pub unsafe extern "C" fn SCIPpqueueCreate(
pqueue: *mut *mut SCIP_PQUEUE,
initsize: c_int,
sizefac: f64,
ptrcomp: Option<unsafe extern "C" fn(elem1: *mut c_void, elem2: *mut c_void) -> c_int>,
elemchgpos: Option<unsafe extern "C" fn(elem: *mut c_void, oldpos: c_int, newpos: c_int)>,
) -> SCIP_RETCODEExpand description
creates priority queue