On 11/23/2009 01:07 PM, Robert Grimm wrote: > Jon, > > if C++ memory management overheads are what really bogs down your parsers, > you might want to take a page out of Scott McPeak's playbook: > > His Elkhound-generated C++ parsers do not free memory nor do they integrate > GC. Instead, you just allocate from a dedicated region, copy out the AST > after parsing, and kill the entire region in one operation. > > Maybe that might help. Then again I like Rats!-generated parsers to be faster > :) > > Yes, I thought of that as well. Last time I checked I could not find a way to override 'new' for a single file/module. Either its globally defined or its defined for a single class. I could override new for all my AST structures but I used std::string a few times which I have no control over. But if I got rid of std::string then it may be possible.
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