Use metaprogramming constructs from std

[libs/datafile.git] / source / collection.h

diff --git a/source/collection.h b/source/collection.h
index aa3c18a0fcc1a5e27f5d4ddc1278b58e65904877..473b58ed76329cf72d971f728d29ba0aae296760 100644 (file)
--- a/source/collection.h
+++ b/source/collection.h
@@ -1,6 +1,7 @@
 #ifndef MSP_DATAFILE_COLLECTION_H_
 #define MSP_DATAFILE_COLLECTION_H_
 
+#include <type_traits>
 #include <msp/core/attributes.h>
 #include <msp/core/maputils.h>
 #include <msp/core/noncopyable.h>
@@ -104,7 +105,7 @@ public:
                if(!item)
                        throw std::invalid_argument("Collection::add(item)");
 
-               typedef typename RemoveConst<T>::Type NCT;
+               typedef typename std::remove_cv<T>::type NCT;
                RefPtr<NCT> ptr(item);
                try
                {
@@ -122,7 +123,7 @@ public:
        template<typename T>
        T &get(const std::string &name) const
        {
-               return extract<typename RemoveConst<T>::Type>(get_item(items, name));
+               return extract<typename std::remove_cv<T>::type>(get_item(items, name));
        }
 
        /** Gets a typed object from the collection.  If the name is not found,
@@ -131,7 +132,7 @@ public:
        template<typename T>
        T &get(const std::string &name)
        {
-               typedef typename RemoveConst<T>::Type NCT;
+               typedef typename std::remove_cv<T>::type NCT;
                return extract<NCT>(get_var(name, get_type<NCT>(name)));
        }
 
@@ -142,13 +143,13 @@ public:
        T *find(const std::string &name) const
        {
                ItemMap::const_iterator i = items.find(name);
-               return (i!=items.end() ? extract<typename RemoveConst<T>::Type>(i->second) : 0);
+               return (i!=items.end() ? extract<typename std::remove_cv<T>::type>(i->second) : 0);
        }
 
        template<typename T>
        T *find(const std::string &name)
        {
-               typedef typename RemoveConst<T>::Type NCT;
+               typedef typename std::remove_cv<T>::type NCT;
                const Variant *var = find_var(name, get_type<NCT>(name));
                return (var ? &extract<NCT>(*var) : 0);
        }
@@ -187,7 +188,7 @@ public:
        std::list<std::string> get_names() const
        {
                std::list<std::string> names;
-               gather_items<typename RemoveConst<T>::Type>(0, &names, 0, false);
+               gather_items<typename std::remove_cv<T>::type>(0, &names, 0, false);
                return names;
        }
 
@@ -197,7 +198,7 @@ public:
        std::list<std::string> get_names()
        {
                std::list<std::string> names;
-               gather_items<typename RemoveConst<T>::Type>(0, &names, 0, true);
+               gather_items<typename std::remove_cv<T>::type>(0, &names, 0, true);
                return names;
        }
 
@@ -206,7 +207,7 @@ public:
        std::list<T *> get_list() const
        {
                std::vector<const Variant *> vars;
-               gather_items<typename RemoveConst<T>::Type>(&vars, 0, 0, false);
+               gather_items<typename std::remove_cv<T>::type>(&vars, 0, 0, false);
                return extract_list<T>(vars);
        }
 
@@ -215,12 +216,12 @@ public:
        template<typename T>
        std::list<T *> get_list()
        {
-               CollectionItemTypeBase *type = get_type<typename RemoveConst<T>::Type>();
+               CollectionItemTypeBase *type = get_type<typename std::remove_cv<T>::type>();
                if(type)
                        load_items_from_sources(*type);
 
                std::vector<const Variant *> vars;
-               gather_items<typename RemoveConst<T>::Type>(&vars, 0, type, true);
+               gather_items<typename std::remove_cv<T>::type>(&vars, 0, type, true);
                return extract_list<T>(vars);
        }
 
@@ -242,19 +243,19 @@ public:
        /// Checks whether a typed object exists in the collection.
        template<typename T>
        bool contains(const std::string &name) const
-       { return get_status<typename RemoveConst<T>::Type>(name)==1; }
+       { return get_status<typename std::remove_cv<T>::type>(name)==1; }
 
        /** Checks whether a typed object exists in the collection or is loadable
        from a source. */
        template<typename T>
        bool contains(const std::string &name)
-       { return get_status<typename RemoveConst<T>::Type>(name)>0; }
+       { return get_status<typename std::remove_cv<T>::type>(name)>0; }
 
        /// Returns the name of an item in the collection.
        template<typename T>
        const std::string &get_name(T *d) const
        {
-               typedef RefPtr<typename RemoveConst<T>::Type> RPNCT;
+               typedef RefPtr<typename std::remove_cv<T>::type> RPNCT;
 
                for(ItemMap::const_iterator i=items.begin(); i!=items.end(); ++i)
                        if(i->second.check_type<RPNCT>())