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parse_ipv4_mask()

Converts the input string of IPv4 and netmask to long number representation (signed 64-bit).

parse_ipv4_mask("127.0.0.1", 24) == 2130706432
parse_ipv4_mask('192.1.168.2', 31) == parse_ipv4_mask('192.1.168.3', 31)

Syntax

parse_ipv4_mask(Expr, PrefixMask)

Expr: A string representation of the IPv4 address that will be converted to long.
PrefixMask: An integer from 0 to 32 representing the number of most-significant bits that are taken into account.

If conversion is successful, the result will be a long number. If conversion isn't successful, the result will be null.