Re: What exact debugging information is added to the binary and how to parse it all?

2022-05-13 Thread Basile B. via Digitalmars-d-learn
On Friday, 13 May 2022 at 16:11:14 UTC, BoQsc wrote: Haven't used debuggers or debugged a lot just yet, but I've had this question in my mind and I'd like to inspect some debugging information manually. Are there some kind of documentation or specification and are there a lot of information

Re: What are (were) the most difficult parts of D?

2022-05-12 Thread Basile B. via Digitalmars-d-learn
On Thursday, 12 May 2022 at 15:31:03 UTC, Steven Schveighoffer wrote: On 5/12/22 11:18 AM, jmh530 wrote: On Thursday, 12 May 2022 at 12:13:32 UTC, Basile B. wrote: [snip] ``` is ( Type : TypeSpecialization , TemplateParameterList ) is ( Type == TypeSpecialization , TemplateParameterList ) is (

Re: What are (were) the most difficult parts of D?

2022-05-12 Thread Basile B. via Digitalmars-d-learn
On Thursday, 12 May 2022 at 14:06:13 UTC, Arjan wrote: On Thursday, 12 May 2022 at 11:05:08 UTC, Basile B. wrote: On Wednesday, 11 May 2022 at 05:41:35 UTC, Ali Çehreli wrote: - Operator overloading in certain cases was confusing, I remember that for one particular form once I had to use your

Re: What are (were) the most difficult parts of D?

2022-05-12 Thread Basile B. via Digitalmars-d-learn
On Thursday, 12 May 2022 at 12:13:32 UTC, Basile B. wrote: On Thursday, 12 May 2022 at 11:50:59 UTC, Alain De Vos wrote: Some keywords are overloaded and have different meaning when used in a different place. Also some syntactic-sugar is way to much meaning too many different ways to do the

Re: What are (were) the most difficult parts of D?

2022-05-12 Thread Basile B. via Digitalmars-d-learn
On Thursday, 12 May 2022 at 11:50:59 UTC, Alain De Vos wrote: Some keywords are overloaded and have different meaning when used in a different place. Also some syntactic-sugar is way to much meaning too many different ways to do the same thing. I would prefer one way which is advised. `ptr1

Re: What are (were) the most difficult parts of D?

2022-05-12 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 11 May 2022 at 05:41:35 UTC, Ali Çehreli wrote: What are you stuck at? What was the most difficult features to understand? etc. To make it more meaningful, what is your experience with other languages? Ali Overhall I think that D was not hard to learn because well designed

Re: Trait for "can be instantiated"?

2022-05-11 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 10 May 2022 at 16:10:26 UTC, Ben Jones wrote: On Tuesday, 10 May 2022 at 16:05:15 UTC, H. S. Teoh wrote: Using wrapper structs, etc., for this is IMO total overkill. Just use an enum for your token types. Something like this would suffice: That's basically what sumtype is going

Re: Make shared static this() encoding table compilable

2022-03-14 Thread Basile B. via Digitalmars-d-learn
On Monday, 14 March 2022 at 09:40:00 UTC, zhad3 wrote: Hey everyone, I am in need of some help. I have written this Windows CP949 encoding table https://github.com/zhad3/zencoding/blob/main/windows949/source/zencoding/windows949/table.d which is used to convert CP949 to UTF-16. After some

Re: Detecting manifest contants

2022-03-13 Thread Basile B. via Digitalmars-d-learn
On Saturday, 12 March 2022 at 18:49:32 UTC, Anonymouse wrote: I'm introspecting structs, and I ran into an issue where `__traits(derivedMembers)` includes manifest constant enums in the returned tuple. What is the correct way to statically detect these? The immediate thing that springs to

Re: https://run.dlang.io/ vs All dmd compilers (2.060 - latest)

2022-02-28 Thread Basile B. via Digitalmars-d-learn
On Sunday, 27 February 2022 at 16:14:31 UTC, Matheus wrote: Hi, [...] After one minute I think I get: rdmd playground.d Server error: Thanks, Matheus. This was [reported before]. Apparently this would be caused by a timeout. [reported before]:

Re: Set output location for dub --single

2022-02-28 Thread Basile B. via Digitalmars-d-learn
On Sunday, 27 February 2022 at 16:58:34 UTC, Chris Piker wrote: Hi D Coming from a python background it's worked well to organize my D projects as a dub `sourceLibrary` and then to put top level programs in a directory named `scripts` that are just dub single file projects. So the layout

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 11:12:38 UTC, partypooper wrote: On Monday, 21 February 2022 at 11:07:55 UTC, Basile B. wrote: Yeah there must be another one then. Something actionnable is the documentation. What about Mike Parker answer? if nothrow fails that's because things are checked.

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 11:05:42 UTC, partypooper wrote: On Monday, 21 February 2022 at 10:58:26 UTC, Basile B. wrote: more likely UTFException actually Additionaly catching UTF and Conv exceptions doesn't help. Yeah there must be another one then. Something actionnable is the

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 10:49:13 UTC, partypooper wrote: Do I completely not understand what is `nothrow` or why I can't make function nothrow with just catching StdioException? This doesn't work ```d nothrow void hello() { try { writeln("Hello, World!") } catch (StdioException)

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 10:53:56 UTC, Basile B. wrote: On Monday, 21 February 2022 at 10:49:13 UTC, partypooper wrote: Do I completely not understand what is `nothrow` or why I can't make function nothrow with just catching StdioException? This doesn't work ```d nothrow void hello() {

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 10:53:56 UTC, Basile B. wrote: On Monday, 21 February 2022 at 10:49:13 UTC, partypooper wrote: Do I completely not understand what is `nothrow` or why I can't make function nothrow with just catching StdioException? This doesn't work ```d nothrow void hello() {

Re: Why writeln can't be converted to nothrow with just catching of StdioException

2022-02-21 Thread Basile B. via Digitalmars-d-learn
On Monday, 21 February 2022 at 10:49:13 UTC, partypooper wrote: Do I completely not understand what is `nothrow` or why I can't make function nothrow with just catching StdioException? This doesn't work ```d nothrow void hello() { try { writeln("Hello, World!") } catch (StdioException)

Re: keyword as struct field

2022-02-20 Thread Basile B. via Digitalmars-d-learn
On Sunday, 20 February 2022 at 11:08:55 UTC, partypooper wrote: Hello, I'm new to D. Title is self described, is it possible to use keyword as struct field? Maybe it is XYproblem, so here I will describe a little what I need. I'm parsing some json currently with

Re: Declaring a reusable formula and using it in other scopes.

2022-02-12 Thread Basile B. via Digitalmars-d-learn
On Saturday, 12 February 2022 at 12:36:06 UTC, BoQsc wrote: `bool nextArgumentDoesNotReachEndOfArray = i + 1 < args.length;` How can I declare it out of scope and reuse it in any scope that has `i` and `args.length` declared? Here is an ugly solution, just to encourage someone else to post

Re: Is there an equivavlent to C# boxing in D?

2022-02-12 Thread Basile B. via Digitalmars-d-learn
On Saturday, 12 February 2022 at 16:50:16 UTC, H. S. Teoh wrote: Without alias this it would be harder to pull off, yes. I don't see any other way that allows to unbox *implictly*. That would require a new operator. Something like opCast but more permissive, that works without `cast`.

Re: ldc executable crashes with this code

2022-02-02 Thread Basile B. via Digitalmars-d-learn
On Thursday, 3 February 2022 at 01:51:34 UTC, Basile B. wrote: On Thursday, 3 February 2022 at 01:39:33 UTC, forkit wrote: On Wednesday, 2 February 2022 at 23:30:50 UTC, H. S. Teoh wrote: [...] that explains ldc perhaps (although i don't really get it. It's cast to mutable and being

Re: ldc executable crashes with this code

2022-02-02 Thread Basile B. via Digitalmars-d-learn
On Thursday, 3 February 2022 at 01:39:33 UTC, forkit wrote: On Wednesday, 2 February 2022 at 23:30:50 UTC, H. S. Teoh wrote: [...] that explains ldc perhaps (although i don't really get it. It's cast to mutable and being assigned to mutable. in any case... ldc doesn't like it, but dmd is

Re: Is DMD still not inlining "inline asm"?

2021-11-13 Thread Basile B. via Digitalmars-d-learn
On Friday, 12 November 2021 at 00:46:05 UTC, Elronnd wrote: On Thursday, 11 November 2021 at 13:22:15 UTC, Basile B. wrote: As for now, I know no compiler that can do that. GCC can do it. Somewhat notoriously, you meant "infamously" ? LTO can lead to bugs from underspecified asm

Re: Is DMD still not inlining "inline asm"?

2021-11-11 Thread Basile B. via Digitalmars-d-learn
On Thursday, 11 November 2021 at 08:58:43 UTC, rempas wrote: I've seen from [this](https://forum.dlang.org/post/op.vrzngqeavxi10f@biotronic-laptop) reply in a thread from 2011 that DMD will not inline functions that contain inline assembly. Is this still the case? Yes, this is still the case.

Re: Possible runtime bug in preprocessing of command line arguments passed to the D main

2021-10-24 Thread Basile B. via Digitalmars-d-learn
On Sunday, 24 October 2021 at 14:38:44 UTC, jfondren wrote: [...] With nothing to the contrary, I'd take "must be terminated by a null pointer" as "can't itself be a null pointer". ah yeah, and thanks, of course ... how would the count of arg be known without the sentinel...

Re: Possible runtime bug in preprocessing of command line arguments passed to the D main

2021-10-24 Thread Basile B. via Digitalmars-d-learn
On Sunday, 24 October 2021 at 14:21:52 UTC, Basile B. wrote: The following code, on linux [...] What do you think ? Forgot to say that this change ```diff - execv("a", null); + execv("a", ["whatever".ptr].ptr); ``` makes the problem goes away, so it would be caused by how `null` args are

Possible runtime bug in preprocessing of command line arguments passed to the D main

2021-10-24 Thread Basile B. via Digitalmars-d-learn
The following code, on linux ```d module runnable; ​ extern(C) int execv(const char* p, const char** args); ​ immutable src = ` import std.getopt; void main(string[] args) { bool c; getopt(args, "c", ); } `; ​ void prepareProgram() { import std.process :

Re: How to make a function that accepts optional struct but can accept struct literal too

2021-10-16 Thread Basile B. via Digitalmars-d-learn
On Friday, 15 October 2021 at 20:33:33 UTC, JN wrote: Is there some nice way of achieving something like this C99 code in D? [...] The [literal](https://www.ibm.com/docs/sr/xl-c-and-cpp-aix/13.1.0?topic=operators-compound-literal-expressions) in the C version creates an alloca too but it's

Re: Better debugging?

2021-10-03 Thread Basile B. via Digitalmars-d-learn
On Sunday, 3 October 2021 at 22:21:45 UTC, Tim wrote: Hi all, I am currently using GDB within VScode with the -gc DMD2 compiler switch and my debugging is not amazing. Whenever I inspect a struct/object it just shows me the pointer rather than the object information and strings come up as a

Re: Mutually recursive template expansion

2021-10-02 Thread Basile B. via Digitalmars-d-learn
On Saturday, 2 October 2021 at 08:48:24 UTC, Stephen wrote: Is this by design? No but it's easily explainable. ## without mixins ```d struct Ar { Br b; ubyte a; } struct Br { ubyte b; } ``` `Ar` semantic starts, members are analyzed, that begins with the variable declaration `Br b`. `Br`

Re: 0 cost template instantiation

2021-09-29 Thread Basile B. via Digitalmars-d-learn
On Thursday, 30 September 2021 at 02:02:19 UTC, Hipreme wrote: On Thursday, 30 September 2021 at 01:56:42 UTC, Basile B. wrote: On Thursday, 30 September 2021 at 01:09:47 UTC, Hipreme wrote: I have a template function that all it does is given a symbol, it loads a dll for its type + its name:

Re: 0 cost template instantiation

2021-09-29 Thread Basile B. via Digitalmars-d-learn
On Thursday, 30 September 2021 at 01:09:47 UTC, Hipreme wrote: I have a template function that all it does is given a symbol, it loads a dll for its type + its name: ``` void loadSymbol(alias s, string symName = "")() { static if(symName == "") s =

Re: Which operators cannot be overloaded and why not?

2021-09-13 Thread Basile B. via Digitalmars-d-learn
On Monday, 13 September 2021 at 14:42:42 UTC, jfondren wrote: On Monday, 13 September 2021 at 14:33:03 UTC, user1234 wrote: - condition al expression ` cond ? exp : exp ` And many other boolean operators, unary !, binary && and || https://dlang.org/spec/operatoroverloading.html lists all the

Re: GDC - program runs in one thread, DMD - in 4 threads, why?

2021-09-10 Thread Basile B. via Digitalmars-d-learn
On Friday, 10 September 2021 at 09:27:49 UTC, eugene wrote: Here is test program (which is using DList aggressively) [...] Can this (really unwanted) behavior be disabled in DMD? I do not want to have multiple threads, a program (real program, not the test above) has to be single-threaded.

Re: Absence of isAllocator trait

2021-09-06 Thread Basile B. via Digitalmars-d-learn
On Saturday, 4 September 2021 at 19:43:27 UTC, Per Nordlöw wrote: Is there a reason for the absence of an `isAllocator` trait under `std.experimental.allocator`? I had ask a similar Q once and I've been told that (more or less): It's because the clients of an allocator should rather

Re: issue with static foreach

2021-07-22 Thread Basile B. via Digitalmars-d-learn
On Thursday, 22 July 2021 at 05:57:02 UTC, jfondren wrote: On Thursday, 22 July 2021 at 03:43:44 UTC, someone wrote: ... it compiles no-more: Error: found `End of File` when expecting `}` following compound statement ... what I am doing wrong ? You'll get the same error from this code:

Re: LLVM asm with constraints, and 2 operands

2021-07-19 Thread Basile B. via Digitalmars-d-learn
On Monday, 19 July 2021 at 10:21:58 UTC, kinke wrote: On Sunday, 18 July 2021 at 16:32:46 UTC, Basile B. wrote: - **=x** says "returns in whatever is has to" - **x** (1) is the constraint for input `a`, which is passed as operand **$0** - **x** (2) is the constraint for input `b`, which is

Re: LLVM asm with constraints, and 2 operands

2021-07-18 Thread Basile B. via Digitalmars-d-learn
On Sunday, 18 July 2021 at 17:45:05 UTC, Guillaume Piolat wrote: On Sunday, 18 July 2021 at 16:32:46 UTC, Basile B. wrote: [...] Thanks. Indeed that seems to work even when inline and optimized. Registers are spilled to stack. A minor concern is what happens when the enclosing function is

Re: LLVM asm with constraints, and 2 operands

2021-07-18 Thread Basile B. via Digitalmars-d-learn
On Sunday, 18 July 2021 at 18:47:50 UTC, Basile B. wrote: On Sunday, 18 July 2021 at 17:45:05 UTC, Guillaume Piolat wrote: On Sunday, 18 July 2021 at 16:32:46 UTC, Basile B. wrote: [...] Thanks. Indeed that seems to work even when inline and optimized. Registers are spilled to stack. A

Re: LLVM asm with constraints, and 2 operands

2021-07-18 Thread Basile B. via Digitalmars-d-learn
On Sunday, 18 July 2021 at 11:42:24 UTC, Guillaume Piolat wrote: Is anyone versed in LLVM inline asm? I know how to generate SIMD unary op with: return __asm!int4("pmovsxwd $1,$0","=x,x",a); but I struggle to generate 2-operands SIMD ops like: return __asm!int4("paddd

Re: Faster Dlang Execution

2021-06-08 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 8 June 2021 at 17:10:47 UTC, seany wrote: Hello How can I increase the speed of executable files created via : `dub build -b release` try `dub build -b release --compiler=ldc2` Then you can set some specific DFlags for ldc, like -O3 or --mcpu I am unable to parallellise all of

Re: Compiler Explorer Assembly Output for C, C++ and D (dlang)

2021-05-27 Thread Basile B. via Digitalmars-d-learn
On Thursday, 27 May 2021 at 08:47:50 UTC, Tariq Siddiqui wrote: When using Compiler Explorer (https://godbolt.org/) to compare assembly output of simple programs, why D language assembly output is so long compared to C or C++ output. The simple square function output is the same for C, C++,

Re: cannot I override and mark it as private?

2021-05-12 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 12 May 2021 at 19:35:31 UTC, Jack wrote: I'd to change the visibility of a method overrided from public to private but it doesn't work tho to protected it does. Why is that? ... Why is that? why must I leave it accessible somehow (even if it's protected) to all derived class of

Re: alias & local function

2021-05-09 Thread Basile B. via Digitalmars-d-learn
On Monday, 10 May 2021 at 01:25:10 UTC, Alain De Vos wrote: This does not: ``` import std.stdio; void main() { int afunction(int x){return x;}; it's not static so -> context -> delegate alias myint = int; myint i=5;

Re: class grammar

2021-05-07 Thread Basile B. via Digitalmars-d-learn
On Friday, 7 May 2021 at 18:07:45 UTC, Nick wrote: The class grammar, as defined in the D language specification ... is not clear to me how a user-defined type (such as a class or interface) is also a 'BasicType' (as defined by the grammar). However, the compiler only accepts classes or

Re: Since dmd 2.096.0: import `x.t` is used as a type

2021-05-02 Thread Basile B. via Digitalmars-d-learn
On Sunday, 2 May 2021 at 15:41:13 UTC, kdevel wrote: On Saturday, 1 May 2021 at 16:32:32 UTC, Basile B. wrote: Hard breakage is not acceptable, even if the goal is to introduce a more correct behavior. I still wonder why module names are taken as a candidates for types and functions in the

Re: Fake IFTI-compatible struct constructors

2021-05-01 Thread Basile B. via Digitalmars-d-learn
On Saturday, 1 May 2021 at 21:57:54 UTC, Chad Joan wrote: I came up with a couple techniques for making it seem like templated structs deduce their template parameters from constructor invocations. These are given further down in the post. ... However, this was not to be. Rather, this setup

Re: Since dmd 2.096.0: import `x.t` is used as a type

2021-05-01 Thread Basile B. via Digitalmars-d-learn
On Friday, 30 April 2021 at 21:41:43 UTC, kdevel wrote: On Friday, 30 April 2021 at 19:17:14 UTC, user1234 wrote: [...] Likely a side effect of https://github.com/dlang/dmd/pull/12178 but according to me the new behavior is correct. It breaks my code. I have files named $C containing struct

Re: Derived type

2021-03-31 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 31 March 2021 at 04:49:50 UTC, novice3 wrote: On Tuesday, 30 March 2021 at 21:53:34 UTC, Basile B. wrote: struct Typedef(TBase) { TBase payload; alias payload this; } alias Xobj = Typedef!(void*); This is how std.typecons.Typedef made, IMHO. The problem is this code

Re: Derived type

2021-03-30 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 30 March 2021 at 19:47:41 UTC, novice2 wrote: My tries to make template for struct and alias this: // variant 1 template Typedef(alias Tnew, Tbase) { struct Tnew { Tbase payload; alias payload this; } } you must give a name to the template specialization, using

Re: Using onOutOfMemoryError in C wrappers

2021-03-24 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 24 March 2021 at 08:51:34 UTC, Per Nordlöw wrote: On Wednesday, 24 March 2021 at 08:31:19 UTC, Basile B. wrote: There are several ways to do that. In addition to onOutOfMemoryError, you can use a static instance void v() @nogc nothrow { __gshared oom = new

Re: Using onOutOfMemoryError in C wrappers

2021-03-24 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 24 March 2021 at 07:58:22 UTC, Per Nordlöw wrote: When wrapping C code that tries to allocate memory resources via functions such as X* X_create(); should one call `onOutOfMemoryError();` upon null return? Making more D wrappers `nothrow @nogc`. There are several ways to

Re: Checking for manifest constants

2021-03-05 Thread Basile B. via Digitalmars-d-learn
On Friday, 5 March 2021 at 08:23:09 UTC, Bogdan wrote: I was using a trick with dmd to check for manifest constants which worked until dmd v2.094. Yesterday I tried it on the latest compiler and it failed with: source/introspection/manifestConstant.d(37,28): Error: need this for name of

Re: Dimensions in compile time

2021-02-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 February 2021 at 13:27:14 UTC, Vindex wrote: Thanks everyone! The solution that works for me now looks like this: template ndim(T) { static if (std.traits.isArray!T) { static if (is(typeof(T.init[0]))) { alias SubArrayType = typeof(T.init[0]);

Re: Dimensions in compile time

2021-02-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 February 2021 at 13:13:33 UTC, Basile B. wrote: On Monday, 8 February 2021 at 13:09:53 UTC, Rumbu wrote: On Monday, 8 February 2021 at 12:19:26 UTC, Basile B. wrote: [...] dimensionCount!string should be 2. My take without std.traits: template rank(T: U[], U) { enum rank =

Re: Dimensions in compile time

2021-02-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 February 2021 at 13:09:53 UTC, Rumbu wrote: On Monday, 8 February 2021 at 12:19:26 UTC, Basile B. wrote: [...] dimensionCount!string should be 2. My take without std.traits: template rank(T: U[], U) { enum rank = 1 + rank!U; } template rank(T: U[n], size_t n) { enum

Re: Dimensions in compile time

2021-02-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 February 2021 at 12:19:26 UTC, Basile B. wrote: On Monday, 8 February 2021 at 11:42:45 UTC, Vindex wrote: [...] yeah. --- template dimensionCount(T) { static if (isArray!T) { static if (isMultiDimensionalArray!T) { alias DT =

Re: Dimensions in compile time

2021-02-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 February 2021 at 11:42:45 UTC, Vindex wrote: size_t ndim(A)(A arr) { return std.algorithm.count(typeid(A).to!string, '['); } Is there a way to find out the number of dimensions in an array at compile time? yeah. --- template dimensionCount(T) { static if (isArray!T)

Re: core.atomic for ldc.

2021-01-31 Thread Basile B. via Digitalmars-d-learn
On Monday, 1 February 2021 at 06:12:59 UTC, vitamin wrote: On Monday, 1 February 2021 at 05:23:52 UTC, rikki cattermole wrote: The only difference between dmd, ldc and gdc (in effect) is the backend. While druntime and Phobos will be patched for other platform targets, over all its the same

Re: How define accepted types in a template parameter?

2021-01-16 Thread Basile B. via Digitalmars-d-learn
On Saturday, 16 January 2021 at 18:39:03 UTC, Marcone wrote: For example, I want my function template to only accept integer or string; You can do that with either - `static if` inside the body [1] import std.traits; void foo(T)(T t) { static if (isIntegral!T) {} else static

Re: Template alias as template specialisation not recognized.

2021-01-15 Thread Basile B. via Digitalmars-d-learn
On Saturday, 16 January 2021 at 01:21:24 UTC, Paul wrote: I'm having issues when trying to use a template alias as a template specialisation. When using the following: alias Vec(uint size, Type) = Mat!(size, 1, Type); void setUniform(V : Vec!(L, bool), int L)(string name, V value) {...}

Re: Open question: what code pattern you use usually for null safety problem

2021-01-15 Thread Basile B. via Digitalmars-d-learn
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote: I know there is other threads about null safety and the "possible" ways to support this in D and so on. [...] If it's not a bother, I'd like to know how you usually approach it [...] Thanks!!! I have a opDispatch solution here

Re: Why many programmers don't like GC?

2021-01-14 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 13 January 2021 at 18:58:56 UTC, Marcone wrote: I've always heard programmers complain about Garbage Collector GC. But I never understood why they complain. What's bad about GC? Semi serious answer: In the domain of hoby-ism and small companies programmers that work with

Re: Hardcoded filepaths in compiled exe

2020-12-29 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 30 December 2020 at 01:21:37 UTC, Steven Schveighoffer wrote: On 12/29/20 7:46 PM, Basile B. wrote: On Tuesday, 29 December 2020 at 23:11:25 UTC, Steven Schveighoffer wrote: But I would think a feature should exist that masks the base directory of exception file names. Probably

Re: Hardcoded filepaths in compiled exe

2020-12-29 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 29 December 2020 at 23:11:25 UTC, Steven Schveighoffer wrote: But I would think a feature should exist that masks the base directory of exception file names. Probably worth an enhancement request. -Steve Also aren't dmd output binaries supposed to be "reproducible" ?

Re: Hardcoded filepaths in compiled exe

2020-12-29 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 29 December 2020 at 21:27:07 UTC, Raikia wrote: Interesting. I was able to clobber it with bbe with no issues. I'm surprised the compiler doesn't strip out this potentially sensitive metadata, but I guess I'll just patch it out as part of my build process. Thanks! Other super

Re: dmd: enum to!string slows down compilation

2020-12-29 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 29 December 2020 at 22:42:16 UTC, kdevel wrote: Why is the enum to!string conversion so slow? ~~~slowenumtostringconversion.d private enum S { A, B, C, D, }; [...] one factor is all the template constraints that are evaluated until the right std.conv.to overload gets selected.

Re: Hardcoded filepaths in compiled exe

2020-12-29 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 29 December 2020 at 16:13:53 UTC, Raikia wrote: Hey all, [...] $ strings -a program.exe | grep 'dmd2' C:\D\dmd2\windows\bin\..\..\src\phobos\std\file.d C:\D\dmd2\windows\bin\..\..\src\phobos\std\utf.d C:\D\dmd2\windows\bin\..\..\src\phobos\std\base64.d This problem is more

Re: Get the code of any D-entity as string?

2020-12-27 Thread Basile B. via Digitalmars-d-learn
On Sunday, 27 December 2020 at 12:20:01 UTC, sighoya wrote: On Sunday, 27 December 2020 at 04:13:53 UTC, Max Haughton wrote: Not possible although implementing as a __trait would be about 15 lines I think. I think that too, and it would nicely reuse the work of the compiler to parse the

Re: Get the code of any D-entity as string?

2020-12-26 Thread Basile B. via Digitalmars-d-learn
On Saturday, 26 December 2020 at 12:38:21 UTC, sighoya wrote: On Friday, 25 December 2020 at 23:04:15 UTC, Ali Çehreli wrote: I am probably misunderstanding it but there is the .stringof property for all types: T.stringof. But does stringof really print the declaration as string and not the

Re: gdb + Windows 64: No debugging symbols found

2020-12-26 Thread Basile B. via Digitalmars-d-learn
On Saturday, 26 December 2020 at 11:55:58 UTC, Виталий Фадеев wrote: We have: [...] Problem is: $ gdb ./app.exe GNU gdb (GDB) 9.2 ... (No debugging symbols found in ./app.exe) What is a right way to build .exe and debug with gdb ? Try to build with latest version of LDC and

Re: Slice allocation after appending

2020-12-22 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 22 December 2020 at 22:12:29 UTC, Rekel wrote: According to the D slice article (https://dlang.org/articles/d-array-article.html), slices do not care where they start, only where they end, when checking whether expanding in place is permitable, or at least that is what I

Re: Can I use dub to generate docs?

2020-12-14 Thread Basile B. via Digitalmars-d-learn
On Monday, 14 December 2020 at 02:54:12 UTC, Jack wrote: like dmd's -D flag? you can try $ dub run harbored-mod -- $(find -iname *.d) That will generate doc for all d source in the current working directory.

Re: How to check that function gets ref parameter?

2020-12-13 Thread Basile B. via Digitalmars-d-learn
On Sunday, 13 December 2020 at 16:41:06 UTC, Andrey Zherikov wrote: I'm trying to check that function has 'ref' parameter. The only way I found so far is to use std.traits.Parameters. Here is the code I have: void f(int) {} void g(ref int) {} void main() {

Re: Is this a compiler error? "recursive template expansion"

2020-12-08 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 8 December 2020 at 20:11:40 UTC, Nathan S. wrote: The following code fails to compile. Is this a compiler error or if not what is wrong with the code? What is wrong is that partial specialization is not correct. The correct partial specialization is: --- struct Template2(T) {

Re: betterC question

2020-11-19 Thread Basile B. via Digitalmars-d-learn
On Thursday, 19 November 2020 at 00:07:12 UTC, Dibyendu Majumdar wrote: I have simple test program: import core.stdc.stdio : printf; void test() { int* a; printf("a == null %d\n", a == null); } int function() fp = test; extern (C) void main() { fp(); } Why do I get:

Re: Best way to confine project to 64 bit builds only?

2020-10-17 Thread Basile B. via Digitalmars-d-learn
On Saturday, 17 October 2020 at 14:50:47 UTC, NonNull wrote: I have inherited an open source C project that assumes that the size of a long and the size of a pointer are the same, and I have translated it into very similar D just like

Re: Count template parameters of method

2020-10-11 Thread Basile B. via Digitalmars-d-learn
On Sunday, 11 October 2020 at 06:53:59 UTC, Andrey wrote: 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

Re: Deprecation in traits

2020-09-30 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 29 September 2020 at 17:08:40 UTC, Frak wrote: Hi folks, I've this: /Users/frak/dlang/ldc-1.23.0/bin/../import/std/traits.d(3711): Deprecation: function `std.typecons.Nullable!long.Nullable.get_` is deprecated - Implicit conversion with `alias Nullable.get this` will be removed

Re: How to get the element type of an array?

2020-08-24 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 25 August 2020 at 03:41:06 UTC, Jon Degenhardt wrote: What's the best way to get the element type of an array at compile time? Something like std.range.ElementType except that works on any array type. There is std.traits.ForeachType, but it wasn't clear if that was the right

Re: Introspecting a package for submodules

2020-08-24 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 25 August 2020 at 00:09:38 UTC, Adam D. Ruppe wrote: On Monday, 24 August 2020 at 22:32:52 UTC, Anonymouse wrote: How do I do this? (Is there some other way?) Not really a way. A package doesn't quite exist in D; there is no formal construct that is a package and has a defined

Re: alias restriction??!

2020-07-19 Thread Basile B. via Digitalmars-d-learn
On Sunday, 19 July 2020 at 15:00:59 UTC, Paul Backus wrote: On Sunday, 19 July 2020 at 12:42:47 UTC, Carl Sturtivant wrote: On Sunday, 19 July 2020 at 12:08:07 UTC, Paul Backus wrote: Easiest workaround: ref inout(long) Second() inout { return second.one; } Was trying to avoid this for

Re: alias restriction??!

2020-07-18 Thread Basile B. via Digitalmars-d-learn
On Saturday, 18 July 2020 at 22:49:18 UTC, Dennis wrote: On Saturday, 18 July 2020 at 18:46:16 UTC, Carl Sturtivant wrote: Is there any way to avoid the duplication of the entries in the anonymous union, aside from using a mixin template? I think this would be fixed if

Re: Uploading coverage to Codecov doesn't work

2020-07-14 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 14 July 2020 at 17:52:25 UTC, Basile B. wrote: On Tuesday, 14 July 2020 at 11:05:17 UTC, Mitacha wrote: On Saturday, 11 July 2020 at 09:43:39 UTC, Basile B. wrote: On Wednesday, 8 July 2020 at 15:55:58 UTC, Mitacha wrote: I filed an issue on codecov community forum

Re: Uploading coverage to Codecov doesn't work

2020-07-14 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 14 July 2020 at 11:05:17 UTC, Mitacha wrote: On Saturday, 11 July 2020 at 09:43:39 UTC, Basile B. wrote: On Wednesday, 8 July 2020 at 15:55:58 UTC, Mitacha wrote: I filed an issue on codecov community forum https://community.codecov.io/t/uploading-d-lang-coverage-doesnt-work/1740

Re: Uploading coverage to Codecov doesn't work

2020-07-11 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 8 July 2020 at 15:55:58 UTC, Mitacha wrote: Hello there, I've been trying to setup bitbucket pipelines to submit coverage to codecov, but with no luck. I use `dub run -b unittest-cov` and it generates .lst files correctly, then `bash <(curl -s https://codecov.io/bash) -t

Re: Generating struct .init at run time?

2020-07-02 Thread Basile B. via Digitalmars-d-learn
On Thursday, 2 July 2020 at 10:37:27 UTC, kinke wrote: I don't think a struct should ever be that large, as it can probably only live on the heap anyway and only passed around by refs. I'd probably use a thin struct instead, containing and managing a `double[]` member (or

Re: filter custom version id from __traits code

2020-06-09 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 9 June 2020 at 18:08:01 UTC, Stanislav Blinov wrote: On Tuesday, 9 June 2020 at 17:40:10 UTC, Basile B. wrote: Any idea ? As I replied in the issue report: Instead of static if (!is(mixin(member) == module) && !(is(mixin(member use static if (is(typeof(mixin(member

filter custom version id from __traits code

2020-06-09 Thread Basile B. via Digitalmars-d-learn
I don't see how to filter a custom version identifier from this traits code: --- module test; import std.traits : isCallable; version(all) version = my_version; private bool onlyFuncs() { bool result = true; foreach (member; __traits(allMembers, mixin(__MODULE__))) {

Re: non-constant expression while initializing two dim array

2020-06-08 Thread Basile B. via Digitalmars-d-learn
On Monday, 8 June 2020 at 06:37:18 UTC, tirithen wrote: How can I initialize my two dimensional array? When I try to run the code below I get the error: Error: non-constant expression ["user":[cast(Capability)0], "administrator":[cast(Capability)1]] Code: enum Capability {

Re: Dub Error Message "Invalid variable: DUB"

2020-06-07 Thread Basile B. via Digitalmars-d-learn
On Sunday, 7 June 2020 at 12:24:13 UTC, Russel Winder wrote: On Sun, 2020-06-07 at 10:30 +, Basile B. via Digitalmars-d-learn wrote: […] What is the docker image that you use ? If it is an older version maybe that the $DUB env variable is not yet supported by the dub version that's

Re: Dub Error Message "Invalid variable: DUB"

2020-06-07 Thread Basile B. via Digitalmars-d-learn
On Sunday, 7 June 2020 at 10:06:14 UTC, Russel Winder wrote: On Sun, 2020-06-07 at 10:24 +0100, Russel Winder wrote: Hi, Why on earth is Dub sending out this error message (Invalid variable: DUB) on GitLab but not on Travis-CI or locally? OK, that was slightly rhetorical, more reasonably,

Re: Should it compile?

2020-06-06 Thread Basile B. via Digitalmars-d-learn
On Saturday, 6 June 2020 at 08:55:20 UTC, Jack Applegame wrote: Should it compile? ```d import std.algorithm.mutation; void main() { const char a = void; const char b ='b'; moveEmplace(b, a); // mutation.d: Error: cannot modify const expression target assert(a == 'b'); } ```

Re: Fastest way to check using if identifier has already been defined, using static if or similar?

2020-06-03 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 3 June 2020 at 10:24:44 UTC, Simen Kjærås wrote: On Wednesday, 3 June 2020 at 09:39:34 UTC, Basile B. wrote: You can use this template: enum Exists(alias T) = is(typeof(T)); I don't know if there's a faster way bu this technic is used, notatbly in phobos, to workaroud issues

Re: Fastest way to check using if identifier has already been defined, using static if or similar?

2020-06-03 Thread Basile B. via Digitalmars-d-learn
On Wednesday, 3 June 2020 at 09:03:22 UTC, drathier wrote: I'm generating some code. Some of the generated types need to be overridden, so I define them manually at the top of the generated file. Then I need to guard against redefining the identifier (type/value/function) later on, in the

Re: Making alias of a struct field needs "this".

2020-06-02 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 2 June 2020 at 09:07:08 UTC, Basile B. wrote: On Tuesday, 2 June 2020 at 08:56:13 UTC, realhet wrote: [...] There's a language rule, expressions cant be aliased, however D has a bug, some expressions that look like type can be aliased, then when you use them you have an error

Re: Making alias of a struct field needs "this".

2020-06-02 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 2 June 2020 at 08:56:13 UTC, realhet wrote: Hello, I have a 2 level nested struct structure with nice descriptive field names. And I thought it will be easy to alias those identifierLists with a few letter names and do some calculations on them. But I'm having an error. struct

Re: Postblit segfault.

2020-06-02 Thread Basile B. via Digitalmars-d-learn
On Tuesday, 2 June 2020 at 06:34:14 UTC, MaoKo wrote: On Monday, 1 June 2020 at 19:52:39 UTC, Basile B. wrote: On Monday, 1 June 2020 at 15:55:45 UTC, H. S. Teoh wrote: On Mon, Jun 01, 2020 at 03:27:11PM +, Basile B. via Digitalmars-d-learn wrote: [...] Possibly a backend bug (keyword

Re: Postblit segfault.

2020-06-01 Thread Basile B. via Digitalmars-d-learn
On Monday, 1 June 2020 at 15:55:45 UTC, H. S. Teoh wrote: On Mon, Jun 01, 2020 at 03:27:11PM +, Basile B. via Digitalmars-d-learn wrote: [...] Possibly a backend bug (keyword "wrong code"), caused by either of [1] or [2] [1] https://github.com/dlang/dmd/pull/9357 [2] https://

Re: Postblit segfault.

2020-06-01 Thread Basile B. via Digitalmars-d-learn
On Monday, 1 June 2020 at 14:53:43 UTC, H. S. Teoh wrote: On Mon, Jun 01, 2020 at 01:53:09PM +, Bastiaan Veelo via Digitalmars-d-learn wrote: On Monday, 1 June 2020 at 09:42:44 UTC, Boris Carvajal wrote: > On Monday, 1 June 2020 at 06:35:36 UTC, MaoKo wrote: > > Hello, I don't understand

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