Changes in lemon/path.h [144:4e626dbbe408:100:4f754b4cf82b] in lemon

File:

• lemon/path.h (modified) (5 diffs)

lemon/path.h

@@ -904 +904 @@
 
     template <typename Path, typename Enable = void>
-    struct RevPathTagIndicator {
+    struct RevTagIndicator {
       static const bool value = false;
     };
 
-    template <typename Path>
-    struct RevPathTagIndicator<
-      Path, 
-      typename enable_if<typename Path::RevPathTag, void>::type
-      > {
-      static const bool value = true;
-    };
-
-    template <typename Path, typename Enable = void>
-    struct BuildTagIndicator {
-      static const bool value = false;
-    };
-
-    template <typename Path>
-    struct BuildTagIndicator<
-      Path, 
-      typename enable_if<typename Path::BuildTag, void>::type
+    template <typename Digraph>
+    struct RevTagIndicator<
+      Digraph, 
+      typename enable_if<typename Digraph::RevTag, void>::type
     > {
       static const bool value = true;
@@ -930 +917 @@
 
     template <typename Target, typename Source,
-              bool buildEnable = BuildTagIndicator<Target>::value, 
-              bool revEnable = RevPathTagIndicator<Source>::value>
+              typename BuildEnable = void, typename RevEnable = void>
     struct PathCopySelector {
       static void copy(Target& target, const Source& source) {
@@ -941 +927 @@
     };
 
-    template <typename Target, typename Source>
-    struct PathCopySelector<Target, Source, false, true> {
+    template <typename Target, typename Source, typename BuildEnable>
+    struct PathCopySelector<
+      Target, Source, BuildEnable, 
+      typename enable_if<typename Source::RevPathTag, void>::type> {
       static void copy(Target& target, const Source& source) {
         target.clear();
@@ -951 +939 @@
     };
 
-    template <typename Target, typename Source>
-    struct PathCopySelector<Target, Source, true, false> {
+    template <typename Target, typename Source, typename RevEnable>
+    struct PathCopySelector<
+      Target, Source, 
+      typename enable_if<typename Target::BuildTag, void>::type, RevEnable> {
       static void copy(Target& target, const Source& source) {
         target.clear();
@@ -960 +950 @@
 
     template <typename Target, typename Source>
-    struct PathCopySelector<Target, Source, true, true> {
+    struct PathCopySelector<
+      Target, Source, 
+      typename enable_if<typename Target::BuildTag, void>::type,
+      typename enable_if<typename Source::RevPathTag, void>::type> {
       static void copy(Target& target, const Source& source) {
         target.clear();