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InputRange in arrays
Mar 31, 2023
Salih Dincer
Mar 31, 2023
Salih Dincer
Mar 31, 2023
Salih Dincer
March 31, 2023
Gravatar of Salih DincerPosted by Salih DincerReply
Salih Dincer
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Hi, there is a feature when working with the InputRange. I don't know when it released available. May be somewhere D compiler between v2.087 and v2.096 (works) but definitely not before v2.087 (including)...

Anyone know this?

import std.range.primitives;
void main()
{
  auto arr = [0, 1];
  arr.popFront;

  assert(arr.front == 1);
  assert(isInputRange!(typeof(arr)));
}

SDB@79

March 31, 2023
Gravatar of Salih DincerPosted by Salih Dincer
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Salih Dincer
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On Friday, 31 March 2023 at 03:39:51 UTC, Salih Dincer wrote:
> May be somewhere D compiler between v2.087 and v2.096 (works) but definitely not before v2.087 (including)...

Edit: The Phobos library I'm using is corrupted. That's why the last line was giving an error. But has it always been possible for arrays to be used as if they were ranges?

Thanks...

SDB@79
March 31, 2023
Gravatar of Salih DincerPosted by Salih Dincer
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Salih Dincer
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On Friday, 31 March 2023 at 04:15:24 UTC, Salih Dincer wrote:
> 
> ...has it always been possible for arrays to be used as if they were ranges?

Playground is a very useful tool, it responds right away :)

> Up to      2.078.3: Failure with output:
> -----
> onlineapp.d(4): Error: no property 'popFront' for type 'int[]'
> onlineapp.d(6): Error: no property 'front' for type 'int[]'
> -----

> 2.079.1 to 2.087.1: Failure with output:
> -----
> onlineapp.d(4): Error: no property `popFront` for type `int[]`
> onlineapp.d(6): Error: no property `front` for type `int[]`
> -----

> Since      2.088.1: Failure with output:
> -----
> onlineapp.d(4): Error: no property `popFront` for type `int[]`, perhaps `import std.range;` is needed?
> onlineapp.d(6): Error: no property `front` for type `int[]`, perhaps `import std.range;` is needed?
> -----

SDB@79