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#' Check Whole Number
#'
#' @description
#' Checks if non-missing integer scalar or double equivalent using
#'
#' `vld_number(x) && (is.integer(x) || vld_true(all.equal(x, trunc(x))))`
#'
#' **Pass**: `1`, `2L`, `1e10`, `-Inf`
#'
#' **Fail**: `"a"`, `1:3`, `NA_integer_`, `log(10)`
#'
#' @inheritParams params
#' @inherit params return
#'
#' @family chk_scalars
#'
#' @examples
#' # chk_whole_number
#' chk_whole_number(2)
#' try(chk_whole_number(1.1))
#' @export
chk_whole_number <- function(x, x_name = NULL) {
if (vld_whole_number(x)) {
return(invisible(x))
}
if (is.null(x_name)) x_name <- deparse_backtick_chk(substitute(x))
abort_chk(
x_name,
" must be a whole number (non-missing integer scalar or double equivalent)",
x = x
)
}
#' @describeIn chk_whole_number Validate Whole Number
#'
#' @examples
#' # vld_whole_number
#' vld_whole_number(2)
#' @export
vld_whole_number <- function(x) {
vld_number(x) &&
(is.integer(x) || vld_true(all.equal(x, trunc(x))))
}
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