Function SCIPpowerExprSum 

pub unsafe extern "C" fn SCIPpowerExprSum(
    scip: *mut SCIP,
    result: *mut *mut SCIP_EXPR,
    base: *mut SCIP_EXPR,
    exponent: c_int,
    simplify: c_uint,
    ownercreate: Option<unsafe extern "C" fn(scip: *mut SCIP, expr: *mut SCIP_EXPR, ownerdata: *mut *mut SCIP_EXPR_OWNERDATA, ownerfree: *mut Option<unsafe extern "C" fn(scip: *mut SCIP, expr: *mut SCIP_EXPR, ownerdata: *mut *mut SCIP_EXPR_OWNERDATA) -> SCIP_RETCODE>, ownerprint: *mut Option<unsafe extern "C" fn(scip: *mut SCIP, file: *mut FILE, expr: *mut SCIP_EXPR, ownerdata: *mut SCIP_EXPR_OWNERDATA) -> SCIP_RETCODE>, ownerevalactivity: *mut Option<unsafe extern "C" fn(scip: *mut SCIP, expr: *mut SCIP_EXPR, ownerdata: *mut SCIP_EXPR_OWNERDATA) -> SCIP_RETCODE>, ownercreatedata: *mut c_void) -> SCIP_RETCODE>,
    ownercreatedata: *mut c_void,
) -> SCIP_RETCODE

constructs the expanded power of a sum expression

@attention The number of terms in the expansion grows exponential with the exponent. Be aware of what you wish for.