CPXXparamsetaddint and CPXparamsetaddint

The routine CPXXparamsetaddint/CPXparamsetaddint adds a parameter of type CPXINT to a parameter set.

int  CPXXparamsetaddint( CPXCENVptr env, CPXPARAMSETptr ps, int whichparam, CPXINT ivalue)

int  CPXparamsetaddint( CPXCENVptr env, CPXPARAMSETptr ps, int whichparam, int ivalue)

Description

The routine CPXXparamsetaddint/CPXparamsetaddint adds a parameter of type CPXINT to a parameter set. If the parameter does not yet exist in the parameter set then it gets added with the specified value. If the parameter is already in the parameter set then its current value will be replaced by the specified value.

The CPLEX Parameters Reference Manual provides a list of parameters with their types, options, and default values.

Arguments

env
A pointer to the CPLEX environment as returned by CPXXopenCPLEX/CPXopenCPLEX.
ps
A pointer to the CPLEX parameter set as returned by CPXXparamsetcreate/CPXparamsetcreate using env as the environment.
whichparam
The symbolic constant (or reference number) of the parameter to add.
newvalue
The new value of the parameter.

Return

The routine returns 0 (zero) if successful and nonzero if an error occurs.

Example


        status = CPXparamsetaddint (env, ps, CPXPARAM_Advance, CPX_ON);

See also Parameter sets and Examples for multiobjective optimization in the CPLEX User's Manual.

Note:

The argument whichparam denotes a parameter of type CPX_PARAMTYPE_INT. For compatibility with previous versions of the product, this routine also accepts parameters of type CPX_PARAMTYPE_LONG. If the parameter denoted by whichparam is of type CPX_PARAMTYPE_LONG, then a newvalue smaller than 2100000000 is assigned to the parameter. If newvalue is instead greater than or equal to 2100000000 (meaning unlimited in size, practically equivalent to infinity) then the value 9223372036800000000 is assigned to the parameter, meaning unlimited in size, practically equivalent to infinity for parameters of type CPX_PARAMTYPE_LONG. Analogously, values smaller than -2100000000 are transformed to -9223372036800000000.