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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Sat, 23 May 2020 23:12:41 +0100
Message-ID: <CAH6eHdShvAsBciOvKebN6JXXk+3Pv8aORjyVdTAFwZaYqQN8SA@mail.gmail.com>
Subject: Re: What about supporting std::numeric_limits, std::make_unsigned_t
 and std::integral concepts as an extension for __uint128_t and __int128_t??
To: sotrdg sotrdg <euloanty@live.com>
Cc: "libstdc++" <libstdc++@gcc.gnu.org>
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On Sat, 23 May 2020 at 22:02, sotrdg sotrdg via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
> It is absolutely a pain in a template world code like this do not work.
>
>                 std::make_unsigned_t<__int128_t>;
>                 static_assert(std::unsigned_integral<__uint128_t>);

They work with -std=gnu++NN options, but not with -std=c++NN options.

If you want to use non-standard extensions, us the gnu++ modes.