Berserk Docs
Scalar FunctionsIP Address Functions

ipv4_compare

Compare two IPv4 addresses, returning -1, 0 or 1.

Both are cut to the smallest of their own /masks and the optional prefix (0-32; any other prefix counts as 32) before comparing. An invalid address, or a null prefix, gives null. Octets must be written without leading zeros; surrounding whitespace is ignored.

Syntax

ipv4_compare(ip1, ip2)

Parameters

Prop

Type

Given a dynamic field

This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.

Returns: long

Syntax

ipv4_compare(ip1, ip2, prefix)

Parameters

Prop

Type

Given a dynamic field

This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.

Returns: long

Syntax

ipv4_compare(ip1, ip2, prefix)

Parameters

Prop

Type

Given a dynamic field

This parameter is string-only. In permissive mode — the default — almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. Strict mode rejects the dynamic instead of coercing it. See String coercion and the asXXX family.

Returns: long

Examples

Example 1

print ipv4_compare('192.168.1.1', '192.168.1.255', 24)
print_0 (long)
0

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