| Overview | Group | Index | Concepts | 
The routine CPXchgrngval is used to change the range
 coefficients of a set of linear constraints in the CPLEX problem object.
Example
status = CPXchgrngval (env, lp, cnt, indices, values);
| env | A pointer to the CPLEX environment as returned by   | 
| lp | A pointer to a CPLEX problem object as returned by   | 
| cnt | An integer that indicates the total number of range coefficients to be changed, and thus specifies the length of the arrays   | 
| indices | An array of length   | 
| values | An array of length   |