On Sun, Jul 19, 2009 at 2:29 AM, John Bytheway<jbytheway+boost@gmail.com> wrote:
OvermindDL1 wrote:
I just changed the file to use spirit for parsing where I had used lexical_cast got very different timings for xpressive now, so now, with xpressive using a bit of spirit I get: Loop count: 10000000 Parsing: 42.5 xpressive: 15.4841 spirit-quick(static): 3.01117 spirit-quick_new(threadsafe): 3.10548 spirit-grammar(threadsafe/reusable): 3.81694
Vast increase, 3x faster xpressive is now. Also, how do you fix that rather bloody massive warning about double->int64 truncation? I also changed all int64_t to boost::long_long_type since they are the same thing anyway (on 32-bit at least?), as well as it being multi-platform unlike int64_t. My changed file is attached. Do not know if this is considered cheating now that xpressive is using some spirit now. ;-)
That one doesn't compile for me. On line 402:
boost::spirit::qi::parse(va.begin(), va.end(), boost::spirit::double_[boost::phoenix::ref(value)]);
I get
no instance of overloaded function "boost::spirit::qi::parse" matches the argument list
(and the same on all the similar lines)
and indeed I see can't see an appropriate overload in the spirit headers (in boost trunk), but it's hard to be sure since there are so many functions called parse!
You are running Boost Trunk? Compiles fine here in MSVC, and I last synced to trunk less then a week ago.