Nothing
chk_digits <- function(digits) {
if(is.numeric(digits) && length(digits) == 1L && !anyNA(digits) &&
(is.integer(digits) || digits == trunc(digits))) {
return(invisible())
}
if (!is.numeric(digits)) err("`digits` must be numeric.")
if (length(digits) != 1L) err("`digits` must be a scalar.")
if (anyNA(digits)) err("`digits` must not be a missing value.")
err("`digits` must be a whole number.")
}
chk_seconds <- function(seconds) {
if (is.numeric(seconds) && length(seconds) == 1L && !is.na(seconds)) {
return(invisible())
}
if (!is.numeric(seconds)) err("`seconds` must be numeric.")
if (length(seconds) != 1L) err("`seconds` must be a scalar.")
err("`seconds` must not be a missing value.")
}
chk_start <- function(start) {
if (is.logical(start) && length(start) == 1L && !is.na(start)) {
return(invisible())
}
if (!is.logical(start)) err("`start` must be class logical.")
if (length(start) != 1L) err("`start` must be a scalar.")
err("`start` must not be a missing value.")
}
chk_x <- function(x) {
if (is.hms(x) && length(x) == 1L && !is.na(x)) {
return(invisible())
}
if (!is.hms(x)) err("`x` must be class hms.")
if (length(x) != 1L) err("`x` must be a scalar.")
err("`x` must not be a missing value.")
}
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