PR libstdc++/64649

	* include/bits/regex.tcc (regex_traits<>::lookup_collatename,
	regex_traits<>::lookup_classname): Support forward iterators.
	* testsuite/28_regex/traits/char/lookup_classname.cc: New testcases.
	* testsuite/28_regex/traits/char/lookup_collatename.cc: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219866 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/28_regex/traits/char/lookup_collatename.cc b/libstdc++-v3/testsuite/28_regex/traits/char/lookup_collatename.cc
index 56d0576140e..fac4a240a9b 100644
--- a/libstdc++-v3/testsuite/28_regex/traits/char/lookup_collatename.cc
+++ b/libstdc++-v3/testsuite/28_regex/traits/char/lookup_collatename.cc
@@ -26,6 +26,7 @@
 // 28.7 (8) Class template regex_traits [re.traits]
 
 #include <regex>
+#include <forward_list>
 #include <testsuite_hooks.h>
 
 void
@@ -40,8 +41,19 @@ test01()
   VERIFY(t.lookup_collatename(name, name+sizeof(name)-1) == "~");
 }
 
+// Test forward iterator.
+void
+test02()
+{
+  const char strlit[] = "tilde";
+  std::forward_list<char> s(strlit, strlit + strlen(strlit));
+  std::regex_traits<char> traits;
+  VERIFY(traits.lookup_collatename(s.begin(), s.end()) == "~");
+}
+
 int main()
 {
 	test01();
+	test02();
 	return 0;
 }