On https://code.dlang.org/packages/dpq2 I clicked at
https://dpq2.dpldocs.info/v1.0.23/ and got:
```
Downloading package info...
Downloading source code for version v1.0.23 from
https://github.com/denizzzka/dpq2/archive/v1.0.23.zip...
Unzipping D files...
Generating documentation... this may t
```dptr.d
class R {
}
void foo (R r)
{
}
alias fn = void function (R);
void lyr (fn F) (R r)
{
}
immutable fn foo_ptr = &foo; // line 14
pragma (msg, typeof (foo_ptr));
auto ptr = lyr!(foo_ptr);// line 17
```
dmd reports:
```
immutable(void function(R))
dptr.d(14): Error: expression `& f
On Friday, 31 December 2021 at 03:02:08 UTC, Tejas wrote:
[...]
Is it okay to use template parameter instead of **template
value** parameter?
```d
class R {
}
void foo (R r)
{
}
void lyr (fp_type, R) (fp_type fp, R r)
{
}
pragma (msg, typeof (&foo));
R r;
void main(){
auto foo_ptr = &foo;
On Friday, 31 December 2021 at 09:01:10 UTC, data pulverizer
wrote:
On Friday, 31 December 2021 at 00:57:26 UTC, kdevel wrote:
Pointers are runtime entities and are not suitable template
parameters (compile time).
The address of a function does not change at runtime. The
question is: Can func
On Friday, 31 December 2021 at 12:36:46 UTC, H. S. Teoh wrote:
```
void lyr(alias Fn)(ref R r)
{
Fn(r);
}
```
Thanks! That helped me reinvent the engine.
In a project I have this "controller" function:
```
void create_fso (O) (Request req)
{
:
auto npathname = (extract name from req)
:
O.create (npathname);
:
}
public import fsobjects;
```
which creates a file system object. The possible object types I
collected in a separate mod
On Thursday, 6 January 2022 at 02:37:41 UTC, frame wrote:
On Tuesday, 4 January 2022 at 22:17:38 UTC, kdevel wrote:
Is there any chance to rephrase fsobjects.d such that it
becomes a "header only"/"compile only" file of which no object
file must be presented to the linker?
You didn't show ho
On Thursday, 6 January 2022 at 02:47:17 UTC, Steven Schveighoffer
wrote:
Possibly. You see, you are importing another module. Since you
are doing that, the module must participate in cycle detection
at the beginning of running the program.
IC. Had cyclic module dependencies twice within this p
On Sunday, 31 October 2021 at 17:02:00 UTC, Ali Çehreli wrote:
Just comment that line out. :) D's pseudo-random generators
start randomized by default:
[...]
https://dlang.org/phobos/std_random.html
Klicking at "Run" always delivers "mango":
https://dlang.org/phobos/std_random.html#unifo
On Friday, 7 January 2022 at 09:18:29 UTC, frame wrote:
On Thursday, 6 January 2022 at 22:54:59 UTC, kdevel wrote:
In my setup make decides which file to (re)compile. Just found
that dmd has the option -makedeps which resembles gcc's -M but
theres no -MM to excluded dependencies from system fi
On Saturday, 8 January 2022 at 23:34:17 UTC, Ali Çehreli wrote:
[...]
Apparently, the programmer wanted uniformly distributed
randomness that is reproducible. That's why they use a
generator that is seeded with 42 there.
It does produce random results but the first Fruit happens to
be "mango"
On Sunday, 9 January 2022 at 03:15:02 UTC, Ali Çehreli wrote:
What would work in the code above is 'choice':
char q = choice(allowed_chars);
But that hits another fact of D: arrays of chars are strings,
which cannot be RandomAccessRange because individual chars must
be decoded to form dchar
On Thursday, 10 February 2022 at 17:09:23 UTC, Ali Çehreli wrote:
import std.traits : isAssociativeArray,
isImplicitlyConvertible, KeyType, ValueType;
void update(Target, From)(ref Target target, From from)
if (isAssociativeArray!Target &&
isAssociativeArray!From &&
isImplicitlyConverti
On Sunday, 13 February 2022 at 01:27:45 UTC, Ali Çehreli wrote:
[...]
> If I remove the constraint (the if-stuff) I get
>
> v1.d(12): Error: cannot implicitly convert expression
`kv.value()`
> of type `byte` to `string`
> v1.d(23): Error: template instance
`v1.update!(string[int],
> byte[
Instead of using string I want to use A in the definition of B:
struct A {
string s;
this (string s)
{
this.s = s;
}
}
struct B {
A a;
A b;
}
Alas I have some difficulty initializing a B in the accustomed
manner (b3):
void main ()
On Monday, 14 February 2022 at 01:04:08 UTC, Ali Çehreli wrote:
[...]
Point taken but how deep should we understand library code, not
all being Phobos. My pet peeve:
import std.stdio;
void main(string[] args) {
writefln!"hello"(42);
}
/usr/include/dlang/dmd/std/stdio.d(4442): Error: no pr
On Friday, 18 February 2022 at 14:37:25 UTC, Ali Çehreli wrote:
On 2/18/22 06:19, kdevel wrote:
> // auto b3 = B ("A", "B"); // Error: cannot implicitly
convert
> // expression `"A"` of type `string` to `A`
Yeah, D disallows some implicit conversions.
Adding a constructor to B will m
```
$ dmd --version
DMD64 D Compiler v2.098.1
[...]
```
```main.d
module main; // main.d
import std.traits;
import model;
void main ()
{
enum Q = Parameters!read;
}
```
```model.d
module model; // model.d
import std.file : read; // this line provokes the error
int read (string filename)
{
```main.d
module main; // main.d
import std.traits;
import model;
void main ()
{
enum Q = Parameters!read;
}
```
Will not compile with selective import commented out. Hence
main.d must read (alias instead of enum):
```main.d
module main; // main.d
import std.traits;
import model;
void ma
On Friday, 25 February 2022 at 23:17:14 UTC, Paul Backus wrote:
[...]
Currently, selective imports are implemented using `alias`es
under the hood, which means that the compiler sees your `model`
module as having *two* overloads of `read`:
```d
alias read = std.file.read; // from selective impo
zstack.d:
```
module zstack;
import std.stdio: writeln;
void bar (int [] i)
{
writeln ("i: ", i);
}
unittest {
int [] arr;
bar (arr);
}
```
zrepo.d:
```
module parser;
import std.regex;
import zstack;
```
```
$ dmd -g -i -unittest -checkaction=context -main -run zrepro
2>&1 | ddem
Don't know if this is OT here.
On Sunday, 27 March 2022 at 18:09:30 UTC, Adam D Ruppe wrote:
If the C library thinks it is talking to a pipe, it will switch
to block buffering instead of line buffering. It must just
think msys is a pipe (since it probably is under the hood).
while compiling a
On Thursday, 17 May 2018 at 12:34:25 UTC, Andre Pany wrote:
this applications throws an error in std.numeric (Line 2826).
=> assert(isPowerOf2(range.length));
Isn't it possible to give an arbitrary length
of data to fft like in numpy?
There is a mathematical background which is well explaine
On Sunday, 20 May 2018 at 16:08:03 UTC, ipkwena wrote:
How does one access the columns fields in a Mysql query results
by the column name.
[...]
Data f;
f.name = to!string(allrows[0][0]);
f.surname = to!string(allrows[0][1]);
f.title = to!string(allrows[0][2]);
I am using the mysql-native p
On Monday, 21 May 2018 at 14:17:23 UTC, Steven Schveighoffer
wrote:
Data f;
allrows[0].toStruct (f);
I haven't checked this.
This only works if your struct has exactly the same layout as
the fields.
So if, for instance, your rows are selected "title", "name",
"surname", but your da
Just stumbled over the following design:
class S {...}
class R {
:
Nullable!S s;
:
}
s was checked in code like
R r;
:
if (r.s is null)
throw new Exception ("some error message");
At runtime the following was caught:
fatal error: caught Throwable
On Monday, 25 June 2018 at 22:58:41 UTC, Jonathan M Davis wrote:
On Monday, June 25, 2018 19:40:30 kdevel via
Digitalmars-d-learn wrote:
R r;
if (r.s is null)
throw new Exception ("some error message");
[...]
Why can't this programming error be detected at com
On Tuesday, 26 June 2018 at 14:32:59 UTC, Nathan S. wrote:
On Monday, 25 June 2018 at 19:40:30 UTC, kdevel wrote:
Is it possible
to "lower" the Nullable operations if T is a class type such
that there
is only one level of nullification?
Yes: https://run.dlang.io/is/hPxbyf
template Null
On Tuesday, 26 June 2018 at 21:54:49 UTC, Jonathan M Davis wrote:
[H]onestly, I don't understand why folks keep trying to put
nullable types in Nullable in non-generic code.
How do you signify that a struct member of class type is optional?
On Thursday, 28 June 2018 at 19:22:38 UTC, Jonathan M Davis wrote:
Nullable makes sense in generic code, because the code isn't
written specifically for them, but something like
Nullable!MyClass in non-generic code is pointless IMHO, because
a class reference is already nullable.
It is alread
In https://dlang.org/phobos/std_exception.html#errnoEnforce this
example is shown:
---
auto f = errnoEnforce(fopen("data.txt"));
auto line = readln(f);
enforce(line.length); // expect a non-empty line
---
I added
import std.stdio;
import std.exception;
and get an error message which rem
On Friday, 29 June 2018 at 02:28:04 UTC, Jonathan M Davis wrote:
[...] really, that example needs to be completely redone.
Shall I create a bug report?
On Friday, 29 June 2018 at 09:22:03 UTC, Jonathan M Davis wrote:
Shall I create a bug report?
Yes. Aside from someone trying it out and complaining about it,
it probably wouldn't be noticed or fixed, since it's one of the
few tests that doesn't work as a ddoc-ed unit test.
Issue 19041 - err
It appears not to be possible to use static if in "guard clause
style" as in
void bar (T ...) (T args)
{
static if (args.length == 0)
return;
writeln (args [0]);
return bar (args [1 .. $]);
}
Is this intended?
On Saturday, 7 July 2018 at 11:29:35 UTC, rikki cattermole wrote:
static if (args.length == 0)
return;
else {
writeln (args [0]);
return bar (args [1 .. $]);
}
That's not guard clause style [1][2].
[1]
https://refactoring.com/catalog/replaceNestedConditio
On Saturday, 7 July 2018 at 11:56:40 UTC, rikki cattermole wrote:
On 07/07/2018 11:44 PM, kdevel wrote:
On Saturday, 7 July 2018 at 11:29:35 UTC, rikki cattermole
wrote:
static if (args.length == 0)
return;
else {
writeln (args [0]);
return bar (args [1 .. $]
On Saturday, 7 July 2018 at 12:46:08 UTC, rikki cattermole wrote:
On 08/07/2018 12:40 AM, kdevel wrote:
Interesting alternative
That was not an alternative.
That is what your code was doing.
What my original code was supposed to do. But it did not compile.
Error: array index [0] is outsi
On Tuesday, 10 July 2018 at 00:11:27 UTC, Steven Schveighoffer
wrote:
On 7/7/18 7:28 AM, kdevel wrote:
It appears not to be possible to use static if in "guard
clause style" as in
void bar (T ...) (T args)
{
static if (args.length == 0)
return;
writeln (args [0
On Saturday, 7 July 2018 at 13:03:32 UTC, rikki cattermole wrote:
void func() {
return;
func2();
}
Which is clearly an error. Hence why you need to add else block.
There is no error in this generated code because func2 is
unreachable. That there is a state/stage during compil
On Saturday, 7 July 2018 at 13:12:59 UTC, Alex wrote:
The site you cited for the guard clause above (c2.com)
works at runtime.
?
The intention is to shorten the paths inside a function, I
think. Therefore, a static "guard clause" is a contradiction,
if I understand it correctly.
The term "
On Saturday, 7 July 2018 at 11:56:40 UTC, rikki cattermole wrote:
void bar (T ...) (T args) if (T.length == 0)
{
return;
[...]
}
void bar (T ...) (T args) if (T.length > 0)
{
writeln (args [0]);
return bar (args [1 .. $]);
}
This is a version without a se
On Tuesday, 10 July 2018 at 20:10:54 UTC, Adam D. Ruppe wrote:
On Tuesday, 10 July 2018 at 19:01:22 UTC, Per Nordlöw wrote:
[...]
Run the program in a debugger, or run `ulimit -c unlimited` to
enable core dumps [...]
Works for null ptr deref but how do I enforce core dumps in this
code:
du
On Tuesday, 10 July 2018 at 21:09:23 UTC, Steven Schveighoffer
wrote:
[...]
As far as the OS is concerned, a[2 .. $] is within the process
memory limit.
Of course, that's an out of bounds access, so the compiler or
the bounds check *should* complain.
It complains at runtime
> ./dumpme2
On Tuesday, 10 July 2018 at 22:31:54 UTC, Adam D. Ruppe wrote:
Turn off rtTrapExceptions
though the command line switch PR is STILL NOT MERGED
https://github.com/dlang/druntime/pull/2035
extern (C) __gshared bool rt_trapExceptions;
static this ()
{
rt_trapExceptions = false
What does
auto std.stdio.File.ByChunkImpl byChunk (
ulong chunkSize
);
on https://dlang.org/library/std/stdio/file.by_chunk.html mean?
Is that
a (forward) declaration of a function named byChunk taking a
single
ulong argument name chunkSize. But what does that function return?
On Friday, 3 August 2018 at 17:06:16 UTC, Adam D. Ruppe wrote:
On Friday, 3 August 2018 at 16:58:26 UTC, kdevel wrote:
What does
auto std.stdio.File.ByChunkImpl byChunk (
ulong chunkSize
);
on https://dlang.org/library/std/stdio/file.by_chunk.html mean?
It looks like ddox trying to
On Friday, 3 August 2018 at 17:27:07 UTC, Adam D. Ruppe wrote:
But remember, this is documentation that just happens to look
like code, so it is intended to be legible by people rather
than the compiler.
I could not find any elucidation of the meaning of
auto
when used as a return type o
https://dlang.org/spec/interface.html #11 has this code example:
```
interface D
{
int foo();
}
class A : D
{
int foo() { return 1; }
}
class B : A, D
{
override int foo() { return 2; }
}
...
B b = new B();
b.foo();// returns 2
D d = cast(D) b;
d.foo();// r
On Friday, 4 January 2019 at 11:27:59 UTC, Alex wrote:
On Friday, 4 January 2019 at 09:58:59 UTC, bauss wrote:
[...]
As for the OP, I think here the usefulness of ", D" should be
visible:
[...]
class B : A, D
{
override int foo() { return 2; }
}
[...]
D d = cast(D) b;
asse
On Friday, 4 January 2019 at 20:21:56 UTC, Steven Schveighoffer
wrote:
missing in the source. But why is d a null reference in the
first place?
Because when you dynamically cast one object or interface to
another object or interface, and that result is not possible
(if you remove ",D" from th
For years I missed the man pages of the C++ standard library and
now found out that some Linux distros provide them as extra
package. The man pages are not generated by a default during a
GCC bootstrap install but need an explicit make doc-install-man
in the corresponding doc directory of libst
I applied the head
commit ce249d880969111384d17f744687e427c843f1d4
Merge: 8a6b7a4 0e517e4
Author: Eugene Wissner
Date: Tue Apr 10 15:37:32 2018 +0200
Merge pull request #647 from belka-ew/gdc-49up
Merge branch gdc-5 into gdc-4.9
of branch gdc-4.9 on top of gcc-4.9.
On Thursday, 17 January 2019 at 01:43:42 UTC, SrMordred wrote:
On Tuesday, 15 January 2019 at 11:14:54 UTC, John Burton wrote:
[...]
auto window = Window();
window.title = "My Window";
window.width = 1000;
window.create();
[...]
Is there a better way that's not ugly?
[...]
//usage:
au
Online but not on a local installation I frequently land on pages
under https://dlang.org/library/ (API Documentation). What is the
reason for this duplicate docs? The API documentation looks much
cleaner and better structured.
https://dlang.org/library/std/range.html
vs.
https://dlang.org/pho
On Monday, 4 February 2019 at 10:17:53 UTC, bauss wrote:
On Saturday, 2 February 2019 at 16:56:45 UTC, Ron Tarrant wrote:
[...]
Here's the singleton code I've been playing with:
[...]
static bool instantiated_;
// Thread global
__gshared DSingleton instance_;
[...
I am trying to get this code compiled:
```TemplateStore.d
module TemplateStore;
import std.path;
import std.conv;
import std.file;
immutable string[string] template_map;
static this ()
{
static foreach (f; dirEntries (``, `*.html`,
SpanMode.shallow)) {
pragma (msg, `reading template
On Monday, 11 February 2019 at 00:54:27 UTC, Seb wrote:
On Monday, 11 February 2019 at 00:19:02 UTC, kdevel wrote:
[...]
You can't read or list files at compile-time.
dmd can read files at compile time using the import function [1]
What are you trying to do?
Incorporate HTML template fi
On Friday, 15 February 2019 at 18:11:11 UTC, Dennis wrote:
Your should report our observation: https://issues.dlang.org
```
void main ()
{
enum A = [0x10203040, 0x50607080]; // shall enum behave like
immutable?
auto B = [0x10203040, 0x50607080];
assert (A == B);
auto p = cast (ubyt
This program:
```ls.d
import std.stdio;
import std.file;
void main (string [] args)
{
auto entries = dirEntries (args[1], SpanMode.shallow, false);
foreach (e; entries)
writeln (e.name);
}
```
lists the contents of a directory even if args[1] and the
filesystem contain names encoded
On Wednesday, 27 March 2019 at 13:39:07 UTC, Andrey wrote:
I have got some text with UTF-8. For example this part:
ΠαÏάλληλη αναζήÏηÏη
This looks like a UTF-8 sequence which has been UTF-8 encoded.
How to decode it to get this result?
Παράλληλη αναζήτηση
Undo the second
In § 28.3 Pointers and the Garbage Collector [1] we read
Do not add or subtract an offset to a pointer such that the
result points
outside of the bounds of the garbage collected object
originally allocated.
char* p = new char[10];
char* q = p + 6; // ok
q = p + 11;
On Sunday, 7 April 2019 at 10:17:53 UTC, AltFunction1 wrote:
On Sunday, 7 April 2019 at 10:05:26 UTC, kdevel wrote:
In § 28.3 Pointers and the Garbage Collector [1] we read
Do not add or subtract an offset to a pointer such that the
result points
outside of the bounds of the garbage coll
On Sunday, 7 April 2019 at 17:16:12 UTC, Seb wrote:
---
["a": 1].byPair.array.sort!((a, b) => a.value <
a.value).release.each!writeln;
---
What's the purpose of .release? The documentation in
https://dlang.org/phobos/std_range.html#.SortedRange.release is
rather monosyllabic.
Recently (before refactoring) my application complained right
after invocation:
object.Error@src/rt/minfo.d(371): Cyclic dependency between
module Filebrowser and App
Filebrowser* ->
App* ->
Filebrowser*
Is it possible to detect this dependency before the program is
started?
Per
On Sunday, 28 April 2019 at 14:24:08 UTC, Robert M. Münch wrote:
On 2019-04-28 11:44:03 +, Mike Parker said:
They're different symbols because they're in different
modules. The module and package name is part of the symbol
name.
Ok, that's what I assumed too.
Just import A.b in A.a.
In the current working directory b/ I have
package.d
```
module b;
import c;
void bar (string s)
{
mkdir (s);
}
```
c/package.d
```
module c;
package import std.file;
```
$ dmd -unittest -main package.d c/package.d
produces the binary "package" as expected, but
$ dmd -unittest -main
On Wednesday, 1 May 2019 at 22:35:12 UTC, ag0aep6g wrote:
On 02.05.19 00:25, kdevel wrote:
dmd -unittest -main -run package.d c/package.d
That doesn't compile c/package.d. Everything after `-run
package.d` is interpreted as an argument to the compiled
program.
Thanks for the information. W
On Wednesday, 1 May 2019 at 22:35:12 UTC, ag0aep6g wrote:
[...]
Or use -i so that DMD compiles the imported module
automatically:
dmd -unittest -main -i -run package.d
Now I have:
a/main.d
a/b/package.d
a/b/c/package.d
b/package.d and c/package.d as before. a/main.d is
```
import b;
v
On Wednesday, 8 May 2019 at 09:15:41 UTC, Ron Tarrant wrote:
On Wednesday, 8 May 2019 at 06:30:56 UTC, Robert M. Münch wrote:
Our focus is executable size (I'm an old school guy) and speed.
What about correctness?
[...]
For some simple real-time grid example see:
https://www.dropbox.com/s/
On Thursday, 16 May 2019 at 20:31:23 UTC, Vladimir Panteleev
wrote:
On Thursday, 16 May 2019 at 20:17:37 UTC, Steven Schveighoffer
[...]
hnsecs is more confusing than nanoseconds. People know what a
nanosecond is, a hecto-nano-second is not as familiar a term.
Agreed, which is why Duration.
On Monday, 13 May 2019 at 09:25:05 UTC, ztop wrote:
[...]
The old site is archived in wayback
https://web.archive.org/web/20180103191733/http://antigrain.com/
Thanks. That is the page I have been looking for:
https://web.archive.org/web/20180306023416/http://www.antigrain.com/research/font_ra
On Friday, 17 May 2019 at 20:30:56 UTC, Bastiaan Veelo wrote:
On Friday, 17 May 2019 at 18:36:00 UTC, ag0aep6g wrote:
I'd suggest "17 ms, and 553.1µs" for a better default (1 hns
is 0.1 µs, right?). No weird "hnsecs", no false precision,
still all the data that is there.
I was going to propos
Today I stumbled over this error:
elsestaticif.d
```
import std.stdio;
void insert () ()
{
// some code
}
void insert (T, Args ...) (T x, Args args)
{
static if (T.stringof == "int") {{
`int`.writeln;
}}
else if (T.stringof == "bool") {{ // ← "static" is missing here
`bo
On Monday, 20 May 2019 at 11:47:25 UTC, Josh wrote:
On Monday, 20 May 2019 at 11:10:32 UTC, Boqsc wrote:
https://dlang.org/spec/float.html
I'm frozen in learning basics of D lang since I want to create
a simple game and I really would like a clean and simple code,
however to me floating point
On Sunday, 19 May 2019 at 13:07:36 UTC, Robert M. Münch wrote:
On 2019-05-12 17:33:16 +, kdevel said:
[...]
What about correctness?
Correctness of what?
Open a new document in MS Word or any other word processor and
then press and hold the "L" key until the cursor hits the right
margi
On Thursday, 23 May 2019 at 09:44:15 UTC, Cym13 wrote:
[...]
Note in particular the blocksize argument. I set it to 1M but
by default it's 512 bytes. If you use strace with the command
above you'll see a series of write() calls, each writting 1M of
null bytes to testfile. That's the main diff
Yesterday I noticed that std.uri.decodeComponent does not
'preserve' the
nullity of its argument:
1 void main ()
2 {
3import std.uri;
4string s = null;
5assert (s is null);
6assert (s.decodeComponent);
7 }
The assertion in line 6 fails. This failure gave ris
Just saw that my first example was wrong, it should read
1 void main ()
2 {
3import std.uri;
4string a = "";
5assert (a);
6auto s = a.decodeComponent;
7assert (s);
8 }
The non-nullity was not preserved. Only the second assert fa
What's going on here?
On Saturday, 8 July 2017 at 23:12:15 UTC, Jonathan M Davis wrote:
On Saturday, July 8, 2017 5:16:51 PM MDT kdevel via
Digitalmars-d-learn wrote:
[...]
IMHO, if you want to check for empty, then you should use the
empty property or check length directly, since those are clear
about your
On Sunday, 9 July 2017 at 10:32:23 UTC, ag0aep6g wrote:
On 07/09/2017 01:12 AM, kdevel wrote:
On Saturday, 8 July 2017 at 18:39:47 UTC, ag0aep6g wrote:
On 07/08/2017 07:16 PM, kdevel wrote:
[...]
Moreover everything I've written about strings is also valid
for e.g. dynamic arrays of doubles
On Sunday, 9 July 2017 at 13:51:44 UTC, kdevel wrote:
But that second proposition what not the one chosen in the
documentation.
Shall read: "But that second predicate was not the one chosen in
the documentation."
On Sunday, 9 July 2017 at 15:10:56 UTC, ag0aep6g wrote:
On 07/09/2017 03:51 PM, kdevel wrote:
On Sunday, 9 July 2017 at 10:32:23 UTC, ag0aep6g wrote:
[...]
A null char* is not a proper C string.
A C string is a sequence of storage units containing legitimate
character values of which the
On Wednesday, 2 August 2017 at 11:44:30 UTC, Martin Drašar wrote:
Thank you for any hint.
1 import std.stdio;
2 import std.string;
3 import std.algorithm;
4 import std.conv;
5
6 void main ()
7 {
8auto input = File("input.csv");
9
1
On Wednesday, 2 August 2017 at 13:45:01 UTC, Steven Schveighoffer
wrote:
As Daniel said, using byCodeUnit will help.
stripLeft seems to autodecode even when fed with CodeUnits. How
do I prevent this?
1 void main ()
2 {
3import std.stdio;
4import std.string;
On Wednesday, 2 August 2017 at 15:52:13 UTC, Steven Schveighoffer
wrote:
[...]
First, as a tip, please post either a link to a paste site, or
don't put the line numbers. It's much easier to copy-paste your
code into an editor if you don't have the line numbers.
With pleasure.
[...]
If we
On Wednesday, 2 August 2017 at 17:37:09 UTC, Steven Schveighoffer
wrote:
What is expected? What I see on the screen when I run my code
is:
[Ü]
Upper case?
What I see when I run your "working" code is:
[?]
Your terminal is incapable of rendering the Latin-1 encoding. The
program prints
test.d
---
void main ()
{
}
---
$ dmd -c test.d
$ cc -o test test.o -L/[...]/dmd2/linux/lib64 -lphobos2 -static
-lpthread -lrt
/[...]/dmd2/linux/lib64/libphobos2.a(sections_elf_shared_774_420.o): In
function `_D2rt19sections_elf_shared11getTLSRangeFNbNimmZAv':
src/rt/sections_elf_shared.d:(.te
On Saturday, 19 August 2017 at 14:07:49 UTC, kdevel wrote:
src/rt/sections_elf_shared.d:(.text._D2rt19sections_elf_shared11getTLSRangeFNbNimmZAv[_D2rt19sections_elf_shared11getTLSRangeFNbNimmZAv]+0x38):
undefined reference to `__tls_get_addr'
https://issues.dlang.org/show_bug.cgi?id=12268
On Sunday, 17 September 2017 at 13:53:26 UTC, Ky-Anh Huynh wrote:
Is it possible to read just the second word from an input
string and skip all others?
"one two three".formattedRead!("%s %s", _, saveme)
---
import std.range;
auto saveme = "one two three".split.array [2];
---
On Tuesday, 19 September 2017 at 13:28:22 UTC, Ky-Anh Huynh wrote:
Hi,
I want to read two fields from STDIN
string key;
double value;
line_st.formattedRead!"%s %f"(key, value);
Well it's so different from C. I would use this:
---
auto t = line_st.split.join (' ');
t.formattedRead
On Tuesday, 3 October 2017 at 00:22:28 UTC, Oleg B wrote:
but get error "Resource temporarily unavailable".
You get EAGAIN because there is no data available at the time of
reading.
From the manpage of read:
ERRORS
EAGAIN Non-blocking I/O has been selected using
O_NONBLOCK and no d
On Tuesday, 3 October 2017 at 11:36:28 UTC, Oleg B wrote:
EAGAIN Non-blocking I/O has been selected using
O_NONBLOCK and no data
was immediately available for reading.
And I can't check this without using exception handling?
Your programm shall not read before data is a
On Tuesday, 3 October 2017 at 12:20:09 UTC, Oleg B wrote:
while (!tryWait(pp.pid).terminated)
{
auto cnt = read(fd, buf.ptr, buf.length); //
C-style reading
if (cnt == -1 && errno == EAGAIN) // C-style error
checking
yield();
On Thursday, 12 October 2017 at 15:37:23 UTC, John Burton wrote:
C++ compilers can and do perform such optimizations so I was
wondering if assert in D could cause such behavior according to
the spec.
In the context of ISO-C++ it is meaningless to reason about the
"actual behavior" of a non-co
On Wednesday, 11 October 2017 at 07:09:26 UTC, Daniel Kozak wrote:
You can avoid cast:
void foo(T)(T bar){...}
byte bar = 9;
foo!byte(bar + byte(1));
Sure?
---
void foo(T)(T bar)
{
}
byte bar = 9;
void main ()
{
foo!byte(bar + byte(1));
}
---
byte2.d(7): Error: function byte2.foo!byte.foo
On Thursday, 12 October 2017 at 20:27:03 UTC, Jonathan M Davis
wrote:
On Thursday, October 12, 2017 20:15:41 kdevel via
---
void main ()
{
assert (false);
}
---
qualifies as "invalid, and therefore has undefined behaviour."
A statement, which makes no sense to me. Either it is a
"debuggin
On Friday, 13 October 2017 at 07:47:55 UTC, Daniel Kozak wrote:
but it works ok with immutable, so until you really need to
change bar you can use
immutable bar = 9;
foo!byte(bar + 1);
As Adam wrote two days ago: 'D doesn't do implicit narrowing
conversion... so x + 1 becomes int, but then i
On Friday, 13 October 2017 at 02:22:24 UTC, Jonathan M Davis
wrote:
You've told it that i should never be 3 at that point and that
it's a bug if it is, and as such, it is free to assume that i
is never 3 after the assertion even if the assertion is
compiled out with -release - that is the only
On Saturday, 14 October 2017 at 09:32:32 UTC, Timon Gehr wrote:
Also, UB can and does sometimes mean that the program can
execute arbitrary code. It's called "arbitrary code execution":
https://en.wikipedia.org/wiki/Arbitrary_code_execution
This confuses different levels of reasoning. In C/C++
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