Jason Reich wrote:
Hello,
I'm using boost::program_options to parse an command line within a running program (i.e. not just at startup, whenever a new command comes in), and am trying to avoid memory deallocation/reallocation. Is there any way reuse a variable_map that has already had options stored into it?
If I use the std::map<>.clear() it seems to clear the stored values, but when I next try to parse, the results are still empty. I think this is happening because the m_final variable (as far as I can understand).
Is there some reason why the variables_map can't be cleared and reused?
Why do you think that calling clear() and using the same variables_map again will cut down on memory deallocation/reallocation? It does not seem obvious to me that it will. - Volodya