What is the best way to create range from uniform() function (in other words create a generator based on some function, returning, say, scalar, not range)? I did http://dpaste.dzfl.pl/53e3d9255cd7 but I'm not sure it's the best way. At least sequence using looks ugly

On 08/07/2015 06:59 AM, drug wrote:
> What is the best way to create range from uniform() function (in other
> words create a generator based on some function, returning, say, scalar,
> not range)? I did http://dpaste.dzfl.pl/53e3d9255cd7 but I'm not sure
> it's the best way. At least sequence using looks ugly

There is an undocumented (why?) Generator struct and generate() functin in std.range:

import std.stdio;
import std.range;
import std.random;

void main()
{
    auto r = generate!(() => uniform(0, 6))
             .take(10);
    writefln("%(%s %)", r);
}

Ali

08.08.2015 01:34, Ali Çehreli пишет:
> On 08/07/2015 06:59 AM, drug wrote:
>> What is the best way to create range from uniform() function (in other
>> words create a generator based on some function, returning, say, scalar,
>> not range)? I did http://dpaste.dzfl.pl/53e3d9255cd7 but I'm not sure
>> it's the best way. At least sequence using looks ugly
>
> There is an undocumented (why?) Generator struct and generate() functin
> in std.range:
>
> import std.stdio;
> import std.range;
> import std.random;
>
> void main()
> {
>      auto r = generate!(() => uniform(0, 6))
>               .take(10);
>      writefln("%(%s %)", r);
> }
>
> Ali
>
Oh, thank you very much! That's what doctor prescribed.

On Friday, 7 August 2015 at 22:34:40 UTC, Ali Çehreli wrote:
> There is an undocumented (why?) Generator struct and generate() functin in std.range:

It's new in 2.068, that's why it's missing in the current docs. It's already in the prerelease docs:

http://dlang.org/phobos-prerelease/std_range.html#.generate