
                         const char *datatype, const char *glossary);

struct arg_xxx* arg_xxxn(const char* shortopts, const char* longopts,
                         const char *datatype,
                         int mincount, int maxcount,
                         const char *glossary);</PRE><P STYLE="margin-bottom: 0cm">
The different forms provide a convenient means for specifying command
line arguments that accept either zero-or-one, exactly-one, or many
instances on the command line. The first two for