Does anyone know how to fix this? Can we please do so? It's been a
problem for like 5 years it seems.
It's a bit insane that we can't resolve any non-linear functions at
compile time.

Manu via Digitalmars-d <digitalmars-d@puremagic.com> wrote:
> Does anyone know how to fix this? Can we please do so? It's been a
> problem for like 5 years it seems.
> It's a bit insane that we can't resolve any non-linear functions at
> compile time.

I've been hoping for that too for a long time. Application to memoization tables is immediate and awesome. -- Andrei

On Thursday, 1 January 2015 at 16:56:24 UTC, Manu via Digitalmars-d wrote:
> Does anyone know how to fix this? Can we please do so? It's been a
> problem for like 5 years it seems.
> It's a bit insane that we can't resolve any non-linear functions at
> compile time.

I was looking for a relevant issue in the bug tracker. I stumbled upon issue [1] and pull request [2] which was closed for the following reasons:

1. if(__ctfe) kills inlining in DMD.
2. Other CTFE math can not be implemented until CTFE-able unions.


[1] https://issues.dlang.org/show_bug.cgi?id=5227
[2] https://github.com/D-Programming-Language/phobos/pull/2521#issuecomment-56265251

On 2015-01-01 17:59:09 +0000, Andrei Alexandrescu said:

> Manu via Digitalmars-d <digitalmars-d@puremagic.com> wrote:
>> Does anyone know how to fix this? Can we please do so? It's been a
>> problem for like 5 years it seems.
>> It's a bit insane that we can't resolve any non-linear functions at
>> compile time.
> 
> I've been hoping for that too for a long time. Application to memoization
> tables is immediate and awesome. -- Andrei

I think that SDC can do this already. :D

On Thursday, 1 January 2015 at 16:56:24 UTC, Manu via Digitalmars-d wrote:
> Does anyone know how to fix this? Can we please do so? It's been a
> problem for like 5 years it seems.
> It's a bit insane that we can't resolve any non-linear functions at
> compile time.

Oh, we got yl2x recently [1].
So, your code here ->
https://github.com/D-Programming-Language/dmd/blob/6fe4b48891ff5d7d171f718b2a4af6ddbb6714ec/src/builtin.c#L183

[1]: https://github.com/D-Programming-Language/dmd/pull/4012

https://issues.dlang.org/show_bug.cgi?id=3749