| Overview | Group | Index | Concepts | 
The routine CPXNETgetarcindex returns the index of the
 specified arc (in the network stored in a network problem object) in the
 integer pointed to by index_p.
Example
status = CPXNETgetarcindex (env, net, "from_a_to_b", &index);
| env | A pointer to the CPLEX environment as returned by   | 
| net | A pointer to a CPLEX network problem object as returned by   | 
| lname_str | Name of the arc to look for.  | 
| index_p | A pointer to an integer to hold the arc index. If the routine is successful,   |