Re: Article: Writing Julia style multiple dispatch code in D

[data pulverizer via Digitalmars-d-announce]

On Friday, 25 August 2017 at 20:54:05 UTC, jmh530 wrote:
See below. I haven't implemented the random variables yet, but 
otherwise it seems to be working well. There is some trickiness 
with deprecated stuff that I had to hard code, but other than 
that it's pretty generic. Also, I think it is ignoring my check 
to only include public/export stuff. Not sure why that is.


module distribAlt;
...


Wow, I didn't realise that you'd go off and work on it. You need 
to start a package for it! I'll bookmark this one as a little 
reminder of mixin techniques.

Re: D as a Better C

[Michael V. Franklin via Digitalmars-d-announce]

On Friday, 25 August 2017 at 23:13:53 UTC, Mengu wrote:
On Friday, 25 August 2017 at 00:24:14 UTC, Michael V. Franklin 
wrote:
On Thursday, 24 August 2017 at 19:21:31 UTC, Walter Bright 
wrote:

[...]


Great! I look forward to seeing improvements and hope to help.

[...]


i believe that should be an opt-out. what about newcomers? will 
they have to learn how to link std lib?


No, because the dmd.conf that is delivered with the toolchain is 
already ready to go with reasonable defaults; and not hard-coded 
into the compiler.  Advanced users can update dmd.conf or point 
the compiler to a different dmd.conf as they choose.


Mike

Re: D as a Better C

[Mengu via Digitalmars-d-announce]

On Friday, 25 August 2017 at 00:24:14 UTC, Michael V. Franklin 
wrote:
On Thursday, 24 August 2017 at 19:21:31 UTC, Walter Bright 
wrote:

[...]


Great! I look forward to seeing improvements and hope to help.

[...]


i believe that should be an opt-out. what about newcomers? will 
they have to learn how to link std lib?

Re: Article: Writing Julia style multiple dispatch code in D

[jmh530 via Digitalmars-d-announce]

On Friday, 25 August 2017 at 16:01:27 UTC, data pulverizer wrote:


Your wrapping strategy looks sensible though I would probably 
generate them all using string mixins.


See below. I haven't implemented the random variables yet, but 
otherwise it seems to be working well. There is some trickiness 
with deprecated stuff that I had to hard code, but other than 
that it's pretty generic. Also, I think it is ignoring my check 
to only include public/export stuff. Not sure why that is.


module distribAlt;

private template isMemberOf(alias T, string x)
{
import std.traits : hasMember;

enum bool isMemberOf = hasMember!(T, x);
}

private void hasMemberCheck(alias T, string x)()
{
static assert(isMemberOf!(T, x), T.stringof ~ " must have " ~ 
x ~" member to

call " ~ x ~ " function");
}

private string genStructInternals(string funcName, string 
structName)()

{
import dstats.distrib;
import std.array : appender;
import std.algorithm.searching : endsWith;

enum spaces = "";

auto aliasBuf = appender!string();
auto importBuf = appender!string();

enum string invName = "inv" ~ structName;

enum bool anyPDForPMF = false;

importBuf.put(spaces);
importBuf.put("import dstats.distrib : ");

foreach(member; __traits(allMembers, dstats.distrib))
{
static if (__traits(getProtection, member) == "public" ||
   __traits(getProtection, member) == "export")
{
import std.algorithm.searching : startsWith, 
findSplitAfter;

import std.string : toLower;

static if (startsWith(member, funcName))
{
enum string memberAfter = findSplitAfter(member, 
funcName)[1];
enum string lowerMemberAfter = 
toLower(memberAfter);


importBuf.put(member ~ ", ");

aliasBuf.put(spaces);
aliasBuf.put("alias " ~ lowerMemberAfter ~ " = "
  
  ~ member ~ ";");

aliasBuf.put("\n");

static if ((lowerMemberAfter == "pdf") ||
   (lowerMemberAfter == "pmf"))
{
aliasBuf.put(spaces);

aliasBuf.put("alias density = " ~ 
lowerMemberAfter ~ ";");

aliasBuf.put("\n");
}
}
else static if (startsWith(member, invName))
{
enum string memberAfter = findSplitAfter(member, 
invName)[1];


importBuf.put(member ~ ", ");

aliasBuf.put(spaces);
aliasBuf.put("alias i" ~ toLower(memberAfter) ~ " 
= "
  
  ~ member ~ ";");

aliasBuf.put("\n");
}
}
}

if (endsWith(importBuf.data, ", "))
{
string importOut = importBuf.data[0 .. ($ - (", 
".length))] ~";\n";


if (endsWith(aliasBuf.data, "\n"))
return importOut ~ aliasBuf.data[0 .. ($ - 
("\n").length)];

else
assert(0, "No relevant functions in dstats.distrib");
}
else
{
assert(0, "No relevant functions in dstats.distrib");
}
}

private string toLowerFirst(string name)()
{
import std.string : toLower;
import std.conv : to;

string firstLetter = name[0].toLower.to!string;
return firstLetter ~ name[1 .. $];
}

private string toUpperFirst(string name)()
{
import std.string : toUpper;
import std.conv : to;

string firstLetter = name[0].toUpper.to!string;
return firstLetter ~ name[1 .. $];
}

private template GenDistStruct(string name)
{
const char[] GenDistStruct =
"///"~ "\n" ~
"struct " ~ toUpperFirst!(name) ~ "\n" ~
"{\n" ~
genStructInternals!(name, toUpperFirst!(name)) ~ "\n" ~
"}";
}

string GenDistStructs()
{
import dstats.distrib;
import std.array : appender;
import std.algorithm.searching : startsWith, endsWith, 
canFind,
findSplitBefore, 
findSplitAfter;


string[__traits(allMembers, dstats.distrib).length] 
createdStructs;

size_t i;
auto structsBuf = appender!string();

foreach(member; __traits(allMembers, dstats.distrib))
{
static if (__traits(getProtection, member) == "public" ||
   __traits(getProtection, member) == "export")
{
static if ((member.endsWith("PDF") ||
member.endsWith("PMF") ||
member.endsWith("CDF") ||
member.endsWith("CDFR")))
{
static if (member.endsWith("PDF"))
enum string memberBefore =
  
findSplitBefore(member, "PDF")[0];

else static if (member.endsWith("PMF"))
 

Re: D as a Better C

[Jolly James via Digitalmars-d-announce]

On Friday, 25 August 2017 at 15:29:54 UTC, Swoorup Joshi wrote:

On Friday, 25 August 2017 at 08:54:02 UTC, Kagamin wrote:

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.


5 years later...

D - BetterC++ (no gc)
D - BetterJava (full on gc + other goodie tissue)
D - BetterRust (full interoperability with rust)

Forgive my cynicism


D - BetterC# (no simple and easy-to-use generics, complex 
templates instead)
Phobos - Better.NET (pointless names, weird structure, outdated 
stuff)
DCD - BetterIntelliSense (tends to always not find about ~10 of 
all real possibilities, is rather "patched into" IDEs/editors 
than integrated)

Re: D as a Better C

[Parke via Digitalmars-d-announce]

> On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:
>> What is "intermediate D"?

On Fri, Aug 25, 2017 at 1:54 AM, Kagamin via Digitalmars-d-announce
 wrote:
> D with minimal runtime.

Is there any documentation on how to access and use the minimal runtime?

-Parke

Re: Article: Writing Julia style multiple dispatch code in D

[jmh530 via Digitalmars-d-announce]

On Friday, 25 August 2017 at 16:01:27 UTC, data pulverizer wrote:


Your wrapping strategy looks sensible though I would probably 
generate them all using string mixins.


That might require less maintenance going forward.

Re: Article: Writing Julia style multiple dispatch code in D

[data pulverizer via Digitalmars-d-announce]

On Friday, 25 August 2017 at 14:30:03 UTC, jmh530 wrote:
On Friday, 25 August 2017 at 01:04:31 UTC, data pulverizer 
wrote:

[snip]


With respect to your point about immutability, you might be 
interested in the parameterize function in dstats.distrib. I 
hadn't noticed that was there, but I think it accomplishes, to 
a limited extent, the behavior of what you want. It returns a 
delegate with the values of the distribution fixed in there.


Along the same lines, I think below is how I would set it up, 
rather than the mixin approach I discussed above. While it does 
not currently work with the parametrize funciton currently, I 
believe that with some simple adjustments it could.



import std.stdio : writeln;

struct Normal
{ ...


Your wrapping strategy looks sensible though I would probably 
generate them all using string mixins.

Re: D as a Better C

[Swoorup Joshi via Digitalmars-d-announce]

On Friday, 25 August 2017 at 08:54:02 UTC, Kagamin wrote:

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.


5 years later...

D - BetterC++ (no gc)
D - BetterJava (full on gc + other goodie tissue)
D - BetterRust (full interoperability with rust)

Forgive my cynicism

Re: Article: Writing Julia style multiple dispatch code in D

[jmh530 via Digitalmars-d-announce]

On Friday, 25 August 2017 at 01:04:31 UTC, data pulverizer wrote:

[snip]


With respect to your point about immutability, you might be 
interested in the parameterize function in dstats.distrib. I 
hadn't noticed that was there, but I think it accomplishes, to a 
limited extent, the behavior of what you want. It returns a 
delegate with the values of the distribution fixed in there.


Along the same lines, I think below is how I would set it up, 
rather than the mixin approach I discussed above. While it does 
not currently work with the parametrize funciton currently, I 
believe that with some simple adjustments it could.



import std.stdio : writeln;

struct Normal
{
import dstats : normalCDF, normalCDFR, normalPDF, 
invNormalCDF;


alias cdf = normalCDF;
alias cdfr = normalCDFR;
alias pdf = normalPDF;
alias density = pdf;
alias icdf = invNormalCDF;
}

struct LogNormal
{
import dstats : logNormalCDF, logNormalCDFR, logNormalPDF;

alias cdf = logNormalCDF;
alias cdfr = logNormalCDFR;
alias pdf = logNormalPDF;
alias density = pdf;
//no icdf for LogNormal in dstats
}

private void hasMemberCheck(alias T, string x)()
{
import std.traits : hasMember;
static assert(hasMember!(T, x), T.stringof ~ " must have " ~ 
x ~" member to

call " ~ x ~ " function");
}

auto cdf(alias T, U...)(U u)
{
hasMemberCheck!(T, "cdf");

return T.cdf(u);
}

auto pdf(alias T, U...)(U u)
{
hasMemberCheck!(T, "pdf");

return T.pdf(u);
}

auto pmf(alias T, U...)(U u)
{
hasMemberCheck!(T, "pmf");

return T.pmf(u);
}

auto cdfr(alias T, U...)(U u)
{
hasMemberCheck!(T, "cdfr");

return T.cdfr(u);
}

auto density(alias T, U...)(U u)
{
hasMemberCheck!(T, "density");

return T.density(u);
}

auto icdf(alias T, U...)(U u)
{
hasMemberCheck!(T, "icdf");

return T.icdf(u);
}

void main()
{
writeln(Normal.cdf(0.5, 0.0, 1.0));
writeln(cdf!Normal(0.5, 0.0, 1.0));
writeln(icdf!Normal(cdf!Normal(0.5, 0.0, 1.0), 0.0, 1.0));

writeln(LogNormal.cdf(0.5, 0.0, 1.0));
writeln(cdf!LogNormal(0.5, 0.0, 1.0));
//writeln(icdf!LogNormal(cdf!LogNormal(0.5, 0.0, 1.0), 0.0, 
1.0));

//error
}

Re: D as a Better C

[Basile B. via Digitalmars-d-announce]

On Friday, 25 August 2017 at 10:01:25 UTC, Basile B. wrote:

On Friday, 25 August 2017 at 09:50:39 UTC, Suliman wrote:

On Friday, 25 August 2017 at 08:54:02 UTC, Kagamin wrote:

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.


How to pass to dub -betterC flag?


{
...
"dflags" : ["betterC"],
...
}


oops, add the hyphen before, so

{
...
"dflags" : ["-betterC"],
...
}

Re: D as a Better C

[Basile B. via Digitalmars-d-announce]

On Friday, 25 August 2017 at 09:50:39 UTC, Suliman wrote:

On Friday, 25 August 2017 at 08:54:02 UTC, Kagamin wrote:

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.


How to pass to dub -betterC flag?


{
...
"dflags" : ["betterC"],
...
}

Re: D as a Better C

[Suliman via Digitalmars-d-announce]

On Friday, 25 August 2017 at 08:54:02 UTC, Kagamin wrote:

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.


How to pass to dub -betterC flag?

Re: D IDE Coedit - version 3, update 3 released

[Basile B. via Digitalmars-d-announce]

On Friday, 25 August 2017 at 04:29:51 UTC, user1234 wrote:

On Friday, 14 July 2017 at 06:10:08 UTC, Basile B. wrote:
Better integration of D-Scanner. D-Scanner binary is itself 
included from now, in addition to DCD.


See https://github.com/BBasile/Coedit/releases/tag/3_update_3 
for the download links and a complete changelog.


update 4 is available too:



indeed.


https://github.com/BBasile/Coedit/releases/tag/3_update_4

mostly fixes at first glance.


~~mostly~~ only.

Re: D as a Better C

[Kagamin via Digitalmars-d-announce]

On Thursday, 24 August 2017 at 19:09:58 UTC, Parke wrote:

What is "intermediate D"?


D with minimal runtime.

Re: Visual Studio Code code-d serve-d beta release

[Paolo Invernizzi via Digitalmars-d-announce]

On Thursday, 24 August 2017 at 21:45:48 UTC, WebFreak001 wrote:
On Thursday, 24 August 2017 at 08:21:41 UTC, Paolo Invernizzi 
wrote:
On Wednesday, 23 August 2017 at 20:10:01 UTC, WebFreak001 
wrote:

[...]


Can you check?
If I want to build it, what repo and revision should I use?

[...]


git clone https://github.com/Pure-D/serve-d.git
cd serve-d
dub build --build=release


That's what I've done above in the previous post...

I was meaning, in 
`.vscode/extensions/webfreak.code-d-beta-0.17.3/bin` in the macOS 
installation there's a linux workspace-d binary.


If I want to rebuild it for macOS, what version of `workspace-d` 
have I to use?
There's no `workspace-d` source files in 
`webfreak.code-d-beta-0.17.3`, only the binary.


Thanks!

---
Paolo