1 files changed, 34 insertions, 0 deletions
diff --git a/test/std/re/re.regex/re.regex.construct/ptr.pass.cpp b/test/std/re/re.regex/re.regex.construct/ptr.pass.cpp
new file mode 100644
index 0000000000000..b99b58b469cf4
--- /dev/null
+++ b/test/std/re/re.regex/re.regex.construct/ptr.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <regex>
+
+// template <class charT, class traits = regex_traits<charT>> class basic_regex;
+
+// basic_regex(const charT* p);
+
+#include <regex>
+#include <cassert>
+
+template <class CharT>
+void
+test(const CharT* p, unsigned mc)
+{
+    std::basic_regex<CharT> r(p);
+    assert(r.flags() == std::regex_constants::ECMAScript);
+    assert(r.mark_count() == mc);
+}
+
+int main()
+{
+    test("\\(a\\)", 0);
+    test("\\(a[bc]\\)", 0);
+    test("\\(a\\([bc]\\)\\)", 0);
+    test("(a([bc]))", 2);
+}