Changeset 2456:717a5134ddeb in lemon-0.x for lemon/smart_graph.h

Timestamp:

06/15/07 16:32:48 (17 years ago)

Author:

Balazs Dezso

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@3293

Message:

Space reservation for SmartGraph?

Doc improvments

File:

• lemon/smart_graph.h (modified) (1 diff)

lemon/smart_graph.h

@@ -243 +243 @@
       return Parent::addEdge(s, t); 
     }
+
+    /// \brief Using this it is possible to avoid the superfluous memory
+    /// allocation.
+
+    /// Using this it is possible to avoid the superfluous memory
+    /// allocation: if you know that the graph you want to build will
+    /// be very large (e.g. it will contain millions of nodes and/or edges)
+    /// then it is worth reserving space for this amount before starting
+    /// to build the graph.
+    /// \sa reserveEdge
+    void reserveNode(int n) { nodes.reserve(n); };
+
+    /// \brief Using this it is possible to avoid the superfluous memory
+    /// allocation.
+
+    /// Using this it is possible to avoid the superfluous memory
+    /// allocation: if you know that the graph you want to build will
+    /// be very large (e.g. it will contain millions of nodes and/or edges)
+    /// then it is worth reserving space for this amount before starting
+    /// to build the graph.
+    /// \sa reserveNode
+    void reserveEdge(int m) { edges.reserve(m); };
 
     ///Clear the graph.