Function Highs_changeColIntegrality 

pub unsafe extern "C" fn Highs_changeColIntegrality(
    highs: *mut c_void,
    col: HighsInt,
    integrality: HighsInt,
) -> HighsInt

Change the integrality of a column.

@param highs A pointer to the Highs instance. @param col The column index to change. @param integrality The new integrality of the column in the form of a kHighsVarType constant.

@returns A kHighsStatus constant indicating whether the call succeeded.