/// \p mask must be in filesystem encoding, if it contains a
/// relative path, the template file will be created in the global
/// temporary directory as given by 'package().temp_dir()'.
- static FileName tempName(std::string const & mask = empty_string());
+ static FileName tempName(std::string const & mask);
static FileName tempName(FileName const & temp_dir,
std::string const & mask);