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boost::program_options::abstract_variables_map
// In header: <boost/program_options/variables_map.hpp> class abstract_variables_map { public: // construct/copy/destruct (); (); ~(); // public member functions variable_value & () ; (); // private member functions variable_value & () ; };
Implements string->string mapping with convenient value casting facilities.
abstract_variables_map public member functionsvariable_value & ( name) ;
Obtains the value of variable 'name', from *this and possibly from the chain of variable maps.
if there's no value in *this.
if there's next variable map, returns value from it
otherwise, returns empty value
if there's defaulted value
if there's next variable map, which has a non-defaulted value, return that
otherwise, return value from *this
if there's a non-defaulted value, returns it.
( next);
Sets next variable map, which will be used to find variables not found in *this.
abstract_variables_map private member functionsvariable_value & ( name) ;
Returns value of variable 'name' stored in *this, or empty value otherwise.