From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7934) id 04FEB385800D; Fri, 5 Jan 2024 00:17:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 04FEB385800D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1704413846; bh=VcMnKL5DTtHYkhqNPBEOWZ9yfSMGGiwSHvUUpg8sW0g=; h=From:To:Subject:Date:From; b=fkKXgqy4XdOKIPiLoZraPbMyk2HvdfIWeO0o6VEXWjI0Lg9SrVsge8PkNPRbCwpOG X0xfrun5RJNM/owUm9A4VbrfRW4q/nmeXKpw6bkpK/+vi50NNmz1G3QKsc3iSUK1IN J2YtujzdQEJ/gHtYej/RYik+VTMZ2N87Ce0xoug4= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Ken Matsui To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r14-6929] libstdc++: Use _GLIBCXX_USE_BUILTIN_TRAIT X-Act-Checkin: gcc X-Git-Author: Ken Matsui X-Git-Refname: refs/heads/master X-Git-Oldrev: 3ab4c3816bd5c340b98147ffce13a7f3c161b6cd X-Git-Newrev: f151db0f0ea48c2624baf258dca7ae232896ebf4 Message-Id: <20240105001726.04FEB385800D@sourceware.org> Date: Fri, 5 Jan 2024 00:17:25 +0000 (GMT) List-Id: https://gcc.gnu.org/g:f151db0f0ea48c2624baf258dca7ae232896ebf4 commit r14-6929-gf151db0f0ea48c2624baf258dca7ae232896ebf4 Author: Ken Matsui Date: Mon Sep 11 08:21:50 2023 -0700 libstdc++: Use _GLIBCXX_USE_BUILTIN_TRAIT This patch uses _GLIBCXX_USE_BUILTIN_TRAIT macro instead of __has_builtin in the type_traits header for traits that have a corresponding fallback non-built-in implementation. This macro supports to toggle the use of built-in traits in the type_traits header through _GLIBCXX_DO_NOT_USE_BUILTIN_TRAITS macro, without needing to modify the source code. libstdc++-v3/ChangeLog: * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT. Signed-off-by: Ken Matsui Reviewed-by: Patrick Palka Reviewed-by: Jonathan Wakely Diff: --- libstdc++-v3/include/std/type_traits | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 217cfac13a8..a71162b33ec 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -1481,7 +1481,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION : public __bool_constant<__is_base_of(_Base, _Derived)> { }; -#if __has_builtin(__is_convertible) +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_convertible) template struct is_convertible : public __bool_constant<__is_convertible(_From, _To)> @@ -1531,7 +1531,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #ifdef __cpp_lib_is_nothrow_convertible // C++ >= 20 -#if __has_builtin(__is_nothrow_convertible) +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_nothrow_convertible) /// is_nothrow_convertible_v template inline constexpr bool is_nothrow_convertible_v @@ -1606,7 +1606,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { using type = _Tp; }; /// remove_cv -#if __has_builtin(__remove_cv) +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_cv) template struct remove_cv { using type = __remove_cv(_Tp); }; @@ -1672,7 +1672,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION // Reference transformations. /// remove_reference -#if __has_builtin(__remove_reference) +#if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_reference) template struct remove_reference { using type = __remove_reference(_Tp); }; @@ -3537,7 +3537,7 @@ template * @{ */ #ifdef __cpp_lib_remove_cvref // C++ >= 20 -# if __has_builtin(__remove_cvref) +# if _GLIBCXX_USE_BUILTIN_TRAIT(__remove_cvref) template struct remove_cvref { using type = __remove_cvref(_Tp); };