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Merge remote-tracking branch 'origin/develop' into develop_060

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Had to adjust gas costs during merge.
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chriseth
2019-09-24 10:28:22 +02:00
parent 63eb097c3e c4208a6ab8
commit f3c4f466f6
43 changed files with 828 additions and 149 deletions
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docs/types/mapping-types.rst
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@@ -17,7 +17,8 @@ byte-representation is all zeros, a type's :ref:`default value <default-value>`.
mapping, only its ``keccak256`` hash is 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.
value being set, and therefore cannot be erased without extra information
regarding the assigned keys (see :ref:`clearing-mappings`).
Mappings can only have a data location of ``storage`` and thus
are allowed for state variables, as storage reference types