R/bounds.R

In olafmersmann/soobench: Single Objective Optimization Benchmark Functions

#' Retrieve the lower or upper bounds of a test function.
#'
#' @param fn [\code{\link{soo_function}}] Object of type \code{\link{soo_function}} to query.
#' @return [\code{numeric}] Vector of lower or upper bounds of test function.
#' @export
#' @rdname bounds
lower_bounds <- function(fn)
  UseMethod("lower_bounds")

#' @export
#' @rdname bounds
upper_bounds <- function(fn)
  UseMethod("upper_bounds")

#' @export
#' @method lower_bounds soo_function
#' @method  lower_bounds soo_function
lower_bounds.soo_function <- function(fn)
  attr(fn, "lower_bounds")

#' @export
#' @method lower_bounds wrapped_soo_function
#' @method  lower_bounds wrapped_soo_function
lower_bounds.wrapped_soo_function <- function(fn)
  lower_bounds(inner_function(fn))

#' @export
#' @method upper_bounds soo_function
#' @method  upper_bounds soo_function
upper_bounds.soo_function <- function(fn)
  attr(fn, "upper_bounds")

#' @export
#' @method upper_bounds wrapped_soo_function
#' @method  upper_bounds wrapped_soo_function
upper_bounds.wrapped_soo_function <- function(fn)
  upper_bounds(inner_function(fn))