network_mask.md
In ipaddress: Data Analysis for IP Addresses and Networks

input validation works

Code
  prefix_length(1L)
Condition
  Error in `prefix_length()`:
  ! `x` must be an <ip_network>, <ip_interface> or <ip_address> vector

Code
  netmask(ip_address("1.2.3.4"))
Condition
  Error in `netmask()`:
  ! `x` must be an <ip_network>, <ip_interface> or integer vector
Code
  netmask(1.5, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must be a integer vector
Code
  netmask(1L, "yes")
Condition
  Error in `subnet_mask()`:
  ! `is_ipv6` must be a logical vector or NULL
Code
  netmask(-1L, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must be positive
Code
  netmask(33L, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must not be greater than 32 for IPv4
Code
  netmask(129L, TRUE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must not be greater than 128 for IPv6

Code
  hostmask(ip_address("1.2.3.4"))
Condition
  Error in `hostmask()`:
  ! `x` must be an <ip_network>, <ip_interface> or integer vector
Code
  hostmask(1.5, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must be a integer vector
Code
  hostmask(1L, "yes")
Condition
  Error in `subnet_mask()`:
  ! `is_ipv6` must be a logical vector or NULL
Code
  hostmask(-1L, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must be positive
Code
  hostmask(33L, FALSE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must not be greater than 32 for IPv4
Code
  hostmask(129L, TRUE)
Condition
  Error in `subnet_mask()`:
  ! `prefix_length` must not be greater than 128 for IPv6