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Add reference to default values in mapping section

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Denton Liu 2016-07-04 10:52:08 -04:00
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commit d4d7d9854a
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docs/types.rst
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@ -570,7 +570,7 @@ can actually be any type, including mappings.
Mappings can be seen as hashtables which are virtually initialized such that
every possible key exists and is mapped to a value whose byte-representation is
all zeros. The similarity ends here, though: The key data is not actually stored
all zeros: a type's :ref:`default value <default-value>`. The similarity ends here, though: The key data is not actually stored
in a mapping, only its ``sha3`` hash used to look up the value.
Because of this, mappings do not have a length or a concept of a key or value being "set".