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Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.

From: Daniel Krügler <daniel dot kruegler at gmail dot com>
To: Ville Voutilainen <ville dot voutilainen at gmail dot com>
Cc: Jonathan Wakely <jwakely at redhat dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "libstdc++" <libstdc++ at gcc dot gnu dot org>
Date: Sat, 16 Jul 2016 18:54:47 +0200
Subject: Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
Authentication-results: sourceware.org; auth=none
References: <CAFk2RUbce8dBcX4f1fwGf_29odcUzO_poAEFTB1icVeyUHWW+w@mail.gmail.com> <20160712223138.GB12493@redhat.com> <CAFk2RUYZyww4WJeJ-MJpu7iOHX0OHux0GoYx-34AF1dOGGckcw@mail.gmail.com> <CAGNvRgALDqLsm9QF5cVQBDAO5=ODcB7iAYv0Hka8VJghjFXyvw@mail.gmail.com> <CAFk2RUbkMF1oa=Rua_7Acr-PX43VhRPSCdG-rJ3ErGjNGrYJgg@mail.gmail.com>

2016-07-13 20:32 GMT+02:00 Ville Voutilainen <ville.voutilainen@gmail.com>:
> On 13 July 2016 at 21:25, Daniel Krügler <daniel.kruegler@gmail.com> wrote:
>> How would you feel about the introduction of an internal trait
>> __is_boolean_testable, that would test both is_convertible<const T&,
>> bool> and is_constructible<bool, const T&> for now, so that we could
>> reuse that at places like these and others pointed out by LWG 2114?
>>
>> If you like that idea, I would work on a contribution.
>
> Sounds like an excellent idea to me.

I have opened an enhancement request and have now a (actually two)
proposal(s) for this. I would appreciate if you could express your
opinion here:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71899#c1

Thanks,

- Daniel

References:
- [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
  - From: Ville Voutilainen
- Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
  - From: Jonathan Wakely
- Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
  - From: Ville Voutilainen
- Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
  - From: Daniel Krügler
- Re: [v3 PATCH] Implement P0307R2, Making Optional Greater Equal Again.
  - From: Ville Voutilainen

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