memory leak

[Steffen Köhler]

Hi,

I'am using Visual C++.Net 7.1 and Bison 2.1.
Now I have found out, that every call of yyparse() created a lot of 
blocks which are 28bytes long.
I'am using
   _CrtMemState s1;
   _CrtMemCheckpoint(&s1);
   yyparse();
   _CrtMemDumpAllObjectsSince(&s1);
to detect this memory leak.

Is the an function to clear the memory allocated by bison? What can I 
do, or it is a bug?

Thanks for any help
Steffen