From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7934) id 36DA63856965; Sat, 8 Jul 2023 05:17:54 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 36DA63856965 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1688793474; bh=Ac+fZ/qfygN9qrBDJjQ5kj+Mf+pmuTPauaATVZ0zqNw=; h=From:To:Subject:Date:From; b=IwyjbOJsrBl2uK6PcVRYyXsl5dH9gOLtJ5xcq1S4NY4ctqhdiPlO89zCIlv+yPxoR 4UF+d36o7mPnLLSsQ5D3OQxN+TjcmXyYYs0suQiDbKPlyp5vB5BmGqcK+4aYXHsuie NRQNS5RoKqXa3qeCQHmDlvgKsMjHrJo/s0/Cb40k= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Ken Matsui To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc(refs/users/kmatsui/heads/is_volatile)] libstdc++: use new built-in trait __is_volatile X-Act-Checkin: gcc X-Git-Author: Ken Matsui X-Git-Refname: refs/users/kmatsui/heads/is_volatile X-Git-Oldrev: e525b7524e6d3ab8cd25508384f77a22f455c335 X-Git-Newrev: f6dc7dbf10d45628b163b1a8fde5e5655f4a4cfd Message-Id: <20230708051754.36DA63856965@sourceware.org> Date: Sat, 8 Jul 2023 05:17:54 +0000 (GMT) List-Id: https://gcc.gnu.org/g:f6dc7dbf10d45628b163b1a8fde5e5655f4a4cfd commit f6dc7dbf10d45628b163b1a8fde5e5655f4a4cfd Author: Ken Matsui Date: Wed Mar 22 16:28:06 2023 -0700 libstdc++: use new built-in trait __is_volatile This patch lets libstdc++ use new built-in trait __is_volatile. libstdc++-v3/ChangeLog: * include/std/type_traits (is_volatile): Use __is_volatile built-in trait. (is_volatile_v): Likewise. Signed-off-by: Ken Matsui Diff: --- libstdc++-v3/include/std/type_traits | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 0e7a9c9c7f3..db74b884b35 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -773,6 +773,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION : public true_type { }; /// is_volatile +#if __has_builtin(__is_volatile) + template + struct is_volatile + : public __bool_constant<__is_volatile(_Tp)> + { }; +#else template struct is_volatile : public false_type { }; @@ -780,6 +786,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template struct is_volatile<_Tp volatile> : public true_type { }; +#endif /// is_trivial template @@ -3214,10 +3221,16 @@ template inline constexpr bool is_const_v = false; template inline constexpr bool is_const_v = true; + +#if __has_builtin(__is_volatile) +template + inline constexpr bool is_volatile_v = __is_volatile(_Tp); +#else template inline constexpr bool is_volatile_v = false; template inline constexpr bool is_volatile_v = true; +#endif template inline constexpr bool is_trivial_v = __is_trivial(_Tp);