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# last_col() checks its inputs
Code
last_col(Inf, letters[1:3])
Condition
Error in `last_col()`:
! `offset` (Inf) must be smaller than the number of columns (3).
Code
last_col(3, letters[1:3])
Condition
Error in `last_col()`:
! `offset` (3) must be smaller than the number of columns (3).
Code
last_col(0, character())
Condition
Error in `last_col()`:
! Can't select last column when input is empty.
Code
last_col(1:2, letters[1:3])
Condition
Error in `last_col()`:
! `offset` must be a single integer, not an integer vector.
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