Invalid input count

Returns TRUE if input count is not valid, FALSE otherwise.

Usage

.is_invalid_count(
  n,
  allow_null = TRUE,
  fail_mode = c("predictably", "gracefully")
)

Arguments

n

Count value to validate

allow_null

NULL value may be allowed when functions calculates value of n automatically.

fail_mode

How to handle validation errors: "predictably" (fail fast) or "gracefully" (return FALSE on error)

Value

boolean