Function SCIPisRelaxSolValid 

pub unsafe extern "C" fn SCIPisRelaxSolValid(
    scip: *mut SCIP,
) -> c_uint

returns whether the relaxation solution is valid

@return TRUE, if the relaxation solution is valid; FALSE, otherwise

@pre This method can be called if @p scip is in one of the following stages: - \ref SCIP_STAGE_PRESOLVED - \ref SCIP_STAGE_SOLVING