[antlr-interest] C++ is slower than Java?

[keren_jefet]

Hi,

I have tested the java.g example both on Java-generated parser, and 
on Cpp-generated parser (antlr-2.7.1, buildAST=true).  
Surprisingly, I found out that the Java parser, was significantly 
faster than the Cpp one, especially when handling long java source 
files. (sometimes even 600% faster...)

How can that be? 
Is this related to the specific java.g grammar definitions, or maybe 
it is true for all parsers, no matter of the grammar complexity?

Thanks,
keren.



 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/