Decimal string to floating point conversion with correct half-to-even rounding

Andrei Alexandrescu SeeWebsiteForEmail at
Fri Aug 7 13:24:36 UTC 2020

On 7/7/20 8:04 AM, Steven Schveighoffer wrote:
> On 7/7/20 7:13 AM, 9il wrote:
>> On Tuesday, 7 July 2020 at 07:49:02 UTC, Walter Bright wrote:
>>> On 7/5/2020 5:46 AM, Joseph Rushton Wakeling wrote:
>>>> On Sunday, 5 July 2020 at 11:07:55 UTC, 9il wrote:
>>>>> There is no risk for DMD and DFL to depend on a Mir's Boost 
>>>>> licensed library. If something happens with Mir or Mir change the 
>>>>> license, DFL will be able to fork the required code at any point in 
>>>>> the Boost licensed part of git history.
>>>> Can't speak for Walter or the D foundation here, but I'm not sure 
>>>> the concern is really about licensing.  It's about putting in place 
>>>> a required dependency on code where maintenance decisions are 
>>>> outside the hands of the D Foundation.
>>> That's right, it's not about the licensing. It's that the DLF should 
>>> control the code it distributes.
>>> Businesses will not want to commit to a balkanized project.
>>> The proposal is for Mir to become a central required component of DMD 
>>> and Phobos. This means it needs to become part of the D Language 
>>> Foundation.
>> These don't serve my business needs. DLF doesn't serve my business 
>> needs. DLF blocks the initiatives my business needs. For the current 
>> state of things being a part of DLF codebase for Mir is nonsense.
> Guys, this is all open source, all licensed identically. There are ways 
> to solve this. Practically speaking, just because DMD depends on Mir, 
> doesn't mean that Mir has control over how the dependency works. DMD can 
> depend on a specific version of Mir, upgraded when reasonable (i.e. it 
> should take a PR change to DMD for upgrading which code exactly is 
> depended on) and if something changes in the future, you can fork it, or 
> move back to using libc. This way, the code is only maintained in one 
> place unless something catastrophic happens.
> In this sense, the DLF *does* control which code is used, as well as if 
> it were in the DMD repository itself.
> We have a boost license for a reason.

FWIW it would be wisest to simply copy the code from Mir into druntime 
now with due credit. It's a minimally committal decision than can be 
easily revisited later. It is legal, appropriate, and there's no shame 
to it any more than it is for other projects to fork (parts of) dmd, 
druntime, or phobos.

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