote:
On Wednesday, 24 April 2019 at 07:53:47 UTC, Andrey wrote:
I know about this template. Unfortunally, it doesn't work inside
functions.
void test(string arg1, string arg2)
{
enum isKnown1 = is(typeof((){enum v = arg1;}));
enu
enum Qaz : wstring
{
One = "один"
}
template Qwerty(Values...)
{
enum text = "Values[%d]";
enum args = iota(Values.length).map!(value =>
format!text(value)).join(',');
pragma(msg, args);
alias Qwerty = Alias!(mixin("AliasSeq!(" ~ args ~ ");"));
}
void main()
{
Qwerty!
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