On Fri, Sep 09, 2022 at 05:52:37PM +0000, Max Samukha via Digitalmars-d wrote:
> On Friday, 9 September 2022 at 16:55:18 UTC, Puneet Goel wrote:
> > I recently saw a talk by Walter Bright in the recently concluded DConf where Walter made a case for dropping compiler support for Binary literals.
> > 
> > I use Dlang for hardware. Binary literals are scattered everywhere in my code. D is a systems programming language. And thanks to industry-wide FPGA/CPU consolidation, programmable hardware is projected to grow big in the coming years.
> > 
> > Please reconsider binary literal deprecation.
> 
> Same here. Please leave the binary literals alone. In general, "I haven't needed this feature for a long time/my friends don't use it" is a terrible indicator of what is/may be useful.

I also oppose dropping binary literals. Although I don't use them often, the few times I do need them I'm very glad they are there. I consider it one of the niceties of D that C missed, and would be rather disappointed if we dropped it. It would be a pain to have to resort to a template just so I can use binary literals.


T

-- 
Любишь кататься - люби и саночки возить.

On Friday, 9 September 2022 at 16:55:18 UTC, Puneet Goel wrote:
> I recently saw a talk by Walter Bright in the recently concluded DConf where Walter made a case for dropping compiler support for Binary literals.

He thought it was already dropped.... and the octal drop btw wasn't really that much of a success either. We should have went with 0o.

On 09.09.22 21:13, Adam D Ruppe wrote:
> On Friday, 9 September 2022 at 16:55:18 UTC, Puneet Goel wrote:
>> I recently saw a talk by Walter Bright in the recently concluded DConf where Walter made a case for dropping compiler support for Binary literals.
> 
> He thought it was already dropped.... and the octal drop btw wasn't really that much of a success either. We should have went with 0o.

+1.

On Friday, 9 September 2022 at 20:35:49 UTC, Steven Schveighoffer wrote:
> Deprecating 0-leading literals to mean octal is and will always be a success.

Well, yeah, that was a silly syntax. I don't know what the C designers were thinking with that.

But using 0o solves all those problems.

> It runs a simple parser at CTFE which isn't nearly as cheap as the octal parser in the compiler.

Well it isn't like the cheapness really matters tbh since it is a small job. And it is a kinda cool technique that D can do it. I use it in other places too.

Just compared to the 0x and 0b and a prospective 0o.... you're right, it is solidly meh.

On Fri, Sep 09, 2022 at 08:54:08PM +0000, Adam D Ruppe via Digitalmars-d wrote:
> On Friday, 9 September 2022 at 20:35:49 UTC, Steven Schveighoffer wrote:
> > Deprecating 0-leading literals to mean octal is and will always be a success.
> 
> Well, yeah, that was a silly syntax. I don't know what the C designers were thinking with that.

+1.


> But using 0o solves all those problems.

+1. 0o totally makes sense for octal, just as 0x totally makes sense for hexadecimal.


> > It runs a simple parser at CTFE which isn't nearly as cheap as the octal parser in the compiler.
> 
> Well it isn't like the cheapness really matters tbh since it is a small job.  And it is a kinda cool technique that D can do it. I use it in other places too.
> 
> Just compared to the 0x and 0b and a prospective 0o.... you're right, it is solidly meh.

+1.


T

-- 
Famous last words: I *think* this will work...

On 9/9/2022 1:35 PM, Steven Schveighoffer wrote:
> The octal literal template -- meh. It functions. I don't think it's a thing we need to highlight. It runs a simple parser at CTFE which isn't nearly as cheap as the octal parser in the compiler.

That's because it's poorly implemented and overly complex. The implementation I showed in my presentation at Dconf is much simpler.

If you're using a lot of octal literals such that this is an issue, one wonders, what for? The only use I know of is for Unix file permissions.


> The truly ironic thing is that the compiler is still correctly parsing octal literals, so it can tell you how to write them with std.conv.octal ;)

To make transition easier. Simplifying the language has a lot of downstream simplifications.