Low level interface function to the IBM ILOG CPLEX function
CPXopenCPLEX. Consult the IBM ILOG CPLEX documentation for
more detailed information.
openEnvCPLEX(ptrtype = "cplex_env")A name for the pointer object.
If successful, a pointer to the CPLEX environment is returnd
(an instance of class "'>cplexPtr"), otherwise an
instance of class "'>cplexError".
Interface to the C function openEnv which calls the CPLEX
function CPXopenCPLEX.
The IBM ILOG CPLEX home page at https://www.ibm.com/support/knowledgecenter/SSSA5P.