Changes in src/helpers.hpp [7dad10:6e97e5]

File:

• src/helpers.hpp (modified) (1 diff)

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_*/