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authorJonathan Wakely <jwakely@redhat.com>2023-01-04 20:49:59 +0000
committerJonathan Wakely <jwakely@redhat.com>2023-01-05 00:46:00 +0000
commit56be1970765b6302de19977790a537d6feaaa34b (patch)
treeac32016065ce2b61aa5f6e773a6a0b97323ae6ad
parentb1ad748754401613b5cf8e5d46b38ad1ee49d07a (diff)
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libstdc++: Support single components in name of chrono::current_zone() [PR108211]
We currently only handle the case where /etc/localtime is a symlink to a path like ".../Etc/UTC" and fail for ".../UTC". This makes both work. libstdc++-v3/ChangeLog: PR libstdc++/108211 * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone using only last component of the name.
-rw-r--r--libstdc++-v3/src/c++20/tzdb.cc7
1 files changed, 5 insertions, 2 deletions
diff --git a/libstdc++-v3/src/c++20/tzdb.cc b/libstdc++-v3/src/c++20/tzdb.cc
index 6772517..9103b15 100644
--- a/libstdc++-v3/src/c++20/tzdb.cc
+++ b/libstdc++-v3/src/c++20/tzdb.cc
@@ -1501,8 +1501,11 @@ namespace std::chrono
if (std::distance(first, last) > 2)
{
--last;
- string name = std::prev(last)->string() + '/';
- name += last->string();
+ string name = last->string();
+ if (auto tz = do_locate_zone(this->zones, this->links, name))
+ return tz;
+ --last;
+ name = last->string() + '/' + name;
if (auto tz = do_locate_zone(this->zones, this->links, name))
return tz;
}