Function SCIPlpiGetColNames 

pub unsafe extern "C" fn SCIPlpiGetColNames(
    lpi: *mut SCIP_LPI,
    firstcol: c_int,
    lastcol: c_int,
    colnames: *mut *mut c_char,
    namestorage: *mut c_char,
    namestoragesize: c_int,
    storageleft: *mut c_int,
) -> SCIP_RETCODE

gets column names