digitalmars.D.learn - updated mir interface

Alex (25/25) Nov 07 2018 I'm referring to the example

9il (2/5) Nov 07 2018 This is a regression. It is fixed in mir-random v2.1.2.

Alex (16/17) Nov 07 2018 Thanks. But I have another one:

9il (29/46) Nov 07 2018 I have updated template constraints.

Alex (3/31) Nov 07 2018 I will try to adopt this... Thanks a lot!
Alex (29/29) Nov 07 2018 Ok... sorry for being penetrant, but there is still something

drug (3/50) Nov 07 2018 It's not a full answer, but try to add `import std.array;` or its analog...
9il (2/5) Nov 07 2018 Well, fixed in v2.1.3

Alex (3/9) Nov 07 2018 Thanks again!

Alex <sascha.orlov gmail.com> writes:

I'm referring to the example


Could somebody tell me, why

´´´
import mir.random.algorithm;
import std.range; //import mir.range;

void main()
{ // line 5
	size_t[] arr;
	arr.length = 42;
	arr = arr.length.iota.array;
	auto res = rne.sample(arr, 1);
} // line 10
´´´
refuses to compile?

The error message is

/Users/alex/.dub/packages/mir-random-2.1.1/mir-random/source/mir/random/
lgorithm.d(551,23): Error: no property popFrontExactly for type ulong[]
/Users/alex/.dub/packages/mir-random-2.1.1/mir-random/source/mir/random/
lgorithm.d(558,13): Error: template instance
`mir.random.algorithm.RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU,
156LU, 31LU, 13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU,
8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU,
6364136223846793005LU), ulong[]).RandomSample.__ctor!()` error instantiating
/Users/alex/.dub/packages/mir-random-2.1.1/mir-random/source/mir/random/
lgorithm.d(448,35):        instantiated from here: __ctor!()
source/app.d(9,23):        instantiated from here: 
sample!(MersenneTwisterEngine!(ulong, 64LU, 312LU, 156LU, 31LU, 
13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU, 
8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU, 
6364136223846793005LU), ulong[])
dmd failed with exit code 1.

Nov 07 2018

9il <ilyayaroshenko gmail.com> writes:

On Wednesday, 7 November 2018 at 09:33:32 UTC, Alex wrote:
 I'm referring to the example


 [...]

This is a regression. It is fixed in mir-random v2.1.2.

Nov 07 2018

Alex <sascha.orlov gmail.com> writes:

On Wednesday, 7 November 2018 at 14:07:32 UTC, 9il wrote:
 This is a regression. It is fixed in mir-random v2.1.2.

Thanks. But I have another one:

´´´
import mir.random.algorithm;
import std.experimental.all;

void main()
{
	S[] arr;
	arr.length = 42;
	arr.each!((i, ref el) => el.i = i);
	auto res = rne.sample(arr.map!((ref el) => el.i), 1);
}

struct S { size_t i; }
´´´

Does not depend, on whether I use (ref el) or just el... And 
should not depend on that ;)

Nov 07 2018

9il <ilyayaroshenko gmail.com> writes:

On Wednesday, 7 November 2018 at 14:46:17 UTC, Alex wrote:
 On Wednesday, 7 November 2018 at 14:07:32 UTC, 9il wrote:
 This is a regression. It is fixed in mir-random v2.1.2.

 Thanks. But I have another one:

 ´´´
 import mir.random.algorithm;
 import std.experimental.all;

 void main()
 {
 	S[] arr;
 	arr.length = 42;
 	arr.each!((i, ref el) => el.i = i);
 	auto res = rne.sample(arr.map!((ref el) => el.i), 1);
 }

 struct S { size_t i; }
 ´´´

 Does not depend, on whether I use (ref el) or just el... And 
 should not depend on that ;)

I have updated template constraints.


The problem that looks like Phobos map does not define all 
required primitives like popFrontExactly. I suggest using Mir 
instead of Phobos if possible:


https://run.dlang.io/is/NBTfwF

/+dub.sdl:
dependency "mir-algorithm" version="~>3.0.3"
dependency "mir-random" version="~>2.1.1"
+/

import mir.random.algorithm;
import mir.algorithm.iteration;
import mir.ndslice: sliced, iota, map, member;

void main()
{
	S[] arr;
	arr.length = 42;
     // using each
	arr.length.iota.each!((i, ref el) => el.i = i)(arr);

     // or using each and member
     arr.length.iota.each!"b = a"(arr.member!"i");

     // or using assign
     arr.member!"i"[] = arr.length.iota;

	auto res0 = rne.sample(arr.map!((ref el) => el.i), 1);
     // or using member
	auto res1 = rne.sample(arr.member!"i", 1);

}

struct S { size_t i; }

Nov 07 2018

Alex <sascha.orlov gmail.com> writes:

On Wednesday, 7 November 2018 at 17:05:31 UTC, 9il wrote:
 I have updated template constraints.


 The problem that looks like Phobos map does not define all 
 required primitives like popFrontExactly.

Ok... didn't have this on my radar.

 I suggest using Mir instead of Phobos if possible:


 https://run.dlang.io/is/NBTfwF

 /+dub.sdl:
 dependency "mir-algorithm" version="~>3.0.3"
 dependency "mir-random" version="~>2.1.1"
 +/

 import mir.random.algorithm;
 import mir.algorithm.iteration;
 import mir.ndslice: sliced, iota, map, member;

 void main()
 {
 	S[] arr;
 	arr.length = 42;
     // using each
 	arr.length.iota.each!((i, ref el) => el.i = i)(arr);

     // or using each and member
     arr.length.iota.each!"b = a"(arr.member!"i");

     // or using assign
     arr.member!"i"[] = arr.length.iota;

 	auto res0 = rne.sample(arr.map!((ref el) => el.i), 1);
     // or using member
 	auto res1 = rne.sample(arr.member!"i", 1);

 }

 struct S { size_t i; }

I will try to adopt this... Thanks a lot!

Nov 07 2018

Alex <sascha.orlov gmail.com> writes:

Ok... sorry for being penetrant, but there is still something 
strange. Having dependencies as you had,

´´´
import mir.random.algorithm;
import mir.algorithm.iteration;
import mir.ndslice;
import mir.random;

void fun(size_t s){}

void main()
{
	size_t[] arr;
	arr.length = 42;

	rne.sample(arr, 1).each!(el => fun(el));
	foreach(i; rne.sample(arr, 1)) { i.fun; }
}
´´´

I get

/Users/alex/.dub/packages/mir-random-2.1.2/mir-random/source/mir/random/
lgorithm.d(573,48): Error: no property front for type ulong[]
/Users/alex/.dub/packages/mir-algorithm-3.0.3/mir-algorithm/source/mir/algorithm/iteration
d-mixin-922(922,5): Error: template instance
`mir.random.algorithm.RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU,
156LU, 31LU, 13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU,
8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU,
6364136223846793005LU), ulong[]).RandomSample.front!()` error instantiating
/Users/alex/.dub/packages/mir-algorithm-3.0.3/mir-algorithm/source/mir/algorithm/
teration.d(966,25):        instantiated from here: eachImpl!(__lambda1,
RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU, 156LU, 31LU,
13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU,
8202884508482404352LU, 37LU,18444473444759240704LU, 43LU,
6364136223846793005LU), ulong[]))
source/app.d(13,20):        instantiated from here: 
each!(RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU, 
156LU, 31LU, 13043109905998158313LU, 29LU, 6148914691236517205LU, 
17LU, 8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU, 
6364136223846793005LU), ulong[]))
dmd failed with exit code 1.

If I import in mir.random.algorithm.d (2.1.2) in line 534 
std.range, the error goes away. But I assume, that's not the way 
it should be solved, is it?

Nov 07 2018

drug <drug2004 bk.ru> writes:

On 07.11.2018 22:09, Alex wrote:
 Ok... sorry for being penetrant, but there is still something strange. 
 Having dependencies as you had,
 
 ´´´
 import mir.random.algorithm;
 import mir.algorithm.iteration;
 import mir.ndslice;
 import mir.random;
 
 void fun(size_t s){}
 
 void main()
 {
      size_t[] arr;
      arr.length = 42;
 
      rne.sample(arr, 1).each!(el => fun(el));
      foreach(i; rne.sample(arr, 1)) { i.fun; }
 }
 ´´´
 
 I get
 
 /Users/alex/.dub/packages/mir-random-2.1.2/mir-random/source/mir/random/
lgorithm.d(573,48): 
 Error: no property front for type ulong[]
 /Users/alex/.dub/packages/mir-algorithm-3.0.3/mir-algorithm/source/mir/algorithm/iteration
d-mixin-922(922,5): 
 Error: template instance 
 `mir.random.algorithm.RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 
 312LU, 156LU, 31LU, 13043109905998158313LU, 29LU, 6148914691236517205LU, 
 17LU, 8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU, 
 6364136223846793005LU), ulong[]).RandomSample.front!()` error instantiating
 /Users/alex/.dub/packages/mir-algorithm-3.0.3/mir-algorithm/source/mir/algorithm/
teration.d(966,25):        
 instantiated from here: eachImpl!(__lambda1, 
 RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU, 156LU, 31LU, 
 13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU, 
 8202884508482404352LU, 37LU,18444473444759240704LU, 43LU, 
 6364136223846793005LU), ulong[]))
 source/app.d(13,20):        instantiated from here: 
 each!(RandomSample!(MersenneTwisterEngine!(ulong, 64LU, 312LU, 156LU, 
 31LU, 13043109905998158313LU, 29LU, 6148914691236517205LU, 17LU, 
 8202884508482404352LU, 37LU, 18444473444759240704LU, 43LU, 
 6364136223846793005LU), ulong[]))
 dmd failed with exit code 1.
 
 If I import in mir.random.algorithm.d (2.1.2) in line 534 std.range, the 
 error goes away. But I assume, that's not the way it should be solved, 
 is it?

It's not a full answer, but try to add `import std.array;` or its analog 
in mir if exists

Nov 07 2018

9il <ilyayaroshenko gmail.com> writes:

On Wednesday, 7 November 2018 at 19:09:50 UTC, Alex wrote:
 Ok... sorry for being penetrant, but there is still something 
 strange. Having dependencies as you had,

 [...]

Well, fixed in v2.1.3

Nov 07 2018

Alex <sascha.orlov gmail.com> writes:

On Wednesday, 7 November 2018 at 19:40:57 UTC, 9il wrote:
 On Wednesday, 7 November 2018 at 19:09:50 UTC, Alex wrote:
 Ok... sorry for being penetrant, but there is still something 
 strange. Having dependencies as you had,

 [...]

 Well, fixed in v2.1.3

Thanks again!
Works for now.

Nov 07 2018

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digitalmars.D.learn - updated mir interface