From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>, Pedro Alves <pedro@palves.net>
Subject: [PATCH v2 7/8] Use C++17 void_t
Date: Tue, 21 Nov 2023 08:27:34 -0700 [thread overview]
Message-ID: <20231121152817.31859-8-tom@tromey.com> (raw)
In-Reply-To: <20231121152817.31859-1-tom@tromey.com>
C++17 has void_t and make_void, so gdbsupport/traits.h can be
simplified.
Approved-By: Pedro Alves <pedro@palves.net>
---
gdbsupport/traits.h | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/gdbsupport/traits.h b/gdbsupport/traits.h
index f6bb64911be..277e117bead 100644
--- a/gdbsupport/traits.h
+++ b/gdbsupport/traits.h
@@ -43,15 +43,6 @@
namespace gdb {
-/* Pre C++14-safe (CWG 1558) version of C++17's std::void_t. See
- <http://en.cppreference.com/w/cpp/types/void_t>. */
-
-template<typename... Ts>
-struct make_void { typedef void type; };
-
-template<typename... Ts>
-using void_t = typename make_void<Ts...>::type;
-
/* Implementation of the detection idiom:
- http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4502.pdf
@@ -79,7 +70,7 @@ struct detector
/* Implementation of the detection idiom (positive case). */
template<typename Default, template<typename...> class Op, typename... Args>
-struct detector<Default, void_t<Op<Args...>>, Op, Args...>
+struct detector<Default, std::void_t<Op<Args...>>, Op, Args...>
{
using value_t = std::true_type;
using type = Op<Args...>;
--
2.41.0
next prev parent reply other threads:[~2023-11-21 15:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 15:27 Tom Tromey
2023-11-21 15:27 ` [PATCH v2 1/8] Use C++17 [[fallthrough]] attribute Tom Tromey
2023-11-30 18:03 ` Simon Marchi
2023-11-30 19:13 ` Tom Tromey
2023-11-30 21:08 ` Simon Marchi
2023-12-01 3:55 ` Tom Tromey
2023-12-01 4:17 ` Simon Marchi
2023-11-21 15:27 ` [PATCH v2 2/8] Switch to -Wimplicit-fallthrough=5 Tom Tromey
2023-11-21 15:27 ` [PATCH v2 3/8] Enable some C++14 code in array-view.h Tom Tromey
2023-11-21 15:27 ` [PATCH v2 4/8] Use try_emplace in index-write.c Tom Tromey
2023-11-21 15:27 ` [PATCH v2 5/8] Rely on C++17 <new> in new-op.cc Tom Tromey
2023-11-21 15:27 ` [PATCH v2 6/8] Rely on copy elision in scope-exit.h Tom Tromey
2023-11-21 15:27 ` Tom Tromey [this message]
2023-11-21 15:27 ` [PATCH v2 8/8] Remove gdb_static_assert Tom Tromey
2023-11-29 23:28 ` (unknown) Tom Tromey
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=20231121152817.31859-8-tom@tromey.com \
--to=tom@tromey.com \
--cc=gdb-patches@sourceware.org \
--cc=pedro@palves.net \
/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: link
Be 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).