Re: is it possible to sort a float range ?

2021-06-23 Thread jfondren via Digitalmars-d-learn
On Thursday, 24 June 2021 at 02:33:42 UTC, someone wrote: On Thursday, 24 June 2021 at 01:36:47 UTC, Ali Çehreli wrote: import std.algorithm; lnumRange.sort!(r"a > b"c); return lnumRange; The above works OK. Funny thing indeed, at least to me, totally unexpected. ```d

Re: how to filter associative arrays with foreach ?

2021-06-23 Thread someone via Digitalmars-d-learn
On Monday, 21 June 2021 at 08:31:16 UTC, Ali Çehreli wrote: Two options for byKey and byKeyValue: import std; void main() { auto aa = [ "WS2" : 42, "WS3" : 43 ]; string strComputerIDunwanted = "WS2"; foreach (key; aa.byKey.filter!(k => k != strComputerIDunwanted)) { writeln(key,

Re: is it possible to sort a float range ?

2021-06-23 Thread someone via Digitalmars-d-learn
On Thursday, 24 June 2021 at 01:36:47 UTC, Ali Çehreli wrote: import std.algorithm; lnumRange.sort!(r"a > b"c); return lnumRange; The above works OK. Funny thing indeed, at least to me, totally unexpected. ```d return lnumRange.sort!(r"a > b"c); /// does not work return

Re: is it possible to sort a float range ?

2021-06-23 Thread Ali Çehreli via Digitalmars-d-learn
On 6/23/21 6:09 PM, mw wrote: > I think in most other popular language's std lib: > > container.sort(); > > or > > sort(container); > > > is just one call, and the user will expect the `container` is sorted > after the call. That's exactly the same in D. What's different is, D's sort() does not

Re: Default values in passing delegates to functions

2021-06-23 Thread Ali Çehreli via Digitalmars-d-learn
On 6/23/21 9:16 AM, Anonamoose wrote: > I have a script in which I want a special case where someone can input > something like a potential or a dispersion relation for use in physics > simulations. I want to clean up the implementation for users as not > every situation requires these. So I

Re: is it possible to sort a float range ?

2021-06-23 Thread mw via Digitalmars-d-learn
On Thursday, 24 June 2021 at 00:47:28 UTC, mw wrote: On Thursday, 24 June 2021 at 00:32:31 UTC, Steven Schveighoffer This `SortedRange` definitely need better documentation. E.g. users can easily convert their `sort()` code to D from Java or Python code after reading the doc. I think in

Re: is it possible to sort a float range ?

2021-06-23 Thread mw via Digitalmars-d-learn
On Thursday, 24 June 2021 at 00:32:31 UTC, Steven Schveighoffer wrote: On 6/23/21 7:07 PM, someone wrote: On Wednesday, 23 June 2021 at 22:46:28 UTC, Steven Schveighoffer wrote: Use the `release` method: ```d return lnumRange.sort!(...).release; ``` Fantastic, issue solved, I previously

Re: is it possible to sort a float range ?

2021-06-23 Thread Steven Schveighoffer via Digitalmars-d-learn
On 6/23/21 7:07 PM, someone wrote: On Wednesday, 23 June 2021 at 22:46:28 UTC, Steven Schveighoffer wrote: Use the `release` method: ```d return lnumRange.sort!(...).release; ``` Fantastic, issue solved, I previously used sort ascending even descending but first time on floats. So I

Re: is it possible to sort a float range ?

2021-06-23 Thread someone via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 22:46:28 UTC, Steven Schveighoffer wrote: Use the `release` method: ```d return lnumRange.sort!(...).release; ``` -Steve Fantastic, issue solved, I previously used sort ascending even descending but first time on floats. So I went and searched phobos docs:

Re: is it possible to sort a float range ?

2021-06-23 Thread Jordan Wilson via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 22:46:28 UTC, Steven Schveighoffer wrote: On 6/23/21 6:30 PM, Jordan Wilson wrote: On Wednesday, 23 June 2021 at 19:53:24 UTC, someone wrote: [...] ```sort``` returns a ```SortedRange```, and I believe you wish to return a float. So you can do either ```return

Re: is it possible to sort a float range ?

2021-06-23 Thread someone via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 22:30:29 UTC, Jordan Wilson wrote: ```sort``` returns a ```SortedRange```, and I believe you wish to return a float. no, I want to return the range (full of floats) sorted -think it amount or prices or whatever

Re: Detect if a struct is a 3-float vector

2021-06-23 Thread Steven Schveighoffer via Digitalmars-d-learn
On 6/23/21 6:36 PM, JN wrote: I'm looking for a way to test a struct for these conditions: 1. has members named x, y and z 2. these members are floating point type This works, but feels kinda verbose, is there some shorter way? Can I somehow avoid the hasMember/getMember calls? ```d import

Re: is it possible to sort a float range ?

2021-06-23 Thread Steven Schveighoffer via Digitalmars-d-learn
On 6/23/21 6:30 PM, Jordan Wilson wrote: On Wednesday, 23 June 2021 at 19:53:24 UTC, someone wrote: Please, look for the line marked +++ This is a structure with a public property returning a (still unsorted) range built on-the-fly from already-set properties, a basic range from a to z with

Detect if a struct is a 3-float vector

2021-06-23 Thread JN via Digitalmars-d-learn
I'm looking for a way to test a struct for these conditions: 1. has members named x, y and z 2. these members are floating point type This works, but feels kinda verbose, is there some shorter way? Can I somehow avoid the hasMember/getMember calls? ```d import std.traits; struct Vector3f {

Re: is it possible to sort a float range ?

2021-06-23 Thread Jordan Wilson via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 19:53:24 UTC, someone wrote: Please, look for the line marked +++ This is a structure with a public property returning a (still unsorted) range built on-the-fly from already-set properties, a basic range from a to z with n step where some specific values can be

is it possible to sort a float range ?

2021-06-23 Thread someone via Digitalmars-d-learn
Please, look for the line marked +++ This is a structure with a public property returning a (still unsorted) range built on-the-fly from already-set properties, a basic range from a to z with n step where some specific values can be added in-between. The range is a float which I am currently

Re: String front, back return code point/unit

2021-06-23 Thread H. S. Teoh via Digitalmars-d-learn
On Wed, Jun 23, 2021 at 04:01:24PM +, vit via Digitalmars-d-learn wrote: [...] > My question is not about ranges/iterators but if is good idea > autodecoding custom string or not. No. Autodecoding is one of the decisions we regret because it introduces an unavoidable overhead on basically

Default values in passing delegates to functions

2021-06-23 Thread Anonamoose via Digitalmars-d-learn
I have a script in which I want a special case where someone can input something like a potential or a dispersion relation for use in physics simulations. I want to clean up the implementation for users as not every situation requires these. So I wrote a function with the signature ``` d

Re: String front, back return code point/unit

2021-06-23 Thread vit via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 15:48:57 UTC, Tejas wrote: On Wednesday, 23 June 2021 at 15:31:04 UTC, vit wrote: Hello, I am implementing @nogc string struct similar to c++ std::basic_string (link https://code.dlang.org/packages/basic_string). C++ string has methods front, back and pop_back

Re: String front, back return code point/unit

2021-06-23 Thread Tejas via Digitalmars-d-learn
On Wednesday, 23 June 2021 at 15:31:04 UTC, vit wrote: Hello, I am implementing @nogc string struct similar to c++ std::basic_string (link https://code.dlang.org/packages/basic_string). C++ string has methods front, back and pop_back returning/deleting code units. D strings has functions

String front, back return code point/unit

2021-06-23 Thread vit via Digitalmars-d-learn
Hello, I am implementing @nogc string struct similar to c++ std::basic_string (link https://code.dlang.org/packages/basic_string). C++ string has methods front, back and pop_back returning/deleting code units. D strings has functions (std.range) front, back and popBack returning/deleting