[Csp-commits] svn:csp r1180 - in trunk/CSP/SimData: . Include/SimData

[<sv...@ww...>]

Author: mkrose
Date: 2004-07-25 11:50:43 -0700 (Sun, 25 Jul 2004)
New Revision: 1180

Modified:
   trunk/CSP/SimData/CHANGES.current
   trunk/CSP/SimData/Include/SimData/TaggedRecord.h
Log:
Add a fast typecast operator to TaggedRecord, which checks record
ids and performs a static cast if the ids match.  This is much
faster (and just as safe) as using implicit dynamic_casts via
Ref assignments.

Browse at: https://www.zerobar.net/viewcvs/viewcvs.cgi?view=rev&rev=1180

Modified: trunk/CSP/SimData/CHANGES.current
===================================================================
--- trunk/CSP/SimData/CHANGES.current	2004-07-25 03:01:25 UTC (rev 1179)
+++ trunk/CSP/SimData/CHANGES.current	2004-07-25 18:50:43 UTC (rev 1180)
@@ -1,5 +1,11 @@
 Version 0.4.0 (in progress)
 ===========================
+2004-07-25: onsight
+  * Add a fast typecast operator to TaggedRecord, which checks record
+    ids and performs a static cast if the ids match.  This is much
+    faster (and just as safe) as using implicit dynamic_casts via
+    Ref assignments.
+
 2004-07-21: onsight
   * Add missing include.
 

Modified: trunk/CSP/SimData/Include/SimData/TaggedRecord.h
===================================================================
--- trunk/CSP/SimData/Include/SimData/TaggedRecord.h	2004-07-25 03:01:25 UTC (rev 1179)
+++ trunk/CSP/SimData/Include/SimData/TaggedRecord.h	2004-07-25 18:50:43 UTC (rev 1180)
@@ -444,6 +444,10 @@
 	virtual std::string getName() const=0;
 	virtual void dump(std::ostream &, int indent=0) const=0;
 	virtual int getCustomId() const=0;
+	template <class TR>
+	static inline Ref<TR> FastCast(Ref const &record) {
+		return (record->getId() == TR::_getId() ? static_cast<TR*>(record.get()) : 0);
+	}
 protected:
 	virtual ~TaggedRecord() {}
 };