1 files changed, 73 insertions, 0 deletions
diff --git a/src/boost/libs/regex/performance/std.cpp b/src/boost/libs/regex/performance/std.cpp
new file mode 100644
index 000000000..9294acefb
--- /dev/null
+++ b/src/boost/libs/regex/performance/std.cpp
@@ -0,0 +1,73 @@
+///////////////////////////////////////////////////////////////
+//  Copyright 2015 John Maddock. Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
+//
+
+#include <boost/config.hpp>
+
+#ifndef BOOST_NO_CXX11_HDR_REGEX
+
+#include "performance.hpp"
+#include <regex>
+
+struct std_regex : public abstract_regex
+{
+private:
+   std::regex e;
+   std::cmatch what;
+public:
+   virtual bool set_expression(const char* pe, bool isperl)
+   {
+      try
+      {
+         e.assign(pe, isperl ? std::regex::ECMAScript : std::regex::extended);
+      }
+      catch(const std::exception&)
+      {
+         return false;
+      }
+      return true;
+   }
+   virtual bool match_test(const char* text);
+   virtual unsigned find_all(const char* text);
+   virtual std::string name();
+
+   struct initializer
+   {
+      initializer()
+      {
+         std_regex::register_instance(boost::shared_ptr<abstract_regex>(new std_regex));
+      }
+      void do_nothing()const {}
+   };
+   static const initializer init;
+};
+
+const std_regex::initializer std_regex::init;
+
+
+bool std_regex::match_test(const char * text)
+{
+   return regex_match(text, what, e);
+}
+
+unsigned std_regex::find_all(const char * text)
+{
+   std::regex_iterator<const char*> i(text, text + std::strlen(text), e), j;
+   unsigned count = 0;
+   while(i != j)
+   {
+      ++i;
+      ++count;
+   }
+   return count;
+}
+
+std::string std_regex::name()
+{
+   init.do_nothing();
+   return "std::regex";
+}
+
+#endif