Proto for Boost mailing list page: Re: [proto] Funky exercie: subset of Boost::parameters using proto

Subject: Re: [proto] Funky exercie: subset of Boost::parameters using proto
From: Daniel Oberhoff (daniel.oberhoff_at_[hidden])
Date: 2010-08-16 17:33:00

make that semi-automatic, i.e. i would love to have a lib that lets you control the dispatch, or rather give it hints.

Am 16.08.2010 um 23:30 schrieb Daniel Oberhoff:

> :)
> 
> been following this. I wonder if you guys shouldn't start talking to compiler creators, specifically modern open source ones such as the clang folks, about optimizing compile times and erro messages of proto-style code. on the side of error messages i was wondering if it would be possible to teach the compiler specific error messages such as are possible in perocompiler land with the error macro. I myself had started working on a numeric library like blitz for kicks a few months ago, using proto, and was suprised that it actually worked :). I am still dreaming of a numeric library with a blitz like interface that dispatches automatically (with both static and dynamic dispatch as appropriate) to serial, sse, openmp-style, and cuda code.
> 
> dan
> 
> Am 16.08.2010 um 23:20 schrieb Eric Niebler:
> 
>> On 8/16/2010 4:54 PM, joel falcou wrote:
>>> Got some error trying to compile this vs boost :: trunk
>>> 
>>> joel_at_dell-desktop:~/Desktop$ time g++-4.3 -O3 -c options.cpp -I./
>>> -I/usr/local/include/boost-trunk
>>> options.cpp: In member function ‘typename
>>> boost::option_expr<Expr>::result<const boost::option_expr<Expr>
>>> ()(Option, Default)>::type boost::option_expr<Expr>::operator()(const
>>> Option&, const Default&) const’:
>>> options.cpp:103: error: wrong number of template arguments (3, should be 2)
>> 
>> For those following along at home, there's a stray comma on line 103.
>> Delete it and all it fine.
>> 
>> -- 
>> Eric Niebler
>> BoostPro Computing
>> http://www.boostpro.com
>> _______________________________________________
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>> proto_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/proto
> 
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