[gcc r13-8459] Daily bump.

[gcc r13-8459] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:427349d8db30028ea5c9a8ba83b390f465fa041f

commit r13-8459-g427349d8db30028ea5c9a8ba83b390f465fa041f
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Sun Mar 17 00:21:52 2024 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP          |  2 +-
 libstdc++-v3/ChangeLog | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 0c922a24f40..7495d4c6422 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20240316
+20240317
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 5dc904240ee..3d50d48843b 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,27 @@
+2024-03-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/chrono_io.h (__units_suffix_misc): Remove.
+	(__units_suffix): Return a known suffix as string view, do not
+	write unknown suffixes to a buffer.
+	(__fmt_units_suffix): New function that formats the suffix using
+	std::format_to.
+	(operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
+	(__chrono_formatter::_M_Z): Correct lifetime of wstring.
+
+2024-03-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2024-03-04  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/114147
+	* include/std/tuple (tuple::tuple(allocator_arg_t, const Alloc&)):
+	Add missing overload of allocator-extended default constructor.
+	(tuple<T1,T2>::tuple(allocator_arg_t, const Alloc&)): Likewise.
+	* testsuite/20_util/tuple/cons/114147.cc: New test.
+
 2024-03-15  Jonathan Wakely  <jwakely@redhat.com>
 
 	* doc/xml/manual/status_cxx2023.xml: Close parenthesis.