How to use xargs to remove whitespaces (Dub executable path)
Hi, I try to get the executable path from a dub package using this command: dub describe dscanner --data=target-path,target-name --data-list | xargs But the output always contains a space between target-path and target-name: /home/user/.dub/packages/dscanner-0.8.0/dscanner/bin/ dscanner How can I get the full path without a space on a debian system in a 1 liner? Kind regards André
Re: Is there has an pdf document for Phobos.
On Wednesday, 4 September 2019 at 03:07:18 UTC, lili wrote: Hi: For some reason it too slow that some times i visited dlang.org, Can admin make a pdf document for download. Documentation is installed with the compiler.
Is there has an pdf document for Phobos.
Hi: For some reason it too slow that some times i visited dlang.org, Can admin make a pdf document for download.
Re: problems with swig generated code
On Tuesday, 3 September 2019 at 20:03:37 UTC, Martin DeMello wrote: On Sunday, 1 September 2019 at 11:19:11 UTC, DanielG wrote: Do you know whether SWIG's D generator is even being maintained? I've searched for it on the forums in the past and got the impression that it's outdated. I didn't realise that :( It was included in the current release of swig, so I figured it was maintained. It's pretty sad if it's not, because trying to access C++ libraries directly from D has some limitations (most notably not being able to create new C++ objects from D) and swig would have let things just work. I think DPP can call constructors. YMMV. We are working on a little project I started as another step in the eternal personal hackathon. Libclang isn't my cup of tea. It's almost very cool but they put in whatever the guy needed and so it's inconsistent but your alternative is code that breaks things between breakfast and teatime. Cling is used at CERN and I found libcling more pleasant. I only wrapped the cppyy fork but that actually allows you to reflect at runtime on a lot. From our DSL at work I can include a header, instantiate a templated type, create an instance of the class and call a method on it. Can, but it's not what I would call fun. I didn't yet get time to wrap the rest of the interpreter. But the idea is to make a tool for wrapping c++ via simpler extern (C++). If one isn't quite sure upfront what will work and not then it's much more pragmatic. I can't see how it won't work but we will know in a week or two. My first version is here. https://github.com/kaleidicassociates/cpp-reflect-d There is another route people don't think of. Calypso can introspect on C++ too. You might not want to use it in production but you don't need to. Either I guess you could use it to generate wrappers or you can use it to replace a chunk of cpp code. The surface area of a method must be larger than thr surface area of a chunk. Well chosen then it's easy to write glue code semi automatically. But it's nice to be able to replace a method at a time and have working code at every step. You don't need to trust Calypso in production to be able to use it for this purpose.
Re: Is removing elements of AA in foreach loop safe?
On Thursday, 29 August 2019 at 10:11:58 UTC, berni wrote:
Iterating of some structure and removing elements thereby is
always errorprone and should be avoided. But: In case of AA,
I've got the feeling, that it might be safe:
foreach (k,v;ways)
if (v.empty)
ways.remove(k);
Do you agree? Or is there a better way to achieve this?
I know, it is foreach loop in question. How about using a reverse
for loop like:
for (size_t i = arr.length ; i-- > 0 ; ){
arr.remove(i);
}
Re: problems with swig generated code
On Sunday, 1 September 2019 at 11:19:11 UTC, DanielG wrote: Do you know whether SWIG's D generator is even being maintained? I've searched for it on the forums in the past and got the impression that it's outdated. I didn't realise that :( It was included in the current release of swig, so I figured it was maintained. It's pretty sad if it's not, because trying to access C++ libraries directly from D has some limitations (most notably not being able to create new C++ objects from D) and swig would have let things just work.
Re: adding delegate to opApply
On Monday, 2 September 2019 at 14:20:11 UTC, Paul Backus wrote:
If you have an existing delegate that you want to use with
opApply, the easiest way is like this:
void delegate(Thing) myDelegate = ...;
foreach(thing; things) {
myDelegate(thing);
}
// Equivalent to: things.opApply((Thing t) => myDelegate(t))
Thanks for your answer. It's not exactly, what I was looking for,
but meanwhile I think, the whole idea was not reasonable. I
meanwhile returned to using a normal function call instead of
opApply, which makes it easy to pass a delegate as one of the
parameters.
Re: Why is sformat and formattedWrite (appender) allocating GC mem here?
On 03.09.19 16:03, James Blachly wrote: For my own learning, why was a unittest to ensure no GC added to sformat instead of a @nogc annotation? `sformat` uses the GC less now, but it's not @nogc. It can still throw GC-allocated exceptions, e.g. when the arguments don't match the format string.
Re: Why is sformat and formattedWrite (appender) allocating GC mem here?
On 8/31/19 5:12 PM, ag0aep6g wrote: I've made a pull request to get rid of those allocations: https://github.com/dlang/phobos/pull/7163 Wonderful! For my own learning, why was a unittest to ensure no GC added to sformat instead of a @nogc annotation?
Re: How stdin.readf ignore space char?
On Tuesday, 3 September 2019 at 13:25:30 UTC, lili wrote: On Tuesday, 3 September 2019 at 13:21:16 UTC, a11e99z wrote: On Tuesday, 3 September 2019 at 12:55:29 UTC, lili wrote: string d = "3.43.3 "; double a; double b; //formattedRead(d,"%f %f", , ); d.readf!" %s %s"(a,b);//hug writeln(a,b); and this too string ds = "1.1 2.2 3.3"; double[] darr; ds.formattedRead!"%( %s%)"( darr ); darr.writeln;
Re: How stdin.readf ignore space char?
On Tuesday, 3 September 2019 at 12:55:29 UTC, lili wrote: Hi guys: input is two line, first line is a number n and second line is n float point number， e.g. 3 1.1 2.2 3.3 how use stdin.readf get all number. u can read array this way too auto darr = readln.split.map!(x => x.to!double).array; darr.writeln;
Re: How stdin.readf ignore space char?
On Tuesday, 3 September 2019 at 13:21:16 UTC, a11e99z wrote: On Tuesday, 3 September 2019 at 12:55:29 UTC, lili wrote: Hi guys: input is two line, first line is a number n and second line is n float point number， e.g. 3 1.1 2.2 3.3 how use stdin.readf get all number. https://dlang.org/library/std/stdio/readf.html see example string d = "3.43.3 "; double a; double b; //formattedRead(d,"%f %f", , ); d.readf!" %s %s"(a,b);//hug writeln(a,b);
Re: How stdin.readf ignore space char?
On Tuesday, 3 September 2019 at 12:55:29 UTC, lili wrote: Hi guys: input is two line, first line is a number n and second line is n float point number， e.g. 3 1.1 2.2 3.3 how use stdin.readf get all number. https://dlang.org/library/std/stdio/readf.html see example
How stdin.readf ignore space char?
Hi guys:
input is two line, first line is a number n and second line is
n float point number，
e.g. 3
1.1 2.2 3.3
how use stdin.readf get all number. i code below but not work
well.
int n;
stdin.readf!"%d\n"(n);
writeln("read n:",n);
foreach (i; 0..n)
{
double x;
stdin.readf!"%f"(x); //only return first number,
why？
writeln(x);
}
Blog Post #67 - Expander
Today's post covers the Expander, a widget that... well... expands to reveal things hidden within. It's not quite a TreeView, but it's also a lot easier to use. You can read all about it here: https://gtkdcoding.com/2019/09/03/0067-mvc-xii-expander.html
Re: Linking D Runtime
On 2019-09-03 03:45, Jonathan Levi wrote: It looks like what needs to be found are "libphobos2" and "libdruntime". They can be found where ever your system puts lib files. Windows (as far as I know) does not have a joined place for lib files so you need to look where dmd/ldc/etc installed itself. On Linux lib files are generally put in `/usr/lib`. Ideally the hunting for lib files should be left to a build tool in order to be system agnostic. In Cabal (Haskell's build tool) add "druntime" and "phobos2" to `extra-libraries`. This depends on how the compiler is installed. There are several installers that do not put the libraries in `/usr/lib`. BTW, that directory doesn't exist by default anymore on macOS, even if Xcode and the command line tools are installed. -- /Jacob Carlborg
Re: Linking D Runtime
On 2019-09-03 10:43, Jacob Carlborg wrote: This depends on how the compiler is installed. There are several installers that do not put the libraries in `/usr/lib`. BTW, that directory doesn't exist by default anymore on macOS, even if Xcode and the command line tools are installed. My bad. "/usr/lib" exists, it's "/usr/include" that usually doesn't exist. -- /Jacob Carlborg
Re: Linking D Runtime
On Saturday, 24 August 2019 at 02:10:19 UTC, Jonathan Levi wrote: I would love a more portable solution though. This should work for now. How are you building the D code? It should be possible to build a library (with -lib and/or -shared) that statically includes the runtime and Phobos. If you want to dynamically link the standard libraries, then you shouldn't need to specify the full path (just "phobos2" and "druntime") as long as they're installed in one of the system's library search paths (see /etc/ld.so.conf on GNU/Linux).
I'm fucking tired of this shit... Why doesn't Visual D install ?
It says right on the front page of it, that it installs in 2019. I of course have the C++ tools installed already because I was doing C++ dev in Qt and needed to. Where's the Visual D menu? Where are the project types? This fucking sucks. Every time I think oh, I could use D on that, it would be perfect... it NEVER FUCKING WORKS. Fuck this shit.
