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From: Jonathan Wakely <redi@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r10-9573] libstdc++: Avoid narrowing conversion in subrange constructor Date: Mon, 29 Mar 2021 20:01:38 +0000 (GMT) [thread overview] Message-ID: <20210329200138.0EE3F3851C3E@sourceware.org> (raw) https://gcc.gnu.org/g:4ab3d8aca1f377a4cbc94316770e629462ff8bbd commit r10-9573-g4ab3d8aca1f377a4cbc94316770e629462ff8bbd Author: Jonathan Wakely <jwakely@redhat.com> Date: Thu Oct 29 22:47:22 2020 +0000 libstdc++: Avoid narrowing conversion in subrange constructor libstdc++-v3/ChangeLog: * include/std/ranges (subrange::subrange(R&&)): Use direct-initialization instead of list-initialization, so a potential narrowing conversion from ranges::size(r) to the stored size isn't ill-formed. (cherry picked from commit a55cda891d69b5a238d2e237903829995ca7249c) Diff: --- libstdc++-v3/include/std/ranges | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges index 8d3b662f928..78dacbe5ec7 100644 --- a/libstdc++-v3/include/std/ranges +++ b/libstdc++-v3/include/std/ranges @@ -282,7 +282,7 @@ namespace ranges && convertible_to<sentinel_t<_Rng>, _Sent> constexpr subrange(_Rng&& __r) requires _S_store_size && sized_range<_Rng> - : subrange{__r, ranges::size(__r)} + : subrange(__r, ranges::size(__r)) { } template<__detail::__not_same_as<subrange> _Rng>
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