pub unsafe extern "C" fn SCIPexprhdlrSetCopyFreeData(
exprhdlr: *mut SCIP_EXPRHDLR,
copydata: Option<unsafe extern "C" fn(targetscip: *mut SCIP, targetexprhdlr: *mut SCIP_EXPRHDLR, targetexprdata: *mut *mut SCIP_EXPRDATA, sourcescip: *mut SCIP, sourceexpr: *mut SCIP_EXPR) -> SCIP_RETCODE>,
freedata: Option<unsafe extern "C" fn(scip: *mut SCIP, expr: *mut SCIP_EXPR) -> SCIP_RETCODE>,
)Expand description
set the expression handler callbacks to copy and free expression data