[Boost-bugs] [Boost C++ Libraries] #7777: at() member function required for program_options::variables_map

Subject: [Boost-bugs] [Boost C++ Libraries] #7777: at() member function required for program_options::variables_map
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-12-09 18:36:39

#7777: at() member function required for program_options::variables_map
--------------------------------------------------+-------------------------
 Reporter:  Nana Sakisaka <n.sakisaka@…>          |       Owner:  vladimir_prus  
     Type:  Feature Requests                      |      Status:  new            
Milestone:  To Be Determined                      |   Component:  program_options
  Version:  Boost 1.52.0                          |    Severity:  Problem        
 Keywords:  variables_map                         |  
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 variables_map provides operator[] which sets an empty value to the option,
 if the specified key does not exist.[[BR]]
 I think it would be nice and more robust to also provide an overrided
 member function at() which throws an exception for such circumstances.

 Related ticket: #7495. If implementing #7495, it will be also required to
 handle boost::optional values for at().

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/7777>
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