Re: [Boost-bugs] [Boost C++ Libraries] #7828: use BOOST_FOREACH push_back some thing into vector, the first value is blank.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7828: use BOOST_FOREACH push_back some thing into vector, the first value is blank.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-02-18 00:30:41

#7828: use BOOST_FOREACH push_back some thing into vector,the first value is
blank.
-----------------------------------+----------------------------------------
  Reporter:  yuanzhan@…            |       Owner:  eric_niebler 
      Type:  Bugs                  |      Status:  closed       
 Milestone:  To Be Determined      |   Component:  foreach      
   Version:  Boost 1.50.0          |    Severity:  Problem      
Resolution:  worksforme            |    Keywords:  BOOST_FOREACH
-----------------------------------+----------------------------------------
Changes (by eric_niebler):

  * status:  new => closed
  * resolution:  => worksforme

Comment:

 I tested the following code against Boost trunk:

 {{{
 #include <iostream>
 #include <vector>
 #include <string>
 #include <boost/property_tree/ptree.hpp>
 #include <boost/property_tree/xml_parser.hpp>
 #include <boost/foreach.hpp>

 int main()
 {
     std::vector<std::string> ClientSet;
     boost::property_tree::ptree pt;
     try
     {
         boost::property_tree::read_xml("C:\\axml.xml",pt);
         BOOST_FOREACH(
             boost::property_tree::ptree::value_type &v,
             pt.get_child("client_set"))
         {
             ClientSet.push_back(v.second.data());
         }
         std::cout << "client_set size = " << ClientSet.size() <<
 std::endl;
         std::cout << "client_set[0] = " << ClientSet[0] << std::endl;
         std::cout << "client_set[1] = " << ClientSet[1] << std::endl;
         std::cout << "client_set[2] = " << ClientSet[2] << std::endl;
    }
    catch(std::exception & e)
    { }
 }
 }}}

 I used a data file `C:\axml.xml` that contains this:

 {{{
 <?xml version="1.0" encoding="UTF-8"?>
 <client_set>
   <client>00801038</client>
   <client>00802980</client>
   <client>01600817</client>
 </client_set>
 }}}

 I get this:

 {{{
 client_set size = 3
 client_set[0] = 00801038
 client_set[1] = 00802980
 client_set[2] = 01600817
 }}}

 Looks ok to me.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7828#comment:6>
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