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Subject: Re: [boost] [xpressive] Performance Tuning?
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-07-01 15:39:06

Eric Niebler wrote:
> Stewart, Robert wrote:
> > Dave Jenkins wrote:
> >>>> Each call to parse() is constructing the sregex variables.
> >> How about making them static const? That should be thread safe.
> You can still make the regex objects static const and use
> placeholders in the semantic actions. See the following
> section:

I forgot about that section. Thanks for the pointer.

Whoa! The performance just shot up to a mere 6X the custom code (from 175X). That might well be fast enough to keep the Xpressive version because of its readability!

Thanks Eric!

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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