On Tue, May 9, 2017 at 9:46 AM, Jason Merrill <ja...@redhat.com> wrote:
> The issue here was that we've been trying to treat C++
> list-initialized temporaries (which are rvalues) the same as C99
> compound literals (which are lvalues). This patch distinguishes
> between them so we can treat them each correctly.
This introduced a failure in the libstdc++ testsuite, which was
incorrectly relying on the temporary array backing a
std::initializer_list being static even if the std::initializer_list
is not; in fact they should have the same storage duration. Fixing
thus.
commit 0e75edc1775f5afbb3113d840ebb500d091a7003
Author: Jason Merrill <ja...@redhat.com>
Date: Tue May 9 11:06:09 2017 -0400
* testsuite/24_iterators/container_access.cc (test03): Make il3 static.
diff --git a/libstdc++-v3/testsuite/24_iterators/container_access.cc
b/libstdc++-v3/testsuite/24_iterators/container_access.cc
index 42ecb41..7f60d2b 100644
--- a/libstdc++-v3/testsuite/24_iterators/container_access.cc
+++ b/libstdc++-v3/testsuite/24_iterators/container_access.cc
@@ -55,7 +55,7 @@ test03()
std::initializer_list<int> il2{};
VERIFY(std::size(il2) == 0);
VERIFY(std::empty(il2));
- constexpr std::initializer_list<int> il3{1,2,3};
+ static constexpr std::initializer_list<int> il3{1,2,3};
constexpr auto d = std::data(il3);
static_assert(d == il3.begin());
constexpr auto s = std::size(il3);
