re PR libstdc++/63775 ([C++11] Regex range with leading dash (-) not working)

	PR libstdc++/63775
	* include/bits/regex_compiler.h (_Compiler<>::_M_expression_term,
	_BracketMatcher<>::_M_make_range): Throw regex_erorr on invalid range
	like [z-a]. Change _M_expression_term interface.
	* include/bits/regex_compiler.tcc (
	_Compiler<>::_M_insert_bracket_matcher,
	_Compiler<>::_M_expression_term): Rewrite bracket expression parsing.
	* testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
	Add testcases and move file out of extended.

From-SVN: r217461

1 files changed, 51 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/cstring_bracket_01.cc b/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc
index ca2a5f5..e5cffc7 100644
--- a/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/cstring_bracket_01.cc
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc
@@ -67,9 +67,60 @@ test01()
   }
 }
 
+void
+test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  try
+  {
+    std::regex re("[-----]", std::regex::extended);
+    VERIFY(false);
+  }
+  catch (const std::regex_error& e)
+  {
+    VERIFY(e.code() == std::regex_constants::error_range);
+  }
+  std::regex re("[-----]", std::regex::ECMAScript);
+}
+
+void
+test03()
+{
+  bool test __attribute__((unused)) = true;
+
+  try
+  {
+    std::regex re("[z-a]", std::regex::extended);
+    VERIFY(false);
+  }
+  catch (const std::regex_error& e)
+  {
+    VERIFY(e.code() == std::regex_constants::error_range);
+  }
+}
+
+void
+test04()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::regex re("[-0-9a-z]");
+  VERIFY(regex_match_debug("-", re));
+  VERIFY(regex_match_debug("1", re));
+  VERIFY(regex_match_debug("w", re));
+  re.assign("[-0-9a-z]", regex_constants::basic);
+  VERIFY(regex_match_debug("-", re));
+  VERIFY(regex_match_debug("1", re));
+  VERIFY(regex_match_debug("w", re));
+}
+
 int
 main()
 {
   test01();
+  test02();
+  test03();
+  test04();
   return 0;
 }