From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7934) id 40229386C4AD; Sun, 9 Jul 2023 08:50:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 40229386C4AD DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1688892630; bh=cjTmQH7lEr/YGl5MaF4cmXt9Ok+fjvgiKNjxOBKFgrI=; h=From:To:Subject:Date:From; b=b2Z8swzZ8Ws3r6vz0fPT+48sJC6elS4HvbGcYuvRG5w/hhGJrKOiabu0wYcW9kHcp 5zlo1Fqisa+vUoitWH4PFseQrAvC8E9MnxYvNw1Cbho/BocZls4nsz+gMarK6RI2tJ 7wATgdwnLUadQE3Rq/i/RTPHZQDfA6LSVxc6GksQ= 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_signed)] libstdc++: use new built-in trait __is_signed X-Act-Checkin: gcc X-Git-Author: Ken Matsui X-Git-Refname: refs/users/kmatsui/heads/is_signed X-Git-Oldrev: 457e17a312e26ee2d416ed9de16994c1b7f9416f X-Git-Newrev: 8e56cfff36415b33a5a580f65518865e70e49688 Message-Id: <20230709085030.40229386C4AD@sourceware.org> Date: Sun, 9 Jul 2023 08:50:30 +0000 (GMT) List-Id: https://gcc.gnu.org/g:8e56cfff36415b33a5a580f65518865e70e49688 commit 8e56cfff36415b33a5a580f65518865e70e49688 Author: Ken Matsui Date: Tue Mar 21 08:44:32 2023 -0700 libstdc++: use new built-in trait __is_signed This patch lets libstdc++ use new built-in trait __is_signed. libstdc++-v3/ChangeLog: * include/std/type_traits (is_signed): Use __is_signed built-in trait. (is_signed_v): Likewise. Signed-off-by: Ken Matsui Diff: --- libstdc++-v3/include/std/type_traits | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 0e7a9c9c7f3..23ab5a4b1e5 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -865,6 +865,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION : public __bool_constant<__is_abstract(_Tp)> { }; + /// is_signed +#if __has_builtin(__is_signed) + template + struct is_signed + : public __bool_constant<__is_signed(_Tp)> + { }; +#else /// @cond undocumented template::value> @@ -877,11 +884,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// @endcond - /// is_signed template struct is_signed : public __is_signed_helper<_Tp>::type { }; +#endif /// is_unsigned template @@ -3240,8 +3247,14 @@ template template inline constexpr bool is_final_v = __is_final(_Tp); +#if __has_builtin(__is_signed) +template + inline constexpr bool is_signed_v = __is_signed(_Tp); +#else template inline constexpr bool is_signed_v = is_signed<_Tp>::value; +#endif + template inline constexpr bool is_unsigned_v = is_unsigned<_Tp>::value;