pub unsafe extern "C" fn SCIPexprhdlrSetHash(
exprhdlr: *mut SCIP_EXPRHDLR,
hash: Option<unsafe extern "C" fn(scip: *mut SCIP, expr: *mut SCIP_EXPR, hashkey: *mut c_uint, childrenhashes: *mut c_uint) -> SCIP_RETCODE>,
)Expand description
set the hash callback of an expression handler