Re: [boost] [local] Help for the Alternatives section

Subject: Re: [boost] [local] Help for the Alternatives section
From: Michael Caisse (boost_at_[hidden])
Date: 2011-03-27 18:20:54

On 03/27/2011 06:48 AM, Lorenzo Caminiti wrote:
> On Sat, Mar 26, 2011 at 8:05 PM, Michael Caisse
> <boost_at_[hidden]>  wrote:
>    
>> On 03/26/2011 04:46 PM, Steven Watanabe wrote:
>>      
>>> AMDG
>>>
>>> On 03/26/2011 04:27 PM, Michael Caisse wrote:
>>>        
>>>> #include<boost/phoenix/phoenix.hpp>
>>>> #include<boost/phoenix/statement.hpp>
>>>> #include<iostream>
>>>> #include<vector>
>>>> #include<algorithm>
>>>>
>>>> int main() {
>>>>   double sum = 0.0;
>>>>   int factor = 10;
>>>>
>>>>   using namespace boost::phoenix;
>>>>   using namespace boost::phoenix::placeholders;
>>>>
>>>>   std::vector<double>  v(3);
>>>>   v[0] = 1.0; v[1] = 2.0; v[2] = 3.0;
>>>>   std::for_each(v.begin(), v.end(), (
>>>>     ref(sum) += factor * _1,
>>>>     std::cout<<  "Summed: "<<  ref(sum)<<  "\n" )
>>>>   );
>>>>   return 0;
>>>> }
>>>>
>>>>          
>>     std::cout<<  val("Summed: ")<<  ref(sum)<<  "\n"
>>
>>      
> I tried this but it didn't work... why?
>    

Because you didn't try what was pasted above  (o;

I think it is great that you are putting together an Alternative section.

> #include<boost/spirit/include/qi.hpp>
> #include<boost/spirit/include/phoenix_core.hpp>
> #include<boost/spirit/include/phoenix_operator.hpp>
> #include<iostream>
> #include<vector>
> #include<algorithm>
>
> int main() {
>      double sum = 0.0;
>      int factor = 10;
>
>      std::vector<double>  v(3);
>      v[0] = 1.0; v[1] = 2.0; v[2] = 3.0;
>
>      std::for_each(v.begin(), v.end(), (
>          boost::phoenix::ref(sum) += factor * boost::spirit::qi::_1,
>          std::cout<<  boost::phoenix::val("Summed: ")<<
>                  boost::phoenix::ref(sum)<<  "\n"
>      ));
>
>      std::cout<<  sum<<  std::endl;
>      return 0;
> }
>
>    

-- 
Michael Caisse
Object Modeling Designs
www.objectmodelingdesigns.com