string const browseFile(LyXView *lv, string const & filename,
string const & title,
string const & pattern,
- std::pair<string,string> const & dir1,
- std::pair<string,string> const & dir2);
+ std::pair<string,string> const & dir1 = std::make_pair(string(), string()),
+ std::pair<string,string> const & dir2 = std::make_pair(string(), string()));
/// Returns a vector of units that can be used to create a valid LaTeX length.