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Abstract Contracts: Add note about function type

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Raghav Dua 2018-01-23 23:23:18 +05:30 committed by GitHub
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docs/contracts.rst
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@ -1053,6 +1053,19 @@ but they can be used as base contracts::
If a contract inherits from an abstract contract and does not implement all non-implemented functions by overriding, it will itself be abstract.
Note that an abstract function is different from a :ref:`Function Type <function-types>` even though their syntax looks very similar.
Example of Abstract function (a function declaration)
::
function foo(address) external returns (address);
Example of a Function Type (a variable declaration, where the variable is of type ``function``)
::
function(address) external returns (address) foo;
.. index:: ! contract;interface, ! interface contract
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