From 1fa2c5a695bb962ffcf8abed49f69cdcc59d0e61 Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Fri, 17 Sep 2021 12:27:02 +0100
Subject: [PATCH] libstdc++: Fix last std::tuple constructor missing
'constexpr' [PR102270]
Also rename the test so it actually runs.
Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
libstdc++-v3/ChangeLog:
PR libstdc++/102270
* include/std/tuple (_Tuple_impl): Add constexpr to constructor
missed in previous patch.
* testsuite/20_util/tuple/cons/102270.C: Moved to...
* testsuite/20_util/tuple/cons/102270.cc: ...here.
* testsuite/util/testsuite_allocator.h (SimpleAllocator): Add
constexpr to constructor so it can be used for C++20 tests.
---
libstdc++-v3/include/std/tuple | 1 +
.../testsuite/20_util/tuple/cons/{102270.C => 102270.cc} | 3 +++
libstdc++-v3/testsuite/util/testsuite_allocator.h | 2 +-
3 files changed, 5 insertions(+), 1 deletion(-)
rename libstdc++-v3/testsuite/20_util/tuple/cons/{102270.C => 102270.cc} (95%)
diff --git a/libstdc++-v3/include/std/tuple b/libstdc++-v3/include/std/tuple
index 6f0dc6346e1f..120c80a2b785 100644
--- a/libstdc++-v3/include/std/tuple
+++ b/libstdc++-v3/include/std/tuple
@@ -330,6 +330,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ }
template<typename _Alloc>
+ _GLIBCXX20_CONSTEXPR
_Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
const _Head& __head, const _Tail&... __tail)
: _Inherited(__tag, __a, __tail...),
diff --git a/libstdc++-v3/testsuite/20_util/tuple/cons/102270.C b/libstdc++-v3/testsuite/20_util/tuple/cons/102270.cc
similarity index 95%
rename from libstdc++-v3/testsuite/20_util/tuple/cons/102270.C
rename to libstdc++-v3/testsuite/20_util/tuple/cons/102270.cc
index 998329817c74..5500cacab6d6 100644
--- a/libstdc++-v3/testsuite/20_util/tuple/cons/102270.C
+++ b/libstdc++-v3/testsuite/20_util/tuple/cons/102270.cc
@@ -56,6 +56,9 @@ constexpr bool construct_using_allocator()
std::tuple<X1a, X1a, X1b, X1b> t1a1b(std::allocator_arg, a, 1, i, 1, i);
+ const int c = 0;
+ std::tuple<int, int> tii(std::allocator_arg, a, c, c);
+
return true;
}
static_assert( construct_using_allocator() );
diff --git a/libstdc++-v3/testsuite/util/testsuite_allocator.h b/libstdc++-v3/testsuite/util/testsuite_allocator.h
index 1f7912ea6eb3..b5b402858a67 100644
--- a/libstdc++-v3/testsuite/util/testsuite_allocator.h
+++ b/libstdc++-v3/testsuite/util/testsuite_allocator.h
@@ -514,7 +514,7 @@ namespace __gnu_test
{
typedef Tp value_type;
- SimpleAllocator() noexcept { }
+ constexpr SimpleAllocator() noexcept { }
template <class T>
SimpleAllocator(const SimpleAllocator<T>&) { }
--
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