public inbox for libstdc++-cvs@sourceware.org help / color / mirror / Atom feed
From: Ken Matsui <kmatsui@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc(refs/users/kmatsui/heads/is_scalar)] libstdc++: use new built-in trait __is_scalar for std::is_scalar Date: Sat, 8 Jul 2023 04:19:40 +0000 (GMT) [thread overview] Message-ID: <20230708041940.217B33858289@sourceware.org> (raw) https://gcc.gnu.org/g:4f64023297b188a595780423cd4daad3e72b7ff9 commit 4f64023297b188a595780423cd4daad3e72b7ff9 Author: Ken Matsui <kmatsui@gcc.gnu.org> Date: Mon Jul 3 01:56:19 2023 -0700 libstdc++: use new built-in trait __is_scalar for std::is_scalar This patch gets std::is_scalar to dispatch to new built-in trait __is_scalar. libstdc++-v3/ChangeLog: * include/std/type_traits (is_scalar): Use __is_scalar built-in trait. (is_scalar_v): Likewise. Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org> Diff: --- libstdc++-v3/include/std/type_traits | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 0e7a9c9c7f3..bc90b2c61ca 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -678,11 +678,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION struct is_member_pointer; /// is_scalar +#if __has_builtin(__is_scalar) + template<typename _Tp> + struct is_scalar + : public __bool_constant<__is_scalar(_Tp)> + { }; +#else template<typename _Tp> struct is_scalar : public __or_<is_arithmetic<_Tp>, is_enum<_Tp>, is_pointer<_Tp>, is_member_pointer<_Tp>, is_null_pointer<_Tp>>::type { }; +#endif /// is_compound template<typename _Tp> @@ -3204,8 +3211,15 @@ template <typename _Tp> inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; template <typename _Tp> inline constexpr bool is_object_v = is_object<_Tp>::value; + +#if __has_builtin(__is_scalar) +template <typename _Tp> + inline constexpr bool is_scalar_v = __is_scalar(_Tp); +#else template <typename _Tp> inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; +#endif + template <typename _Tp> inline constexpr bool is_compound_v = is_compound<_Tp>::value; template <typename _Tp>
reply other threads:[~2023-07-08 4:19 UTC|newest] Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20230708041940.217B33858289@sourceware.org \ --to=kmatsui@gcc.gnu.org \ --cc=gcc-cvs@gcc.gnu.org \ --cc=libstdc++-cvs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).