Re: is there a way to embed python 3.7 code in D program?
On Monday, 13 May 2019 at 01:35:58 UTC, evilrat wrote: I have project using pyd with python 3.7, that also using ptvsd (visual studio debugger for python package) to allow mixed debugging right inside VS Code. I'll reduce the code and upload somewhere later. https://github.com/Superbelko/pyd-min Here. Super minimal example, ptvsd can be commented out as well, it is there entirely for debugging.
Re: is there a way to embed python 3.7 code in D program?
On Sunday, 12 May 2019 at 22:36:43 UTC, torea wrote: ok, I'll do some more tests with pyd then. And if I cannot get it to work, I'll have a look at the package! I have project using pyd with python 3.7, that also using ptvsd (visual studio debugger for python package) to allow mixed debugging right inside VS Code. I'll reduce the code and upload somewhere later.
Re: Windows / redirect STDERR to see assert messages
On Sunday, 12 May 2019 at 13:39:15 UTC, Robert M. Münch wrote: If an assert fails, I don't see any output. Is assert using something else? What's wrong about this approach? You might need to catch all the throwable exceptions and print your way instead...
Re: is there a way to embed python 3.7 code in D program?
On Sunday, 12 May 2019 at 21:01:31 UTC, Nicholas Wilson wrote: On Sunday, 12 May 2019 at 20:06:34 UTC, torea wrote: Hi, I'd like to use D for the "brain" of a small robot (Anki vector) whose API is coded in Python 3.6+. I had a look at Pyd but it's limited to python 2.7... It isn't. You may needs to set a dub version, or it may pick up the 2.7 as the default but it definitely works (I'm travelling ATM, can't check). ok, I'll do some more tests with pyd then. And if I cannot get it to work, I'll have a look at the package! Many thanks!!
Re: is there a way to embed python 3.7 code in D program?
On Sunday, 12 May 2019 at 20:06:34 UTC, torea wrote: Hi, I'd like to use D for the "brain" of a small robot (Anki vector) whose API is coded in Python 3.6+. I had a look at Pyd but it's limited to python 2.7... It isn't. You may needs to set a dub version, or it may pick up the 2.7 as the default but it definitely works (I'm travelling ATM, can't check).
Re: is there a way to embed python 3.7 code in D program?
On Sunday, 12 May 2019 at 20:06:34 UTC, torea wrote: Hi, I'd like to use D for the "brain" of a small robot (Anki vector) whose API is coded in Python 3.6+. I had a look at Pyd but it's limited to python 2.7... Would there be other ways to call python functions and retrieve the python objects (including camera image) inside a D program? Best regards You could try to do s.th. similar like this package http://code.dlang.org/packages/matplotlib-d Kind regards Andre
is there a way to embed python 3.7 code in D program?
Hi, I'd like to use D for the "brain" of a small robot (Anki vector) whose API is coded in Python 3.6+. I had a look at Pyd but it's limited to python 2.7... Would there be other ways to call python functions and retrieve the python objects (including camera image) inside a D program? Best regards
Re: Compile time mapping
On Sunday, 12 May 2019 at 18:47:20 UTC, Bogdan wrote:
On Sunday, 12 May 2019 at 17:53:56 UTC, Bastiaan Veelo wrote:
If I understand your question correctly, you have two enums of
equal length, and you want to convert members across enums
according to their position, right?
My question was very vague, sorry about that.
In my use case I'd like to map SDL2 keyboard scan codes to my
own game input keyboard codes. The two enums would look
something like this:
```
enum SDL_Scancode
{
SDL_SCANCODE_UNKNOWN = 0,
SDL_SCANCODE_A = 4,
SDL_SCANCODE_B = 5,
SDL_SCANCODE_C = 6,
SDL_SCANCODE_D = 7,
}
enum MY_Scancode
{
KEY_A,
KEY_B,
KEY_C,
KEY_D,
}
```
The two enums are not of equal length, so in the end I just
decided to create an immutable array of type My_Scancode[]
where the index is an SDL_Scancode and the value is the
corresponding MY_Scancode enum member. I'm ok with using some
memory for this, as long as it's as fast as possible.
If the only difference is the extra _UNKNOWN member, you can
still use the static foreach approach. Just make it a
non-template function and rip out the checks, and add a +1 in the
right place.
Re: Compile time mapping
On Sunday, 12 May 2019 at 17:53:56 UTC, Bastiaan Veelo wrote:
If I understand your question correctly, you have two enums of
equal length, and you want to convert members across enums
according to their position, right?
My question was very vague, sorry about that.
In my use case I'd like to map SDL2 keyboard scan codes to my own
game input keyboard codes. The two enums would look something
like this:
```
enum SDL_Scancode
{
SDL_SCANCODE_UNKNOWN = 0,
SDL_SCANCODE_A = 4,
SDL_SCANCODE_B = 5,
SDL_SCANCODE_C = 6,
SDL_SCANCODE_D = 7,
}
enum MY_Scancode
{
KEY_A,
KEY_B,
KEY_C,
KEY_D,
}
```
The two enums are not of equal length, so in the end I just
decided to create an immutable array of type My_Scancode[] where
the index is an SDL_Scancode and the value is the corresponding
MY_Scancode enum member. I'm ok with using some memory for this,
as long as it's as fast as possible.
Re: Compile time mapping
On Sunday, 12 May 2019 at 17:53:56 UTC, Bastiaan Veelo wrote: On Saturday, 11 May 2019 at 15:48:44 UTC, Bogdan wrote: What would be the most straight-forward way of mapping the members of an enum to the members of another enum (one-to-one mapping) at compile time? If I understand your question correctly, you have two enums of equal length, and you want to convert members across enums according to their position, right? You can do that with a little bit of template programming and static foreach. The following works irrespective of underlying value and type, the only requirement is that there are no duplicate values: https://run.dlang.io/is/dNssel There was an error in the error reporting. That should teach me to never copy+paste if you can static foreach :-) This one is better: https://run.dlang.io/is/TVl9db
Re: Compile time mapping
On Saturday, 11 May 2019 at 15:48:44 UTC, Bogdan wrote:
What would be the most straight-forward way of mapping the
members of an enum to the members of another enum (one-to-one
mapping) at compile time?
If I understand your question correctly, you have two enums of
equal length, and you want to convert members across enums
according to their position, right? You can do that with a little
bit of template programming and static foreach. The following
works irrespective of underlying value and type, the only
requirement is that there are no duplicate values:
https://run.dlang.io/is/dNssel
```
void main()
{
enum FromEnum {F1 = 10, F2, F3}
enum ToEnum {T1 = 20, T2, T3}
enum CharEnum : char {C1 = 'c', C2, C3}
static assert(to!ToEnum(FromEnum.F2) == ToEnum.T2);
static assert(to!ToEnum(FromEnum.F2) == 21);
static assert(to!CharEnum(FromEnum.F2) == CharEnum.C2);
static assert(to!CharEnum(FromEnum.F2) == 'd');
}
// Converts enumerations by position.
T to(T, F)(F f) if (is(F==enum) && is(T == enum))
{
import std.traits;
import std.meta;
static assert(NoDuplicates!(EnumMembers!F).length ==
EnumMembers!F.length,
F.stringof ~ " has duplicates.");
static assert(NoDuplicates!(EnumMembers!T).length ==
EnumMembers!T.length,
F.stringof ~ " has duplicates.");
static assert(EnumMembers!F.length == EnumMembers!T.length,
F.stringof ~ " and " ~ T.stringof ~ " differ in
length.");
static foreach(i, t; EnumMembers!T)
if (rank(f) == i)
return t;
assert(0, "Not an enum member");
}
// Returns i if e is the i-th enumerator of E.
static size_t rank(E)(E e) if (is(E == enum))
{
import std.traits;
static foreach (i, member; EnumMembers!E)
if (e == member)
return i;
assert(0, "Not an enum member");
}
```
Re: Framework design, initialization and framework usage
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/eyya0brc5sbcs09/Bildschirmaufnahme%202019-05-02%20um%2022.09.54.mov?dl=0 Very impressive. Don't want to curb anybody's ambitions but I see massive aliasing in the space and in the time domain. I actually wanted to post a link to the antigrain website, which, however, was removed after its author had passed away 2013. Apparently there is no archive copy of that impressing website. Remains: Wikipedia [1]. [1] https://en.wikipedia.org/wiki/Anti-Grain_Geometry
Re: LDC2 and classic profiling
On Saturday, 11 May 2019 at 11:34:35 UTC, Denis Feklushkin wrote: On Saturday, 11 May 2019 at 09:12:24 UTC, Johan Engelen wrote: Those calls are to templated functions I presume? No Then I don't understand how you'd see instrumentation on functions that you did not compile with -fprofile-instr-generate (indirect calls to such functions may be recorded); the std lib is not compiled with profiling instrumentation, and so you shouldn't see any internal instrumentation of it. Unless those functions are instantiated in your object file (e.g. templates or explicitly inlined functions). Also I changed flags to "dflags-ldc": ["-fprofile-instr-generate", "-O0"] - second flag disables optimisation (I assumed that optimizations magically completely remove calls to my functions. But this is probably not the case.) No, indeed, -O0 doesn't (shouldn't!) matter. Ok. It is strange that you don't see calls to your functions. Just to verify, could you compile a simple program manually (without dub) and verify that you see calls to your own functions? Tried, and it works! Lambdas should also be instrumented, so please test that. Works on simple program too. Excellent. I think dub -v will output the exact commands that dub is executing. Looks like some parts are not compiled with the compile flag, and some other parts are? By the way, if you are on linux, then XRay should work like with clang ( -fxray-instrument ) Tried it, and xray also does not returns any info about my own functions... You tried with DUB or manually? Note that XRay has a (configurable) threshold for not instrumenting very small functions. See for example this test: https://github.com/ldc-developers/ldc/blob/master/tests/instrument/xray_simple_execution.d -Johan
Re: windowsx.h
On 13/05/2019 5:00 AM, Robert M. Münch wrote: On 2019-05-12 10:33:16 +, Robert M. Münch said: Is there any reason why windowsx.h seems to be missing from core.sys.windows? Using DStep I now converted windowsx.h into windowsx.d Is creating a pull-request the correct way to submit it to druntime so that it can be included? Yes. But a generated binding may not be good enough as it is. You may need to modify it.
Re: windowsx.h
On 2019-05-12 10:33:16 +, Robert M. Münch said: Is there any reason why windowsx.h seems to be missing from core.sys.windows? Using DStep I now converted windowsx.h into windowsx.d Is creating a pull-request the correct way to submit it to druntime so that it can be included? -- Robert M. Münch http://www.saphirion.com smarter | better | faster
Re: dub / debug build / missing symbols
On 2019-05-12 16:46:10 +, Ron Tarrant said: Not really familiar with this, but at a guess... Have you tried it without the 32-bit references? There are not 32bit references, but 64bit libs. MS was so smart to name the API Win32, doesn't has to do anything with 32 or 64 bit... If I'm removing the buildType and only use my debug lib, it works and I get the symbols. -- Robert M. Münch http://www.saphirion.com smarter | better | faster
Re: dub / debug build / missing symbols
On Saturday, 11 May 2019 at 16:12:34 UTC, Robert M. Münch wrote:
I somehow managed to get debug symbols into my dub project in
the past.
Now I'm trying to extend my dub configuration to use different
libs for debug and release versions.
"buildTypes" : {
"debug" : {
"libs-windows-x86_64" : ["user32", "gdi32",
"mylib1_d_x64", "mylib2_d_x64"],
},
"release" : {
"libs-windows-x86_64" : ["user32", "gdi32",
"mylib1_x64", "mylib2_x64"],
}
},
And now, the debug build doesn't contain any symbols anymore...
what am I missing?
Not really familiar with this, but at a guess...
Have you tried it without the 32-bit references?
Re: Compile time mapping
On Saturday, 11 May 2019 at 15:48:44 UTC, Bogdan wrote:
What would be the most straight-forward way of mapping the
members of an enum to the members of another enum (one-to-one
mapping) at compile time?
An example of a Initial enum that creates a derived enum using
the same element names but applying a transformation via a
function foo() pus adding some other enum elements in the Derived
one not present in the Initial.
It's a little bit clumsy but works very well.
I use this at module level. This allows to have the Derived enum
at compile time so that it can be used to declare variables or
functions at compile time.
mixin({
string code = "enum Derived : ulong { "~
"init = 0,"; /* We set the dummy
init value to 0 */
static foreach(i; __traits(allMembers, Initial)) {
code ~= i~"= foo(Initial."~i~"),";
}
code ~= "
ALL= Whatever,
THING = 42,
return code ~ "}";
}());
Windows / redirect STDERR to see assert messages
When developing Windows GUI applications I use:
// detach from console and attach to a new one, works for x86 and x86_64
FreeConsole();
AllocConsole();
freopen("CONIN$", "r", stdin);
freopen("CONOUT$", "w", stdout);
freopen("CONOUT$", "w", stderr);
so that the GUI app opens a console for writeln() output etc. I assumed
this should work for assert() messages as well. But it seems it
doesn't. If an assert fails, I don't see any output. Is assert using
something else? What's wrong about this approach?
--
Robert M. Münch
http://www.saphirion.com
smarter | better | faster
Re: LDC2 and classic profiling
On Saturday, 11 May 2019 at 11:38:17 UTC, Denis Feklushkin wrote: Maybe DUB caches binaries and linker links previous non-instrumented object files? I tried "dub clean" and "dub clean-caches" but maybe it is need remove someting else? Checked with "dub -f" and nothing changed.
windowsx.h
Is there any reason why windowsx.h seems to be missing from core.sys.windows? -- Robert M. Münch http://www.saphirion.com smarter | better | faster
Re: Dub fetch
On Saturday, 11 May 2019 at 14:27:50 UTC, Russel Winder wrote: Hi, Is there a way of asking which version of package XXX "dub fetch XXX" will actually fetch. I would like to avoid checking the contents of ~/.dub/packages before and after. Use the `--annotate` option: $ dub fetch dlangide --annotate Fetching dlangide 0.8.17... Please note that you need to use `dub run ` or add it to dependencies of your package to actually use/run it. dub does not do actual installation of packages outside of its own ecosystem.
