Implement LWG 2193. Default constructors for standard library containers are explicit. Note that libc++ already did this for string/deque/forward_list/list/vector and the unordered containers; implement it for set/multiset/map/multimap. Add tests for all the containers. Two drive-by fixes as well: add a missing explicit in <deque>, and remove a tab that snuck into a container test. This issue is also LLVM bug 15724, and resolves it.

llvm-svn: 202994

1 files changed, 5 insertions, 0 deletions

diff --git a/libcxx/test/containers/associative/multiset/multiset.cons/default.pass.cpp b/libcxx/test/containers/associative/multiset/multiset.cons/default.pass.cpp
index b6176c92d2a..5bb0312f012 100644
--- a/libcxx/test/containers/associative/multiset/multiset.cons/default.pass.cpp
+++ b/libcxx/test/containers/associative/multiset/multiset.cons/default.pass.cpp
@@ -31,5 +31,10 @@ int main()
     assert(m.empty());
     assert(m.begin() == m.end());
     }
+    {
+    std::multiset<int> m = {};
+    assert(m.empty());
+    assert(m.begin() == m.end());
+    }
 #endif
 }