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Add text to 'as' operator about set/vector conversion #203

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Aug 11, 2023
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Add text to 'as' operator about set/vector conversion #203

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14 changes: 14 additions & 0 deletions script-reference/operators.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -339,6 +339,11 @@ Only the following kinds of type casts are supported currently:
- A value of declared type :zeek:type:`any` can be cast to its actual
underlying type.
- All values can be cast to their declared types (i.e., this is a no-op).
- :zeek:type:`set` and :zeek:type:`vector` values can be converted into each
other, with the following limitations: (1) A :zeek:type:`set` being converted
into a :zeek:type:`vector` can only have a single index type. Converting a
set with multiple index types will return an error. (2) The :zeek:type:`set`
and :zeek:type:`vector` types must have the same internal type.

The function in this example tries to cast a value to a string:

Expand All @@ -352,6 +357,15 @@ The function in this example tries to cast a value to a string:
s = (a as string);
}

The function in this example converts a set to a vector:

.. code-block:: zeek

function example()
{
local s: set[count] = { 1, 2, 3 };
local v = s as vector of count;
}

Other operators
---------------
Expand Down