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Merge pull request #3743 from ethereum/popStorageArray

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pop() for storage arrays
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chriseth
2018-05-30 18:32:08 +02:00
committed by GitHub
parent a77531d245 fea0d116f7
commit 5a73044fa7
37 changed files with 457 additions and 4 deletions
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docs/types.rst
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@@ -682,7 +682,7 @@ possible:
It is planned to remove this restriction in the future but currently creates
some complications because of how arrays are passed in the ABI.
.. index:: ! array;length, length, push, !array;push
.. index:: ! array;length, length, push, pop, !array;push, !array;pop
Members
^^^^^^^
@@ -693,6 +693,8 @@ Members
``.length`` member. This does not happen automatically when attempting to access elements outside the current length. The size of memory arrays is fixed (but dynamic, i.e. it can depend on runtime parameters) once they are created.
**push**:
Dynamic storage arrays and ``bytes`` (not ``string``) have a member function called ``push`` that can be used to append an element at the end of the array. The function returns the new length.
**pop**:
Dynamic storage arrays and ``bytes`` (not ``string``) have a member function called ``pop`` that can be used to remove an element from the end of the array.
.. warning::
It is not yet possible to use arrays of arrays in external functions.