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From: Tim Song <t.canens.cpp@gmail.com>
To: Patrick Palka <ppalka@redhat.com>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>,
	"libstdc++" <libstdc++@gcc.gnu.org>
Subject: Re: [PATCH] libstdc++: Fix access issues in elements_view::_Sentinel [PR100631]
Date: Mon, 17 May 2021 17:20:27 -0500	[thread overview]
Message-ID: <CAPQZVxtRp1ZeYJfB6hy6fAT4+2Ymhx4H8mmpypP8445O89DOxw@mail.gmail.com> (raw)
In-Reply-To: <20210517161736.870316-1-ppalka@redhat.com>

On Mon, May 17, 2021 at 12:21 PM Patrick Palka via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
>           using _Base = elements_view::_Base<_Const>;
>           sentinel_t<_Base> _M_end = sentinel_t<_Base>();
> @@ -3800,7 +3807,7 @@ namespace views::__adaptor
>             requires sized_sentinel_for<sentinel_t<_Base>, iterator_t<_Base2>>
>             friend constexpr range_difference_t<_Base>

Preexisting, but this one should be _Base2 - we always want to get the
difference type from the iterator being used.



>             operator-(const _Sentinel& __x, const _Iterator<_Const2>& __y)
> -           { return __x._M_end - __y._M_current; }
> +           { return __x._M_distance_from(__y); }
>

  parent reply	other threads:[~2021-05-17 22:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-17 16:17 Patrick Palka
2021-05-17 16:49 ` Jonathan Wakely
2021-05-17 22:20 ` Tim Song [this message]
2021-05-18  4:42   ` Patrick Palka

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