C++ Logo

std-proposals

Advanced search

Re: [std-proposals] Grouped-namespace "using" statements (floating the idea)

From: Ville Voutilainen <ville.voutilainen_at_[hidden]>
Date: Mon, 24 Apr 2023 17:59:38 +0300
On Mon, 24 Apr 2023 at 17:52, John Filleau via Std-Proposals
<std-proposals_at_[hidden]> wrote:
>
> Floating the idea for Grouped-namespace "using" statements.
>
> A grouped-namespace using statement is a shorter way to write multiple using statements that share a parent namespace.
>
> using a::b::c::X, a::b::c::Y, a::b::c::Z;
>
> can be replaced with
>
> using a::b::c::{X, Y, Z};

namespace longish {
    namespace verbosish {
        namespace tediousish {
            struct X {};
            struct Y {};
            struct Z {};
        }
    }
}

namespace my_shorten {
    using namespace longish::verbosish::tediousish;
}

int main() {
    using my_shorten::X;
    using my_shorten::Y;
    using my_shorten::Z;
    X x;
    Y y;
    Z z;
}

Received on 2023-04-24 14:59:51