Here is a list of all documented namespace members with links to the namespaces they belong to:

begin() : optionpp
end() : optionpp
is_space() : optionpp::utility
is_substr_at_pos() : optionpp::utility
non_option_const_iterator : optionpp
non_option_iterator : optionpp
operator<<() : optionpp
option_const_iterator : optionpp
option_iterator : optionpp
split() : optionpp::utility
wrap_line() : optionpp::utility
wrap_text() : optionpp::utility