Documentation


GRBModel::set()

Set the value(s) of a parameter or attribute. Use this method for parameters, for scalar model attributes, and for arrays of constraint or variable attributes.

void set ( GRB_DoubleParam param,
    double newvalue )
    Set the value of a double-valued parameter.

    The difference between setting a parameter on a model and setting it on an environment (i.e., through GRBEnv::set) is that the former modifies the parameter for a single model, while the latter modifies the parameter for every model that is subsequently built using that environment (and leaves the parameter unchanged for models that were previously built using that environment).

    Arguments:

    param: The parameter being modified.

    newvalue: The desired new value for the parameter.

void set ( GRB_IntParam param,
    int newvalue )
    Set the value of an int-valued parameter.

    The difference between setting a parameter on a model and setting it on an environment (i.e., through GRBEnv::set) is that the former modifies the parameter for a single model, while the latter modifies the parameter for every model that is subsequently built using that environment (and leaves the parameter unchanged for models that were previously built using that environment).

    Arguments:

    param: The parameter being modified.

    newvalue: The desired new value for the parameter.

void set ( GRB_StringParam param,
    string newvalue )
    Set the value of a string-valued parameter.

    The difference between setting a parameter on a model and setting it on an environment (i.e., through GRBEnv::set) is that the former modifies the parameter for a single model, while the latter modifies the parameter for every model that is subsequently built using that environment (and leaves the parameter unchanged for models that were previously built using that environment).

    Arguments:

    param: The parameter being modified.

    newvalue: The desired new value for the parameter.

void set ( GRB_CharAttr attr,
    const GRBVar* vars,
    char* newvalues,
    int count )
    Set a char-valued variable attribute for an array of variables.

    Arguments:

    attr: The attribute being modified.

    vars: An array of variables whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input variable.

    count: The number of variable attributes to set.

void set ( GRB_CharAttr attr,
    const GRBConstr* constrs,
    char* newvalues,
    int count )
    Set a char-valued constraint attribute for an array of constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input constraint.

    count: The number of constraint attributes to set.

void set ( GRB_CharAttr attr,
    const GRBQConstr* qconstrs,
    char* newvalues,
    int count )
    Set a char-valued quadratic constraint attribute for an array of quadratic constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of quadratic constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input quadratic constraint.

    count: The number of quadratic constraint attributes to set.

void set ( GRB_DoubleAttr attr,
    double newvalue )
    Set the value of a double-valued model attribute.

    Arguments:

    attr: The attribute being modified.

    newvalue: The desired new value for the attribute.

void set ( GRB_DoubleAttr attr,
    const GRBVar* vars,
    double* newvalues,
    int count )
    Set a double-valued variable attribute for an array of variables.

    Arguments:

    attr: The attribute being modified.

    vars: An array of variables whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input variable.

    count: The number of variable attributes to set.

void set ( GRB_DoubleAttr attr,
    const GRBConstr* constrs,
    double* newvalues,
    int count )
    Set a double-valued constraint attribute for an array of constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input constraint.

    count: The number of constraint attributes to set.

void set ( GRB_DoubleAttr attr,
    const GRBQConstr* qconstrs,
    double* newvalues,
    int count )
    Set a double-valued quadratic constraint attribute for an array of quadratic constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of quadratic constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input quadratic constraint.

    count: The number of quadratic constraint attributes to set.

void set ( GRB_IntAttr attr,
    int newvalue )
    Set the value of an int-valued model attribute.

    Arguments:

    attr: The attribute being modified.

    newvalue: The desired new value for the attribute.

void set ( GRB_IntAttr attr,
    const GRBVar* vars,
    int* newvalues,
    int count )
    Set an int-valued variable attribute for an array of variables.

    Arguments:

    attr: The attribute being modified.

    vars: An array of variables whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input variable.

    count: The number of variable attributes to set.

void set ( GRB_IntAttr attr,
    const GRBConstr* constrs,
    int* newvalues,
    int count )
    Set an int-valued constraint attribute for an array of constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input constraint.

    count: The number of constraint attributes to set.

void set ( GRB_StringAttr attr,
    string newvalue )
    Set the value of a string-valued model attribute.

    Arguments:

    attr: The attribute being modified.

    newvalue: The desired new value for the attribute.

void set ( GRB_StringAttr attr,
    const GRBVar* vars,
    string* newvalues,
    int count )
    Set a string-valued variable attribute for an array of variables.

    Arguments:

    attr: The attribute being modified.

    vars: An array of variables whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input variable.

    count: The number of variable attributes to set.

void set ( GRB_StringAttr attr,
    const GRBConstr* constrs,
    string* newvalues,
    int count )
    Set a string-valued constraint attribute for an array of constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input constraint.

    count: The number of constraint attributes to set.

void set ( GRB_StringAttr attr,
    const GRBQConstr* qconstrs,
    string* newvalues,
    int count )
    Set a string-valued quadratic constraint attribute for an array of quadratic constraints.

    Arguments:

    attr: The attribute being modified.

    constrs: An array of quadratic constraints whose attribute values are being modified.

    newvalues: The desired new values for the attribute for each input quadratic constraint.

    count: The number of quadratic constraint attributes to set.