Re: Bitfileds Error: no identifier for declarator
On Thursday, 28 October 2021 at 05:20:35 UTC, data pulverizer wrote: Hi, I am trying to compile the following items: [...] Try renaming debug to something else
Re: Bitfileds Error: no identifier for declarator
On Thursday, 28 October 2021 at 05:51:27 UTC, Imperatorn wrote: On Thursday, 28 October 2021 at 05:20:35 UTC, data pulverizer wrote: Hi, I am trying to compile the following items: [...] Try renaming debug to something else uint, "debugflag",1,
Re: Bitfileds Error: no identifier for declarator
On Thursday, 28 October 2021 at 05:20:35 UTC, data pulverizer
wrote:
I am trying to compile the following items:
struct sxpinfo_struct {
mixin(bitfields!(
// ...
uint, "debug",1,
// ...
}
```
But I get the error...
`debug` is a language keyword, try a different one, like "debug_".
That error message though, much wow.
Re: Bitfileds Error: no identifier for declarator
On Thursday, 28 October 2021 at 05:20:35 UTC, data pulverizer
wrote:
Hi,
I am trying to compile the following items ...
Sorry forgot to prepend:
```
enum SEXPTYPE
{
NILSXP = 0,
SYMSXP = 1,
LISTSXP = 2,
CLOSXP = 3,
ENVSXP = 4,
PROMSXP = 5,
LANGSXP = 6,
SPECIALSXP = 7,
BUILTINSXP = 8,
CHARSXP = 9,
LGLSXP = 10,
INTSXP = 13,
REALSXP = 14,
CPLXSXP = 15,
STRSXP = 16,
DOTSXP = 17,
ANYSXP = 18,
VECSXP = 19,
EXPRSXP = 20,
BCODESXP = 21,
EXTPTRSXP = 22,
WEAKREFSXP = 23,
RAWSXP = 24,
S4SXP = 25,
NEWSXP = 30,
FREESXP = 31,
FUNSXP = 99
}
```
In case someone is trying to replicate the error.
Bitfileds Error: no identifier for declarator
Hi,
I am trying to compile the following items:
```
import std.bitmanip: bitfields;
enum TYPE_BITS = 5;
enum NAMED_BITS = 16;
struct sxpinfo_struct {
mixin(bitfields!(
SEXPTYPE, "type", TYPE_BITS,
uint, "scalar", 1,
uint, "obj", 1,
uint, "alt", 1,
uint, "gp", 16,
uint, "mark", 1,
uint, "debug",1,
uint, "trace",1,
uint, "spare",1,
uint, "gcgen", 1,
uint, "gccls", 3,
uint, "named", NAMED_BITS,
uint, "extra", 32 - NAMED_BITS));
}
```
But I get the error:
```
Error: no identifier for declarator `uint`
Error: identifier or integer expected inside `debug(...)`, not `)`
Error: found `@` when expecting `)`
Error: no identifier for declarator `safe`
Error: declaration expected, not `return`
Error: no identifier for declarator `void`
Error: identifier or integer expected inside `debug(...)`, not
`uint`
Error: found `v` when expecting `)`
Error: declaration expected, not `)`
Error: declaration expected, not `assert`
Error: basic type expected, not `cast`
Error: found `cast` when expecting `;`
Error: declaration expected, not `(`
```
All referencing the `bitfields` `mixin`, more specifically the
last two lines but I think it's actually referencing the expanded
`mixin` rather than my declaration.
Thanks
Re: Are there anything like leetcode.com but that supports D?
On Thursday, 28 October 2021 at 01:29:41 UTC, Siarhei Siamashka wrote: On Sunday, 24 October 2021 at 05:46:48 UTC, Dr Machine Code wrote: I'd like that to some friends getting start with programming. There are also websites, which host programming competitions. Beginners friendly: * https://atcoder.jp/ * https://www.codechef.com/ Higher difficulty: * https://codeforces.com/ * https://codingcompetitions.withgoogle.com/kickstart All of them support D language. Sounds good, thank you too
Linker issues with struct postblit
I am a maintainer of the
[dhtslib](https://github.com/blachlylab/dhtslib) package and I
have been running into issues with a new implementation of
reference counting we are using.
Below is the implementation (which is basically our replacement
for `RefCounted`).
```d
/// Template struct that wraps an htslib
/// pointer and reference counts it and then
/// destroys with destroyFun when it goes
/// truly out of scope
struct SafeHtslibPtr(T, alias destroyFun)
if(!isPointer!T && isSomeFunction!destroyFun)
{
@safe @nogc nothrow:
/// data pointer
T * ptr;
/// reference counting
shared int* refct;
/// initialized?
bool initialized;
/// ctor that respects scope
this(T * rawPtr) @trusted return scope
{
this.ptr = rawPtr;
this.refct = cast(shared int *) calloc(int.sizeof,1);
(*this.refct) = 1;
this.initialized = true;
}
/// postblit that respects scope
this(this) @trusted return scope
{
if(initialized)atomicOp!"+="(*this.refct, 1);
}
/// allow SafeHtslibPtr to be used as
/// underlying ptr type
alias getRef this;
/// get underlying data pointer
@property nothrow pure @nogc
ref inout(T*) getRef() inout return
{
return ptr;
}
/// take ownership of underlying data pointer
@property nothrow pure @nogc
T* moveRef()
{
T * ptr;
move(this.getRef, ptr);
return ptr;
}
/// dtor that respects scope
~this() @trusted return scope
{
if(!this.initialized) return;
if(atomicOp!"-="(*this.refct, 1)) return;
if(this.ptr){
free(cast(int*)this.refct);
/// if destroy function return is void
/// just destroy
/// else if return is int
/// destroy then check return value
/// else don't compile
static if(is(ReturnType!destroyFun == void))
destroyFun(this.ptr);
else static if(is(ReturnType!destroyFun == int))
{
auto err = destroyFun(this.ptr);
if(err != 0)
hts_log_errorNoGC!__FUNCTION__("Couldn't
destroy/close "~T.stringof~" * data using function
"~__traits(identifier, destroyFun));
}else{
static assert(0, "HtslibPtr doesn't recognize
destroy function return type");
}
}
}
}
```
This can be used as such to reference count a pointer created
from the c library [htslib](https://github.com/samtools/htslib)
as such:
```d
/// bam1_t is a struct from c bindings
/// bam_destroy1 is a function to clean up a bam1_t *
/// that is created from the c bindings
alias Bam1 = SafeHtslibPtr!(bam1_t, bam_destroy1);
auto b = Bam1(bam_init1());
```
The issue presents with `SAMRecord`:
```d
struct SAMRecord
{
/// Backing SAM/BAM row record
Bam1 b;
/// Corresponding SAM/BAM header data
SAMHeader h;
```
dhtslib itself builds fine on both dmd and ldc compilers but when
it is used as a dependency it seems to have issues building on
any compiler that is not ldc > v1.24.0:
```
_D39TypeInfo_S7dhtslib3sam6record9SAMRecord6__initZ: error:
undefined reference to
`_D7dhtslib3sam6record9SAMRecord15__fieldPostblitMFNbNiNlNeZv'
```
Though I only experience this when trying to create an array of
`SAMRecord`s.
One solution I have found is using `std.array.Appender` instead
of arrays.
Another solution I have found is to define an explicit postblit
for `SAMReader`:
```
this(this)
{
this.h = h;
this.b = b;
}
```
Looking through ldc changelogs, the closest thing I could
attribute this to is this change for ldc-1.25.0:
- Struct TypeInfos are emitted into referencing object files
only, and special TypeInfo member functions into the owning
object file only. (#3491)
I suspect this is something to do with the alias'd function in
`SafeHtslibPtr`. Is there something I should be doing differently?
Re: Are there anything like leetcode.com but that supports D?
On Sunday, 24 October 2021 at 05:46:48 UTC, Dr Machine Code wrote: I'd like that to some friends getting start with programming. There are also websites, which host programming competitions. Beginners friendly: * https://atcoder.jp/ * https://www.codechef.com/ Higher difficulty: * https://codeforces.com/ * https://codingcompetitions.withgoogle.com/kickstart All of them support D language.
Re: What is D's "__debugbreak()" equivalent?
On Wednesday, 27 October 2021 at 17:07:31 UTC, H. S. Teoh wrote:
asm { int 3; }
yeah that's how i do it in dmd too
Re: What is D's "__debugbreak()" equivalent?
On 10/27/21 12:54 PM, Simon wrote: Microsofts C++ compiler provides the __debugbreak function, which on x86 emits interrupt 3, which will cause the debugger to halt. What is the equivalent in D? I tried using raise(SIGINT) from core.stdc.signal, but that just closes the debugger (I thought that was the same, seems like I was wrong). SIGINT is not an interrupt, it's a POSIX signal. Inline asm maybe? https://dlang.org/spec/iasm.html -Steve
Re: What is D's "__debugbreak()" equivalent?
On Wed, Oct 27, 2021 at 04:54:49PM +, Simon via Digitalmars-d-learn wrote:
> Microsofts C++ compiler provides the __debugbreak function, which on
> x86 emits interrupt 3, which will cause the debugger to halt. What is
> the equivalent in D? I tried using raise(SIGINT) from
> core.stdc.signal, but that just closes the debugger (I thought that
> was the same, seems like I was wrong).
Why not just:
asm { int 3; }
?
Just tested in gdb, it worked.
T
--
MASM = Mana Ada Sistem, Man!
What is D's "__debugbreak()" equivalent?
Microsofts C++ compiler provides the __debugbreak function, which on x86 emits interrupt 3, which will cause the debugger to halt. What is the equivalent in D? I tried using raise(SIGINT) from core.stdc.signal, but that just closes the debugger (I thought that was the same, seems like I was wrong).
Re: Analyze debug condition in template
On Wednesday, 27 October 2021 at 08:14:29 UTC, Kagamin wrote: ... Then the logger can inspect symbols in the template argument and compare their names to the function name. Aha, thank you, i will try!
Re: Analyze debug condition in template
You can do something like
```d
enum LogSettings
{
func1,func2,func3
}
alias logger!LogSettings logf;
void func1()
{
logf(...);
}
```
Then the logger can inspect symbols in the template argument and
compare their names to the function name.
Re: Error: Could not open 'libcmt.lib'
On Monday, 25 October 2021 at 14:43:06 UTC, Willem wrote: Just starting out new with D. Up until now I have been using Python and a bit of OCaml. Error when linking: "lld-link: error: could not open 'libcmt.lib': no such file or directory" What I did: I installed the complete D setup in my Windows 10 PC -- including VS 2019. From the command line "C:\D\dmd2vars64.bat" I was able to creating a simple program with "dub init hello" When executing it with "dub run hello" I get following error: "lld-link: error: could not open 'libcmt.lib': no such file or directory" However -- running "dub run --arch=x86" did work dmd --version DMD64 D Compiler v2.098.0-dirty dub --version DUB version 1.27.0, built on Oct 10 2021 Searching the forum it appear to be related to MS runtimes... but I have not yet been able to resolve it. Any suggestions would be greatly appreciated. Many Thanks. C++ runtime needs to be installed I believe.
Re: TimeoutException for connecting to MySQL using a hunt-entity.
On Monday, 25 October 2021 at 12:54:32 UTC, greenbyte wrote: On Monday, 25 October 2021 at 07:45:26 UTC, Imperatorn wrote: On Friday, 22 October 2021 at 11:42:34 UTC, greenbyte wrote: Hi, all! I use the hunt-entity library to work with MySQL. I get the hunt.Exceptions.TimeoutException: "Timeout in 30 secs" when trying to connect. I configured MySQL and ran the code from the instructions https://github.com/huntlabs/hunt-entity MySQL: mysql Ver 8.0.27 for Linux on x86_64 (MySQL Community Server - GPL) DUB: version 1.25.0, built on Apr 23 2021 In dub.json enabled "hunt-entity": "~>2.7.3" And also of course triple check your credentials etc. Yes. When credentials don't match, I have AccessDenied exception. Are you able to connect to the mysql using something else like a heidisql? Just to isolate whether the issue is mysql configuration or an actual problem with the package.
Re: std.zip expand: memory allocation failed
On Tuesday, 26 October 2021 at 13:43:36 UTC, Steven Schveighoffer wrote: On 10/26/21 2:32 AM, bauss wrote: On Monday, 25 October 2021 at 22:38:38 UTC, Imperatorn wrote: On Monday, 25 October 2021 at 20:50:40 UTC, Steven Schveighoffer wrote: On 10/24/21 8:00 AM, Selim Ozel wrote: It turns out my computer was literally running out of memory as the file was getting unzipped. For some reason to uncompress a 1-gig file with uncompressed size of 4-gig, Zip Archive of D-Lang tries to use more than 16 gig of RAM. I don't know why. Maybe I missed something. I use a Windows 10, DMD v2.091 with x86_mscoff. Wait, x86 is 32-bit. Max address space is 4GB. So maybe it was just trying to use 4GB and running out of memory? -Steve Good catch, but still, should it use so much memory? Definitely not. It shouldn't use a lot of memory when unzipping as it should be done in chunks! You guys aren't getting it: ``` ubyte[] expand(ArchiveMember de); Decompress the contents of a member. Fills in properties extractVersion, flags, compressionMethod, time, crc32, compressedSize, expandedSize, expandedData[], name[], extra[]. ``` Where is it supposed to store that `ubyte[]`? -Steve It's not supposed, but a new implementation can utilize something like a stream.
