Proto for Boost mailing list page: [proto] problems with proto::matches

Subject: [proto] problems with proto::matches
From: Thomas Heller (thom.heller_at_[hidden])
Date: 2012-12-13 07:51:35

Hi,

I recently discovered a behavior which i find quite odd:
proto::matches<Expression, Grammar>::type fails when Expression is not a 
proto expression. I would have expected that it just returns false in 
this case. What am I missing. Patch is attached for what i think would 
be a better behavior of that meta function.

Regards,

Thomas