Changeset 5738177 for molecuilder/src/helpers.hpp

Timestamp:

Mar 17, 2010, 3:19:56 PM (16 years ago)

Author:

Tillmann Crueger <crueger@…>

Children:

43ed42

Parents:

d639c7

git-author:

Tillmann Crueger <crueger@…> (03/17/10 14:53:26)

git-committer:

Tillmann Crueger <crueger@…> (03/17/10 15:19:56)

Message:

Added a generic Iterator that can be used to iterate only over certain parts of an internal data structure

File:

• molecuilder/src/helpers.hpp (modified) (1 diff)

molecuilder/src/helpers.hpp

@@ -189 +189 @@
 #define PLURAL_S(v) (((v)==1)?"":"s")
 
+// this is to allow different modes of access for
+// maps and sets
+template<typename Res,typename T>
+struct _take{
+  Res get(T value) const;
+};
+
+// if we have a set,vector etc we can directly access the result
+template<typename Res>
+struct _take<Res,Res>{
+  static inline Res get(Res value){
+    return value;
+  }
+};
+
+// if we have a map we have to access the second part of
+// the pair
+template<typename Res,typename T1>
+struct _take<Res,std::pair<T1,Res> >{
+  static inline Res get(std::pair<T1,Res> value){
+    return value.second;
+  }
+};
+
 #endif /*HELPERS_HPP_*/