## STATUS CODES
.add_status_codes <- function(){
## nloptr
## success
solver <- .ROI_plugin_get_solver_name( getPackageName() )
.ROI_plugin_add_status_code_to_db(solver, 1L, "NLOPT_SUCCESS",
"Generic success return value.", 0L)
.ROI_plugin_add_status_code_to_db(solver, 2L, "NLOPT_STOPVAL_REACHED",
"Optimization stopped because stopval (above) was reached.",
0L)
.ROI_plugin_add_status_code_to_db(solver, 3L, "NLOPT_FTOL_REACHED",
"Optimization stopped because ftol_rel or ftol_abs (above) was reached.",
0L)
.ROI_plugin_add_status_code_to_db(solver, 4L, "NLOPT_XTOL_REACHED",
"Optimization stopped because xtol_rel or xtol_abs (above) was reached.",
0L)
.ROI_plugin_add_status_code_to_db(solver, 5L, "NLOPT_MAXEVAL_REACHED",
"Optimization stopped because maxeval (above) was reached.",
0L)
.ROI_plugin_add_status_code_to_db(solver, 6L, "NLOPT_MAXTIME_REACHED",
"Optimization stopped because maxtime (above) was reached.",
0L)
## failure
.ROI_plugin_add_status_code_to_db(solver, -1L, "NLOPT_FAILURE",
"Generic failure code.")
.ROI_plugin_add_status_code_to_db(solver, -2L, "NLOPT_INVALID_ARGS",
"Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).")
.ROI_plugin_add_status_code_to_db(solver, -3L, "NLOPT_OUT_OF_MEMORY",
"Ran out of memory.")
.ROI_plugin_add_status_code_to_db(solver, -4L, "NLOPT_ROUNDOFF_LIMITED",
"Halted because roundoff errors limited progress. (In this case, the optimization still typically returns a useful result.)")
.ROI_plugin_add_status_code_to_db(solver, -5L, "NLOPT_FORCED_STOP",
"Halted because of a forced termination: the user called nlopt_force_stop(opt) on the optimization's nlopt_opt object opt from the user's objective function or constraints.")
invisible(TRUE)
}
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