Move stl_util and (forgotten again) modinfo.txt to utils module

1 files changed, 84 insertions, 0 deletions

diff --git a/src/utils/stl_util.h b/src/utils/stl_util.h
new file mode 100644
index 000000000..95a19581f
--- /dev/null
+++ b/src/utils/stl_util.h
@@ -0,0 +1,84 @@
+/*************************************************
+* STL Utility Functions Header File              *
+* (C) 1999-2007 Jack Lloyd                       *
+*************************************************/
+
+#ifndef BOTAN_STL_UTIL_H__
+#define BOTAN_STL_UTIL_H__
+
+#include <map>
+
+namespace Botan {
+
+/*************************************************
+* Copy-on-Predicate Algorithm                    *
+*************************************************/
+template<typename InputIterator, typename OutputIterator, typename Predicate>
+OutputIterator copy_if(InputIterator current, InputIterator end,
+                       OutputIterator dest, Predicate copy_p)
+   {
+   while(current != end)
+      {
+      if(copy_p(*current))
+         *dest++ = *current;
+      ++current;
+      }
+   return dest;
+   }
+
+/*************************************************
+* Searching through a std::map                   *
+*************************************************/
+template<typename K, typename V>
+inline V search_map(const std::map<K, V>& mapping,
+                    const K& key,
+                    const V& null_result = V())
+   {
+   typename std::map<K, V>::const_iterator i = mapping.find(key);
+   if(i == mapping.end())
+      return null_result;
+   return i->second;
+   }
+
+template<typename K, typename V, typename R>
+inline R search_map(const std::map<K, V>& mapping, const K& key,
+                    const R& null_result, const R& found_result)
+   {
+   typename std::map<K, V>::const_iterator i = mapping.find(key);
+   if(i == mapping.end())
+      return null_result;
+   return found_result;
+   }
+
+/*************************************************
+* Function adaptor for delete operation          *
+*************************************************/
+template<class T>
+class del_fun : public std::unary_function<T, void>
+   {
+   public:
+      void operator()(T* ptr) { delete ptr; }
+   };
+
+/*************************************************
+* Delete the second half of a pair of objects    *
+*************************************************/
+template<typename Pair>
+void delete2nd(Pair& pair)
+   {
+   delete pair.second;
+   }
+
+/*************************************************
+* Insert a key/value pair into a multimap        *
+*************************************************/
+template<typename K, typename V>
+void multimap_insert(std::multimap<K, V>& multimap,
+                     const K& key, const V& value)
+   {
+   multimap.insert(std::make_pair(key, value));
+   }
+
+}
+
+#endif