Function reset

include/win/boost/optional/optional.hpp:460–460

DEPPRECATED** Replaces the current value -if any- with 'val'

    // **DEPPRECATED** Replaces the current value -if any- with 'val'
    void reset ( argument_type val ) { assign(val); }

    // Returns a pointer to the value if this is initialized, otherwise,
    // returns NULL.