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Merge pull request #4778 from ethereum/dynamicArraysDocs

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Change note about returning dynamic arrays.
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chriseth 2018-08-09 01:09:10 +02:00 committed by GitHub
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@ -725,14 +725,11 @@ Members
.. warning:: .. warning::
It is not yet possible to use arrays of arrays in external functions. It is not yet possible to use arrays of arrays in external functions.
.. warning:: .. note::
Due to limitations of the EVM, it is not possible to return In EVM versions before Byzantium, it was not possible to access
dynamic content from external function calls. The function ``f`` in dynamic arrays return from function calls. If you call functions
``contract C { function f() returns (uint[]) { ... } }`` will return that return dynamic arrays, make sure to use an EVM that is set to
something if called from web3.js, but not if called from Solidity. Byzantium mode.
The only workaround for now is to use large statically-sized arrays.
:: ::